2 Computational model 2. From each drop down category, you'll find several choices. The pantograph adopted is a modern asymmetrical pantograph, with the lower articulated frame composed of a single cylindrical arm ending with a fork, and the upper part of the articulated frame consisting in a double arm trapezoid. Scotch Yoke Mechanism Design Equations and Calculator. FIG. Terminology and Definitions-Degree of Freedom, Mobility • Kinematics: The study of motion (position, velocity, acceleration). In this article we will study in detail how the pantograph raises and lowers, how its collector head stays perfectly horizontal during this up Oct 14, 2020 · Using the example of a mechanism producing a scissors-like motion, in this paper a more specific and iterative synthesis process is implemented for the design of a compliant path-generating mechanism. 4% in the optimised catenary design and 39% in the optimised pantograph design, and the contact force Apr 22, 2012 · You can read more about his pantograph design and purchase the plans here. . Jun 6, 2023 · I love working with quilters to make their vision of their finished quilt a reality. The active pantograph research process is complex and intertwined. carried out the wear mechanism, wear analysis, wear calculation, and How a Pantograph Works A pantograph has one fixed point O (the “Origin”), and two special points P and Q. It has the property that Q traces an enlarged, or "scale" copy of whatever P traces. , on a reduced or enlarged scale, or to the same size as the original. I'm always adding new patterns to my E2E design library, so check back often. Mar 31, 2016 · Firstly, the aerodynamic resistance and lift of the pantograph are computed in this paper, which is compared with the experimental results. com/watch?v=00FbRJ5zDLEINSTAGRAM: http Use this Free Cancer Ribbon pantograph design to share your love! Size: height by widthDigital: 10" x 12. ETI/OHE/G/00141 Sheet 3. 5". The pantograph is the quilt stitching that you see on many quilts, for example, stippling or overall spirals. The averaged drag and lift forces exerted on each component of the pantograph followed the second-order polynomial relations against the incoming flow velocity. No. Rho and K. In this video, APQS Education Director Dawn Cavanaugh shows you how easy it is to complete a quilt using a paper pantograph and shares tricks to get your quilts finished in record time by quilting from edge to edge. com/ and https://www. Having defined a model for the pantograph and the catenary, a static equilibrium calculation was made in order to adjust the operating height of the pantograph, which moves longitudinally at Input block Calculation block Output block Pantograph parameters Model generation pantograph Running speed, pantograph distance / forces Model generation catenary Dynamic calculation Geometry adjustment Material properties Geometry Tensile forces Simulation parameters Contact force over distance Contact wire uplift over distance Catenary Summary In order to examine the static and dynamic behavior of the pantograph-catenary system, a special teat facility is established and described in this paper. Pantographs are continuous line quilting pattern designs on a paper roll designed for use on longarm quilting machines. In pantograph and overhead contact line system simulation, pantographs are usually be seen as a mass-dumping-spring model, as shown in Fig. With the above method,the aerodynamic The most common type of pantograph today is the so-called half-pantograph (sometimes Z-shaped), which evolved to provide a more compact and responsive single-arm design at high speeds as trains got faster. In this paper, a catenary online anti-icing technique for a direct feeding system using static var generators (SVGs) is proposed. The type of Pantograph described in the work of Schwenter coincides with the device called Milanese Pantograph later on (Goebel et al. The calculation of the dynamic equation of the pantograph-catenary interaction is considered from a simulation point of view by means of a high performance computing algorithm, where the amount of data and the time requirements have been dramatically reduced. This is an example of a Scotch Yoke mechanism for sine and cosine functions. Its role is to transfer power from the contact line to the electric traction unit. The Scotch Yoke is a mechanism for converting the linear motion of a slider into rotational motion of a crank or vice-versa. , the load on the mast should be calculated separately for every location and safety of the mast checked in accordance with Drg. Oct 2, 2016 · In Germany, the pantograph-catenary contact pressure is regarded as the key detection parameter, which is mainly obtained through the pressure sensors and acceleration sensors in the pantograph. Feb 23, 2022 · 2. The averaged drag and lift forces exerted on each component of the pantograph followed the second-order Design / Calculations • EJMA & ASME B31. 00 - Original price $0. Dec 1, 2020 · Hence when optimising the structure of pantograph strips, the design objectives of the optimisation problem need to involve the uneven ratio of current r a and surficial temperature of pantograph strip T max separately. Two frame system configurations are used for simulation. Mar 7, 2019 · Pantograph designs repeat and fill a specific width of your quilt. Apr 20, 2012 · Online Simple Loads Static's 2D Modeler Calculator Simple Loads and Reactions 2D Static's Modeler Calculator ; Hydraulic Scissor Lift Design Project ; Mathematical Analysis of Actuator Forces in a Scissor Lift ; Scissor Lift Design and Analysis Equations, Mathematical Analysis of Scissor Lifts ; Power Screw Design Equations and Calculator a reference for the design and optimization of high-speed pantographs. Aug 1, 2012 · The aerodynamic forces of pantographs in high-speed operation were simulated numerically with the finite volume method on the basis of the three-dimensional steady incompressible N-S equation and Jan 1, 2017 · For the pantograph used as a reference in this work, the tests were performed in the closed test section, the blockage ratio being around 3%. With these devices, drawings can be enlarged and reduced. Design criteria include the permanent contact of pantograph head and contact wire at high speed and the reduction of both aeroacoustic noise and Jul 1, 2014 · Aiming at the thermal erosion problems caused by high temperatures, detailed pantograph-catenary surface heat flow calculation and evaluation were referred to and a computational model of You might want to try your hand at making a pantograph out of aluminum. Each PDF Pantograph Design file includes two sizes of the design. They keep one-way sliding connections to maintain continuous mechanical contacts. In rough calculation, the stiffness is allowed to be 10 10 N/m. The prerequisites on a computer tool for simulation of catenary-pantograph dynamics can be derived from the presented modelling and simulation aspects and be divided into three categories. A. Dec 1, 2008 · The PANDA tool for pantograph design and testing, presented in [3]. Jul 13, 2023 · Three-dimensional unsteady turbulent flow around Faiveley CX pantograph was described by large-eddy simulations. com/quilting-designs/scrollwork-fre Jul 8, 2022 · Siemens Mobility performs the entire development process including design construction calculation simulation prototype building and production in Austria. 3 shows. 12). Oct 31, 2023 · Whether you’re an artist, engineer, or hobbyist, a pantograph can be a valuable addition to your toolkit. Do the same thing on the other side - move the machine to the other edge of the quilt. r a is defined as the ratio of maximum current density j m to average current density j a on the contact surface of pantograph Apr 1, 2020 · Enhancing the aerodynamic characteristics of the pantograph can be accomplished by optimizing the fairing's design and the installation position of the pantograph (Sun et al. For higher implantations and other locations like masts for turnouts, diamond crossings, umbrella type OHE etc. A quilting pantograph is an overall design that is stitched through the 3 layers of a quilt. Nov 21, 2022 · However, the monitoring of pantograph slider thickness is challenging due to the complex dynamic environment of pantographs. Methods as applied in the benchmark. Posted Mar 2 2020. 35 m. The deployment and folding Take the guesswork out of design with these unique fabric stencils and pantographs. Join the Discussion. First, the system installation scheme and workflow are introduced. 1 System Structure Design. Fig. Sep 25, 2016 · Hi, I want to create a scissor lift mechanism to raise and lower a box for a desk I'm making. To conclude, a pantograph can be a fantastic tool for artists and designers. 14 reports the forces obtained on each single component of the pantograph for the CFD simulation case corresponding to the standard non-instrumented pantograph with a height of 1. - Details of simple pantograph. Therefore, constructive changes for both pantograph and catenary are under development. 2, can be used to demonstrate its key links. 2015. The height of the pantograph is 1600 mm, and there are no baffles installed on the panhead for the original pantograph, as shown in Fig. The most popular machine quilting pantographs. First, it is necessary to establish a suitable PCS model, determine the control target, and design the appropriate measurement system closely related to the control performance and implementation difficulty. 2. Soho - Pantograph By Sarah Ann Myers Available in Paper, Self Print and Digital. Among them the X-axis represents the running time of pantographs head and Y-axis represents the running trajectory of pantographs head in the direction of the locomotive. The aerodynamic force distributions on the structures of the pantograph were explored comparing non-cover and cover cases against the incoming flow velocity of 200, 300, 400 km/h. • Drugge et al. 3 Design Basis • FEA’s – Bellow Temp • FEA – Liner to Spool Intersection • FEA – Pressure Retention and Local Stress • FEA – Floating Ring Design • Clearance – Internal Sleeve to Spool • Clearance – Slotted Hinge Bar • Bellow Movement Calculation using field data Powerful free truss analysis calculator. It is presented from the result that the values of the May 16, 2022 · The pantograph is a railway vehicle roof mounted mechanical system responsible for collecting electric energy from the catenary through sliding contact with an overhead contact line. Dec 3, 2023 · 2-Phase Pantograph Simulation (axes in meters) The pantograph would operate as a 2-phase system, however the motion profile of the unhooking action does not contain the lifting motion that is present with the Klann Linkage system. Often referred to as bread and butter designs, it’s easy to see why digitized pantographs are the most popular type of design on our site. The Harris-Benedict Equation was one of the earliest equations used to calculate basal metabolic rate (BMR), which is the amount of energy expended per day at rest. 3. Print. Pantograph and conductor rail constitutes a dynamic system, as shown in Fig A Pantograph is a drawing aid that simplifies the enlarged copying of pictures or figures. One of the most exciting parts of finishing your quilt with a longarmer is selecting your pantograph, or quilting design. 1 Geometry and mathematical models A type of pantograph used in China is adopted to build the models. The pantograph is a simple apparatus for copying drawings, maps, designs, etc. But this little preview on your pantograph sheet can be very helpful when you’re sorting through a big stack of rolled up papers and can’t see the design at a glance. The pantograph system, shown in Fig. 1a and b, which contains two main components—the catenary and the pantograph [1, 2]. May 1, 2016 · To prevent icing damage on the pantograph, and thereby guarantee safe and reliable traction power supply while maintaining normal traffic operation, an online anti-icing technique for the catenary must be developed. The study will include a reference to literature on the kinematic equations of a 5 bar pantograph, resulting in a workable area for user interaction, and viable position tracking for simulating the virtual blind maze. This Calorie Calculator is based on several equations, and the results of the calculator are based on an estimated average. The design of our device utilizes the kinematics of a pantograph coupled with two Hapkits. The bad state of catenary is able to directly influence the power supply safety of traction power system. In papers [10, 11] it can be seen how compliant pantograph mechanisms can be used for linear displacement applications. The style used by Scheiner in his description about the design and the functionality of the Pantograph and its mathematical background allows including his original textbook Pantographice seu Ars delineandi directly in class. Ideal for structural engineering and DIY projects. Aug 19, 2014 · The key to successfully quilting a pantograph design is understanding that the laser and the needle represent the same point in space. 2 Experimental validation. At the end of the 20th century, the pantograph was replaced by CNC machine systems, and later, with the development of software and the integration of computer-aided design systems with automated production via CAD/CAM/CAE. The design of pantograph and overhead contact line systems should minimize abrasion of two vibration subsystems in operation. 14a refers to knee-upstream while Fig. It makes a great educational toy for families with children, or for people who are into craft activities like patchwork, woodworking, modelling, etc. In the previous article of pantograph we have studied about the need of pantograph and its preceding designs. The pantograph is mainly composed of three parts: panhead, frame system (knuckle, upper and lower arms) and base frame (base and insulator). We model this interaction and study its behavior in the energy transmission process. Second, an image-based slider wear calculation method is presented. Apr 3, 2023 · The pantograph model used for simulation calculation is shown in Figure 17. Your quilting machine throat space determines the max size pantograph you can use for an entire quilt. Look to see where your laser light is on the pantograph and place a strip of painter's tape vertically along that edge. Secondly, the velocity field and vorticity distribution of the pantograph are computed under the effect of the fluid. You may not want to use it on original photos. [9] present some ideas to simulate the interaction pantograph–catenary. Machine Design and Mechanics. Feb 26, 2019 · Advancing the Quilt when Pantograph Quilting. It’s a simple mechanical device made up of four bars linked together in a parallelogram shape. Now on to the one I built. In “Quilter’s Lingo” we sometimes call a pantograph a “panto”! How To Preview Pantograph Design Ideas Scotch Yoke Mechanism Design Equations and Calculator. , Qingdao 266031, China How to Build A Simple Router Pantograph. In this work the state of Jun 1, 2024 · What is a Pantograph? A “pantograph” is a design printed on paper meant to guide a longarm quilter in quilting the design. The aerodynamic uplift force model of pantograph was established and the method to calculate the aerodynamic uplift force was derived. The research on the pantograph-catenary coupling dynamics is mainly concerned with analyzing the effects of the pantograph on the catenary or the impact of the catenary on the pantograph under the excited state, the vibration acceleration of the pantograph head and the catenary, and the pantograph-catenary coupling equations, wear and tear of connection is rigid. Here’s how it works: By simply tracing an object with the pointer, the pantograph makes a copy larger or smaller Jan 1, 2022 · Download Citation | A Pantograph Dynamic Comprehensive Detection System Based on Edge Calculation for Straddle Type Monorail Vehicle | Whether the contact between catenary and pantograph is good Aug 15, 2024 · A linkage invented in 1630 by Christoph Scheiner for making a scaled copy of a given figure. 2003, p. A power spectrum Aug 4, 2020 · If you can trace, you can quilt using a longarm. Open webpage with mathematical proof (Equations and Calculators updated: April 20, 2012). As shown from the result, the above proposed simulation method is very reliable. In this condition, pantograph collector head is divided into 2 parts. But it can be tricky to understand and wrap your brain around how the quilt moves and the designs are evenly spaced. 3 Design Basis • FEA’s – Bellow Temp • FEA – Liner to Spool Intersection • FEA – Pressure Retention and Local Stress • FEA – Floating Ring Design • Clearance – Internal Sleeve to Spool • Clearance – Slotted Hinge Bar • Bellow Movement Calculation using field data Jan 1, 2017 · Some corrections obtained by processing statistical data were introduced into the authors' calculation model, allowing to take into account noise mitigation measures implemented in the train design, namely the corrections directly to the pantograph structure (0-10 dBA), train body shape (0-2 dBA), availability of the open inter-car and undercar In this study, a high efficient inverse dynamic calculation approach has been presented for the special hybrid branches of the haptic. which contains the advantage of the pantograph–catenary aerodynamic design, and the vibration of the Dec 1, 2008 · The PANDA tool for pantograph design and testing, presented in [3]. The model of pantograph with force sensors can be got as Fig. In this tool, four classes of pantograph structures can be chosen to do the simulation, but the model of the contact line and the catenary is simpler than ours. Mechanics Machines Menu . Our extensive selection of fabric marking templates and fabric stencil designs can add elegant curves and angles to your quilting projects. Structural fatigue is a long-term evolutionary process. Open: Scissor Lift Jack Force Bottom Load Proof and Equations Aug 12, 2021 · This paper presents a non-contact measurement of the realistic catenary geometry deviation in the Norwegian railway network through a laser rangefinder. 1. Bobillot*, J. , pantograph–catenary relationship, wheel–rail relationship and fluid–solid relationship), pantograph–catenary system is the key to maintain the constant and reliable power supply for high-speed trains, as shown in Fig. Digital file includes CQP, DXF, HQF, IQP, PAT, QLI, SSD, TXT, WMF and 4QB or PLT. The extension is achieved by applying pressure to the outside of a set of supports located at one end of the lift, elongating the crossing pattern. 3, has its head raised into an operational position by a pneumatic actuator installed in its base. A pantograph (from Greek παντ- 'all, every' and γραφ- 'to write', from their original use for copying writing) is a mechanical linkage connected in a manner based on parallelograms so that the movement of one pen, in tracing an image, produces identical movements in a second pen. The L & W of the box is 15. These limits might change (or be removed) but at the time of writing, guest users are limited to structures with no more than 25 members and 3 restrained degrees of freedom. It’s easy to quilt using pantographs because it simply requires tracing the design. When Design / Calculations • EJMA & ASME B31. 75"Paper: 8" x 11" Print Rows: 1 Original price $0. E2E, longarm, continuous line quilting patterns printed on paper 10' to 12' long. To illustrate this, I aligned the needle with a point in a pantograph design that I just stitched in Photo 1. Modal simulations Dec 13, 2021 · The first of the three photos below show the individual view of a continuous line design, the second is an example of a single pantograph design that works perfectly for borders or sashing, and the last photo is rows of the pantograph repeated to create the edge-to-edge quilt top design. Nov 15, 2023 · If the copy is uneven: Ensure the pantograph is stable throughout the tracing process. While you're on his site though, be sure to check out all that he offers. 2 Pantograph. Import/export DXF. In this work is well Aug 12, 2016 · Pantograph Video #2 showing mathematical process to enlarge a small photograph to a large canvas for painting. Starting in the 18th century, the Jesuit Christoph Scheiner is commonly con-sidered to be the inventor of the Pantograph—even though the descriptions by such that the contact force between pantograph and catenary varies strongly and the contact may even get lost. Since the catenary is difficult to be modeled by a hardware teat facility indoor, a mixed theoretical-experimental technique is introduced, in which the pantograph is an actual one but the catenary is just an input of a mathematical May 24, 2024 · This paper investigates the aerodynamic behavior and dynamic characteristics of high-speed train pantographs under various operating conditions using advanced aerodynamic simulations and dynamic analyses. 6112/KSCFE. It unfolds and extends along a vertical axis. The aerodynamic forces of pantographs in high-speed operation were simulated numerically with the finite volume method on the basis of the three-dimensional steady incompressible N-S equation and the k-e turbulence model. 1a. 067 Corpus ID: 112355849; RESEARCH OF HIGH-SPEED TRAIN PANTOGRAPH SHAPE DESIGN FOR NOISE AND DRAG REDUCTION THROUGH COMPUTATIONAL ANALYSIS @inproceedings{Jeong2015RESEARCHOH, title={RESEARCH OF HIGH-SPEED TRAIN PANTOGRAPH SHAPE DESIGN FOR NOISE AND DRAG REDUCTION THROUGH COMPUTATIONAL ANALYSIS}, author={Soonyong Jeong and S. Jan 4, 2024 · The research of pantograph-catenary digitalization is an important method for the design of pantograph-catenary scheme of high-speed train, and it is an important way to break through the key theoretical foundation and technology of pantograph-catenary, and also an important process to adapt to the research and development of pantograph Oct 1, 2021 · subsequent work considering the calculation efficiency. How to Make a Pantograph. Aug 10, 2022 · - Requirements to design life - Design life of pantograph. The linkage is pivoted at O; hinges are denoted circledot . Design and solve 2D trusses online, instantly compute internal forces, reactions, and deformations. Feb 6, 2023 · 2. Mix n Match by printing out multiple designs and taping them together to create a pantograph design perfectly sized for your longarm machine. In this paper, four aspects on the catenary research of high-speed railway are reviewed in detail, namely the solution methods for catenary iv) Toggle mechanism, Pantograph, Hooke’s joint and Ackerman Steering gear mechanism. Mar 31, 2018 · Thus, working with the Pantograph can enrich both the teaching of mathematics and history. If you’re new to this, know that a simple online search would unveil an entire universe of pantograph designs. Appropriate interaction between pantograph and catenary is imperative for smooth operation of electric trains. The principal components of a pantograph are a main frame, an arm, a pantograph head and a drive. This can be achieved through hydraulic, pneumatic, mechanical or simply muscular means. Our engineers will work through the scissor lift design calculations depending on the scissor lifts sizes. Pantograph quilting is an easier form of quilting because you’re following a drawn design. Lee and J. flectors on both sides of the pantograph to isolate the noise radiation, or installing the pantograph in the cavity to reduce the incoming speed at the bottom, or carrying out aer-odynamic noise reduction design for the shape of the rod [18–20], or laying sound-absorb- Oct 1, 2011 · Lastly, in form of tables, this paper presents the predicting results of fatigue lifetime of pantograph V500 based on different reliability levels at 500km/h and the predicting results of As one of the three basic relationships of high-speed railway (i. Feb 19, 2012 · How can I calculate the position of pantograph's tip from the angles at its base? Jun 30, 2015 · DOI: 10. A Pantograph Dynamic Comprehensive Detection System Based on Edge Calculation for Straddle Type Monorail Vehicle Guojun Zhuang1, Kaiyan Dong1(B), Chao Chen2, Shenghua Wang2, Yaqi Ding2, and Zekun Liu1 1 CRRC Qingdao Sifang Rolling Stock Research Institute Co. All the pantograph designs I’ve shared so far are 4-inches wide. Oct 11, 2015 · The PANDA tool presented in is used for the pantograph design and testing. There is no interlock side to side on P2P designs, but there may be an interlock top to bottom. Today's Live is for electric Locomotive Pantograph. Use the smaller design if you're quilting on a home sewing machine on a frame: Use the larger 7 inch design if you have a longarm. The height difference that needs to be achieved (from fully collapsed (with acceptable angles) to fully extended) needs to be 15. 00 for a haptic pantograph mechanism. 2. For the model shown in paper [12], the pantograph apparatus is not included but a similar double Oct 1, 2021 · subsequent work considering the calculation efficiency. Paper [10] exhibits a large motion displacement analyzed with an FEM simulation. 2 shows. This means you need at least 5 to 6 inches of quilting will space in order to quilt the design on your quilt. It might be less likely to move around on you due to the weight of the metal. How to print out and put together a Fee Pantograph design https://www. This system is part of the next wave of pantograph testing technologies that are changing the way rail test teams around the world conduct research. The image analysis is employed on the pantograph profile light fringe images acquired by industrial cameras. Whenever you look at the laser, imagine that you are also looking at the needle. Because it's developed purely in JavaScript and HTML, no data is ever shared with our servers, ensuring your privacy. The quilter Apr 20, 2012 · Scissor Lift Jack Force Bottom Load Calculator. Overview: A pantograph, first invented in the early 1600s, was used to make exact copies before there were any Xerox machines around. - Failure rate per system. Jun 1, 2024 · The block-on-ring current-carrying friction and wear test machine designed by the state key laboratory of rail transit vehicle system of Southwest Jiaotong University was used in this study to investigate the variation of performance parameters related to wear performance of pantograph strip during the current-carrying friction and wear process, and to provide data support for the convenient device). And then through the design of line test, the effectiveness of the simulation will be verified by the measured data. The simulations show significant fluctuations in aerodynamic loads during tunnel entry and exit, heavily influenced by train speed and pantograph position (raised/lowered). Continuous line patterns allow for fast, seamless edge-to-edge designs to stitch-out on the quilt. This software is block design, quilt design, and pantograph design software all-in-one. 1–2) have been widely used for centuries; for example, in surveying and embroidery. The dispersion of the longitudinal deviation is assumed to follow a Gaussian distribution. 14b refers to knee-downstream orientation. Our exclusive pantos have a feature unique from all other pantographs available. October, 2011 Maintenance Handbook on Pantograph AM-12 and Similar Design 2 MAINTENANCE HANDBOOK ON PANTOGRAPH AM-12 & SIMILATR DESIGN (W ITH SPECIAL FEATURE ON PANTO ENTANGLEMENT) QUALITY POLICY “To develop safe, modern and cost effective Railway Technology complying with Statutory and Regulatory Mar 1, 2016 · the small calculation amount of URANS method can be shown in th e boundary layer, but a lso the . If a line drawing is traced by the first point, an Dec 1, 2023 · Active pantograph research has gradually grown in importance in locomotive pantograph research (Pisano & Usai, 2004). Aug 1, 2015 · Time delays for active pantograph suspension systems are often encountered in the practical controller procedure, especially in the digital controller as it implements the calculations associated with intricate control law, transmission sensors and actuators hardware. When force sensors are assembled in frame, pantograph model is as Fig. P2P (point to point) are E2E designs that have the start and stop points at the outer most edges of the design. And all calculation operations are only matrix multiplica-tion without numerical derivation. Jan 29, 2022 · This is a free truss calculator, however, there are some limits on the size of structure that can be analysed without logging in as a member. Here's a good link to some instructions for building one: How to Build a Pantograph. Calculation Formula This article describes the structure of single-arm pantograph briefly , analyses the influen of contact pressure between pantograph and catenary on pantograph’s work, calculates one single arm pantograph’s raising torque by virtual work principle based on establishing mathematical computational geometry model of pantograph, finally, designs flectors on both sides of the pantograph to isolate the noise radiation, or installing the pantograph in the cavity to reduce the incoming speed at the bottom, or carrying out aer-odynamic noise reduction design for the shape of the rod [18–20], or laying sound-absorb- Aug 3, 2016 · Fabricating a welder gun holder for the pantograph plus welding experiments. (1997) proposed various constructions of the passive pantograph and proposals for active control concepts for the first time. Poetsch et al. the pantograph were explored comparing non-cover and cover cases against the incoming flow velocity of 200, 300, 400 km/h. (ii) Reference presents some ideas to simulate the pantograph-catenary interaction. The research process, depicted in Fig. Therefore, as loads get heavier, scissor lift measurements need to adjust to accommodate the extra weight and stress on components. Each arm of the crosses is called a ‘scissor arm’ or ‘scissor member’. Jul 1, 2023 · Therefore, the crack propagation life of pantographs should be predicted to provide theoretical reference for pantograph design, manufacture, maintenance, and operation and P C system monitoring. N UMERICAL COMPUTA TION AND OPTIMIZATION DESIGN OF PANTOGRAPH AERO DYNAMIC NOISE. The mast employment schedules are prepared only for standard setting distance as given in Drg. ETI/OHE/ G/00111 Sh. Massat+, J. A major goal of understanding kinematics is to develop the ability to design a system that will satisfy Mar 2, 2020 · Computing Profession. Oct 6, 2021 · The calculation method and the optimization process of the aerodynamic uplift force of the pantograph proposed in this study are general, which can be applied to various types of pantographs, and can provide a reference for the design and optimization of high-speed pantographs. CNC BRUSHED PATTERNS: https://www. According to the characteristics of pantograph structure and working status of straddle type monorail vehicle, the pantograph dynamic comprehensive detection system based on edge calculation for straddle type monorail vehicle refers to the requirements of TB/T 3185–2007 dynamic detection system for pantograph of electric locomotive, Railway Transport [2008] No Jan 1, 2017 · Role of pantograph components in generating aerodynamic uplift. The quilting is done from side to side, top to bottom, over the entire quilt without regard to the pieced or appliqued design of the top. load, through the use of linked, folding supports, in a crisscross “X” pattern, referred to as a pantograph (or, simply, a scissor mechanism). H. You’ll see the whole sheet when it’s all unrolled after all. Dec 1, 2023 · The active pantograph research process is complex and intertwined. e. , 2020; Zhang et al Alongside pantograph sway, D/Gauge worked closely with Brecknell Willis (Wabtec) and Furrer+Frey to develop a model for the relationship between wire deviation (the lateral distance between the pantograph centreline and the wire) and roll of the pantograph head (the natural rotation as the wire traversed from Feb 22, 2022 · Obtained the pantograph trajectory diagram, the pantograph torque change diagram, and the pantograph balance bar angle change diagram to visually show the pantograph operation law. Changing heights of overhead lines to accommodate level crossings, overbridges, and tunnels pose significant challenges in maintaining consistent current collection performance as the pantograph aerodynamic profile, and thus aerodynamic load changes significantly with operational Nov 22, 2008 · This article presents a novel inverse dynamic calculation approach for a haptic device with pantograph parallel platform. Even if you're not interested in a pantograph, he has a lot of other machines you can buy plans for that are well thought out and usually superior to factory made tools. #electictrain#electric locomotive#electric locomo Continuous line Paper Pantograph Patterns designed by multiple different designers measuring between 121" - 144" long. which contains the advantage of the pantograph–catenary aerodynamic design, and the vibration of the Feb 29, 2024 · As we conclude, it's crucial to note that our Roof Truss Calculator provides a secure, accurate, and user-friendly solution for all your roof truss calculation needs. youtube. urbanelementz. 4. It laid a good foundation for future generations to further research on the kinematics and operational performance of pantographs and has guiding significance for Introduction. Share. If you are local, I have these Welcome to Beam Calculator, our free version of the SkyCiv Beam Analysis Software! Our calculator generates the reactions, shear force diagrams (SFD), bending moment diagrams (BMD), deflection, and stress of a cantilever beam or simply supported beam. The design allows for a stable platform that can be elevated to various heights, making it ideal for maintenance, construction, and warehouse tasks. A pantograph is a system of articulated arms fixed on the roof of the locomotive. This step by step video will show you how you can build your own router pantoghraph . This approach uses vector differential equations in kinematics analysis, hence deriving the explicit expressions of all links’ linear velocities, linear accelerations, angular velocities, and angular accelerations. , Ltd. Quick and easy build and its 3 days ago · Scissor lifts were developed to provide a safe and efficient way to work at height, reducing the risk of injuries associated with ladders and scaffolding. Digitized Edge to Edge Quilting Pantographs. Double arm pantograph Single arm Nov 1, 2022 · In this paper, we will give a simulation model and calculation method of pantograph and conductor rail at first. Challenge E: Bringing the territories closer together at higher speeds Design of pantograph-catenary systems by simulation. Kim Pantographs and contact lines are two independent vibration subsystems. A paper pantograph is placed on a table attached to the back of the quilting frame and a light similar to a laser pointer is fastened to the machine. For example, test groups can perform more accurate calculations of power factor and loss, which have a direct effect on operating costs. Below, my Dad describes the design he built. Jul 7, 2022 · The Pantograph Planner Calculator will tell you which Pantograph Planner template to use and which index mark to use for the information you provided. Based on two symmetric pantograph mechanisms, a kinematic analysis of the multi-link rigid-body model is performed. [10] Feb 3, 2024 · In order to obtain the dynamic characteristic parameters of pantograph at higher speed, it is necessary to study the dynamic behavior of pantograph and catenary, and a calculation method of orbital model is proposed and verified by case study. May 1, 2013 · The research results of this paper provide a theoretical basis for improving the current collection quality of pantograph-catenary systems, and is useful for material selection or new type design Jan 1, 2013 · This article describes the structure of single-arm pantograph briefly , analyses the influen of contact pressure between pantograph and catenary on pantograph’s work, calculates one single arm Apr 20, 2012 · Scissor Lift Jack Force Center Load Calculator. Aug 25, 2022 · PUBLISHED ON August 25, 2022 Mechanical Design Design and development of modern pantograph. -P. Mentel* *: Engineering Department, French Railways (SNCF), Paris, France +: Research Department, French Railways (SNCF), Paris, France Corresponding author: Adrien Bobillot ([email protected]), Direction de l’Ingénierie, 6 Av May 20, 2023 · At this point, you can slide the pantograph left or right as needed so your design will begin along the edge as you want it to. The key function of a railway Overhead Contact Line (OCL) is to supply power to electric traction units. A critical factor determining scissor lift dimensions is the maximum lift capacity. The calculation of the wear value of the slide plate is performed and the real-time operating state of the pantograph is estimated according to the wear value. In Japan, the disconnection of pantograph-catenary system and the contact wire wear are focused on as the key detection parameters. 20. The random geometry deviation is included in the catenary model to investigate its effect on the pantograph–catenary interaction. 186. NOTE: E2E (edge to edge) designs are continuous line pantograph / border / sashing designs. Grace Quilter’s Creative Design Software. Most designs also include a DWF, GIF, MQR and PDF. By following our step-by-step guide, you can unlock the full potential of a pantograph and replicate drawings with precision. Uneven pressure can lead to inconsistencies. Select your favorite template or pantograph design along with some machine embroidery accessories and create something E2E Design Library Edge to Edge (E2E) or Pantographs are the designs that are quilted across your quilt top. A sketch of a pantograph is given in Fig. How Does a Pantograph Work? By Herbert Bruderer. When sensors in pantograph head, dynamic equations can be got: m 1 m0 þ m 0 2 €x 1 þc 0_x 1 c 0x_ 0 Jan 9, 2024 · Brandani et al. In this video, I will show you how to set up, Oct 1, 2012 · To facilitate the calculation, deviation of the contact force can be reduced by 33. Completed oil painting from small photograph s Hi, friends Welcome to the Let's Grow Up Youtube channel. By placing a pencil at P (or P^'), a dilated image is obtained at P^' (or P). May 14, 2007 · The fundamental technical issues affecting this interface performance of the railway Overhead Contact Line and pantograph are described. Mar 31, 2018 · Because stiffness of force sensors is much larger than the one in pantograph mass model. This approach does not require the calculation of constraint forces in the joints. This is the primary reason the pantograph design was discarded. Download Citation Raising Torque Calculation System Design for Single-Arm Pantograph Raising torque is one of the import parameters when we design pantograph. Pantographs (see Figs. In contrast to the regular influence coefficient method A little preview of your paper pantograph doesn’t seem like a too important thing. Scissor lifts are widely used in industrial applications, and also form a staple design element in competitive robotics. Nov 1, 2019 · Focusing on the wear problems that occur on the contact wire and the pantograph strip used in metro system, Wei et al. [12] undertook an aerodynamic and aeroacoustics analysis of a high-speed pantograph model to reduce aerodynamic noise and discussed the possibility to develop a new design of the Feb 29, 2024 · The pantograph mechanism lasted the longest in the copying-milling and multi-spindle machine tools. In this step-by-step guide, we’ll walk you through the process of using a pantograph to create amazing designs. Nov 10, 2017 · The interaction between the catenary and pantograph is one of the most crucial factors that determine the train operation in high-speed railway. 2-Phase Pantograph Simulation (axes in meters) The pantograph would operate as a 2-phase system, however the motion profile of the unhooking action does not contain the lifting motion that is present with the Klann Linkage system. This transfer takes places at the moving interface between the OCL and pantograph and it is the primary function of the designers to ensure the Jul 29, 2022 · Pantograph measurements and the evaluation of the catenary condition can be made with regular railway engines equipped with measurement systems during normal operation. The pantograph mechanism is mounted on the roof of the train and often consists of a head assembly and a variable height frame assembly. Below is a chart of recommended sizes to stay with depending on your machine throat size. I basically need it to go from Jan 19, 2021 · Pantographs! One of the best tools a longarm quilter, especially if you are new to longarm quilting, can own. In this paper, we propose a non-contact monitoring system for pantograph slider wear. were the first to apply the finite element method to pantograph reliability analysis in 1992, they simplified the system into a lumped system to obtain the dynamic stiffness of the pantograph with sufficient accuracy, which greatly improves the accuracy of the calculation compared with the mass reduction method. Louis Faiveley invented this type of pantograph in 1955. Jan 29, 2014 · Siano et al. spru mnyhf mcvb hxxuyq tcleel zig vwioiy oatoxb pghj miigsf