Relevant bibliographies by topics / Pantograph mechanism

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Pantograph mechanism'

Author: Grafiati
Published: 4 June 2025
Last updated: 6 July 2025

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Journal articles on the topic "Pantograph mechanism"

1

Bazanchuk, Galina, Sergey Kurakov, and Grigoriy Tikhomirov. "PANTOGRAPH: THE HISTORY OF THIS UNIVERSAL DEVICE." LIFE OF THE EARTH 46, no. 1 (2024): 81–89. http://dx.doi.org/10.29003/m3776.0514-7468.2024_46_1/81-89.

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The article talks about the important role played by the rectilinear-directing mechanism in the history of world science and technology. Using the example of pantograph, an early mathematical instrument, we will trace the development of this design, unique in its simplicity, over time and show rare examples of these devices from the collection of the Museum of Bauman Moscow State Technical University. The widespread use of pantographs dates back to the 18th-19th centuries, which allows us to reveal the relationship between natural sciences (the body of knowledge about the Earth, natural objects, phenomena and processes) and engineering, purely technical disciplines, using the example of the use of these scientific instruments in the activities of naturalists and scientists and inventors. Until recently, in mechanical engineering, the use of pantograph mechanisms made it possible to solve the problems of producing parts with complex shaped surfaces on copying machines without the use of CNC systems. Nowadays, copying machines with pantographs continue to be produced, but rather for hobbies, leisure, and artistic processing of materials. The authors’ choice of the topic is dictated by the infrequent mention of such tools and mechanisms in modern Russian publications and sources.
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Popova, Lyudmila, Irina Taranets, Ekaterina Romanova, Marina Pikulenko, and Aleksandra Mazaeva. "PECULIARITIES OF THE PREPARATION AND CONDUCT OF EXCURSIONS IN A NATURAL SCIENCE MUSEUM AND BOTANICAL GARDE." LIFE OF THE EARTH 46, no. 1 (2024): 73–80. http://dx.doi.org/10.29003/m3775.0514-7468.2024_46_1/73-80.

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The article talks about the important role played by the rectilinear-directing mechanism in the history of world science and technology. Using the example of pantograph, an early mathematical instrument, we will trace the development of this design, unique in its simplicity, over time and show rare examples of these devices from the collection of the Museum of Bauman Moscow State Technical University. The widespread use of pantographs dates back to the 18th-19th centuries, which allows us to reveal the relationship between natural sciences (the body of knowledge about the Earth, natural objects, phenomena and processes) and engineering, purely technical disciplines, using the example of the use of these scientific instruments in the activities of naturalists and scientists and inventors. Until recently, in mechanical engineering, the use of pantograph mechanisms made it possible to solve the problems of producing parts with complex shaped surfaces on copying machines without the use of CNC systems. Nowadays, copying machines with pantographs continue to be produced, but rather for hobbies, leisure, and artistic processing of materials. The authors’ choice of the topic is dictated by the infrequent mention of such tools and mechanisms in modern Russian publications and sources.
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Cao, Yan, Yu Bai, and Qiangfeng Wang. "Complexity Simulation on Application of Asymmetric Bionic Cross-Section Rod in Pantographs of High-Speed Trains." Complexity 2018 (August 1, 2018): 1–12. http://dx.doi.org/10.1155/2018/3087312.

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Ground transportation means and aircrafts with high-speed running are composed of many rod components. Aerodynamic noise generated therefrom is very outstanding. Reduction of the aerodynamic noise of rods becomes a hot topic in recent years. Most reported studies are tentative researches on aerodynamic noise of a pantograph or involve noise reduction of the pantograph with using porous materials or reshaping rod surfaces. Through using porous materials and reshaping rod surface, the aerodynamic noise of pantograph can be reduced to a certain extent, but the aerodynamic resistance will be increased and it is not convenient for practical application in engineering. Regarding this situation, the paper explores noise reduction performance of a feather on the back of a carrier pigeon and conducts the bionic design on rod surface. Through numerical simulation, the paper researches noise reduction performance of the bionic structure on the rod surface, reveals the mechanism of bionic noise reduction, and explores noise reduction effects of bionic structural rods on pantographs of the high-speed trains.
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Noh, Hee-Min. "Numerical analysis of aerodynamic noise from pantograph in high-speed trains using lattice Boltzmann method." Advances in Mechanical Engineering 11, no. 7 (2019): 168781401986399. http://dx.doi.org/10.1177/1687814019863995.

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A pantograph in contact with a catenary for power supply is one of the major aerodynamic noise sources in high-speed trains. To reduce pantograph noise, it is essential to understand the noise generation mechanism of the pantograph. However, it is difficult to determine this mechanism through measurement. Therefore, in this study, the aerodynamic and acoustic performances of a pantograph in a high-speed train were investigated through numerical analysis using the lattice Boltzmann method. First, a real-scaled pantograph was modeled through computer-aided design. Then, the surface and volume meshes of the pantograph model were generated for simulation analysis. Numerical simulation was conducted at a speed of 300 km/h based on the lattice Boltzmann method. Based on the time derivative analysis of flow pressures, it was concluded that the panhead, joint, and base were the dominant noise sources in the pantograph. In particular, various vortexes were generated from the metalized carbon strip of the panhead. The peaks of the sound pressure level propagated from the panhead were 242, 430, and 640 Hz. The noise generation mechanism was analyzed through numerical simulation using noise characteristics.
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Dong, Yiming, Binghong Li, Zhonghua Chen, Hebin Wang, and Huayang Zhang. "A Study on the Pantograph Slide Wear Model Based on Energy Dissipation." Applied Sciences 15, no. 12 (2025): 6748. https://doi.org/10.3390/app15126748.

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During train operations, the contact surface between the pantograph slide and the catenary wire is subjected to mechanical friction and an electrical current, leading to an increase in the wear of the pantograph slide and a reduction in the service life of the pantograph–catenary friction pair. Therefore, the study of pantograph slide wear modeling and prediction is of great significance. This paper proposes a method to quantitatively characterize the wear of the pantograph slide by analyzing the energy dissipated through current-carrying friction in the pantograph–catenary system, from the perspective of the work done by the system. This study finds a significant linear relationship between the wear of the pantograph slide and the energy dissipated by current-carrying friction and establishes a mathematical model for pantograph slide wear based on energy dissipation, validating the effectiveness of the model. Furthermore, the relationship between the dissipated energy, contact current, contact pressure, and sliding speed is explored using experimental data, providing a quantitative explanation of the interaction between electrical and mechanical wear from an energy perspective. The wear morphology of the pantograph slide surface is further examined using metallographic microscopy, and the wear mechanism is analyzed. The applicability of the wear model is discussed, and it can be used for further studies on the current-carrying wear mechanisms in pantograph–catenary systems.
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LIAO, Qizheng. "Planar 5-Bar Pantograph Mechanism." Journal of Mechanical Engineering 51, no. 13 (2015): 116. http://dx.doi.org/10.3901/jme.2015.13.116.

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Wu, Qirui, Xiaohan Phrain Gu, Ziyan Ma, and Anbin Wang. "A Study on the Vibration Characteristics and Damage Mechanism of Pantograph Strips in a Railway Electrification System." Machines 10, no. 8 (2022): 710. http://dx.doi.org/10.3390/machines10080710.

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This paper presents the vibration characteristics of a pantograph–catenary interaction in a rigid catenary system. Both computational simulation and laboratory tests are carried out to evaluate the frequency contents of pantograph strips. Based on the observation that irregular wear is characterized by the consistency between the pantograph strips’ wear pattern and the mode shape of their dominant modal frequencies, it is deducted that resonance occurs at the pantograph strip and the contact wire interface in the high frequency range. By applying damping treatment to the pantograph strip, and hence improving its damping property, a reduction of 7 dB in the total vibration level at the sliding contact can be achieved, as verified through field tests. It is also found that the worse the initial condition of the pantograph–catenary system, the more prominent the damping effects on the control of high-frequency vibration for irregular wear problems.
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Kim, Jae Hyun, Bong Kyun Jang, Kyung Shik Kim, et al. "An Analysis of Non-Uniform Deformation of a Pantograph for Bellows Applications." Key Engineering Materials 452-453 (November 2010): 585–88. http://dx.doi.org/10.4028/www.scientific.net/kem.452-453.585.

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In this study, an analytical model is developed to analyze non-uniform deformation of a pantograph. The analytical model is verified by comparing predicted deformations with experimentally measured deformations of a pantograph. The effects of total displacement and gaps on non-uniformity are numerically simulated to provide the physical insight into the deformation mechanism of a pantograph. Design guidelines are suggested to minimize non-uniform deformation of a pantograph, and hence also of an associated bellows.
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J. Thamilarasan et al.,, J. Thamilarasan et al ,. "Design and Fabrication of Pantograph Mechanism." International Journal of Mechanical and Production Engineering Research and Development 8, no. 2 (2018): 955–64. http://dx.doi.org/10.24247/ijmperdapr2018110.

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Ji, Zhanling, Yi Guo, Dilong Guo, Guowei Yang, and Yubiao Liu. "Effects of Running Speed on Coupling between Pantograph of High-Speed Train and Tunnel Based on Aerodynamics and Multi-Body Dynamics Coupling." Applied Sciences 11, no. 21 (2021): 10008. http://dx.doi.org/10.3390/app112110008.

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(1) Background: The ratio of railway tunnel to line is larger, which produces tunnel entrance and exit effect, aerodynamic resistance, and sudden pressure changes. When the train passes through the tunnels at high-speed, the interaction between the pantograph on it and its surrounding air intensifies and the coupling effects between the pantograph and tunnel become more significant; (2) Methods: A coupling method between aerodynamics and multi-body dynamics is proposed based on hybrid meshing and grid motion. The layered grid motion method is combined with the viscous mesh deformation method with swift, effective data exchange. The significant coupling effects between the pantograph and tunnel are revealed; (3) Results: The influence laws and evolution mechanism of running speed as it affects important service characteristics and behaviors of the pantograph are accurately quantified. Noteworthy factors include the temporal characteristics of panhead aerodynamic lift, the contact force between the pantograph and catenary, vertical displacement and acceleration of the contact strip, the phase diagram of the contact strip, and various frequency-domain characteristics. The action mechanism of running speed on the coupling effect between the pantograph and tunnel is comprehensively and accurately revealed by the proposed method; (4) Conclusions: The larger service characteristics amplitudes of the high-speed pantograph appear at low frequencies and are not multiple frequencies of the basic frequency. By comparisons, the coupling calculation results are closer to the test results than the non-coupling results regardless of the maximum, minimum, or mean.
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Dissertations / Theses on the topic "Pantograph mechanism"

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Šumšal, Zdeněk. "Návrh výsuvné manipulační platformy mobilního robotu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-318529.

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This thesis is about the design of the telescopic platform. which should be fasten on robot called Breach. Purpose of this platform is to carry another equipment like sensors, cameras or manipulator. The platform has to provide chiefly the high demands on load capacity. Another part of the thesis is design of mechanism placed on this telescopic platform, or just on the robot Breach. This mechanism has to load up small subject on the top part of the platform and then unload it on chosen place. Only thing defined for this subjekt is maximal weight of 2 kilograms, but other parameters aren´t specified. Construction is therefore focused on maximal versatility of this mechanism.
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Jensen, Frank Vadstrup. "Concepts for retractable roof structures." Thesis, University of Cambridge, 2005. https://www.repository.cam.ac.uk/handle/1810/251952.

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Over the last decade there has been a worldwide increase in the use of retractable roofs for stadia. This increase has been based on the flexibility and better economic performance offered by venues featuring retractable roofs compared to those with traditional fixed roofs. With this increased interest an evolution in retractable roof systems has followed. This dissertation is concerned with the development of concepts for retractable roof systems. A review is carried out to establish the current state-of-the-art of retractable roof design. A second review of deployable structures is used to identify a suitable retractable structure for further development. The structure chosen is formed by a two-dimensional ring of pantographic bar elements interconnected through simple revolute hinges. A concept for retractable roofs is then proposed by covering the bar elements with rigid cover plates. To prevent the cover plates from inhibiting the motion of the structure a theorem governing the shape of these plate elements is developed through a geometrical study of the retractable mechanism. Applying the theorem it is found that retractable structures of any plan shape can be formed from plate elements only. To prove the concept a 1.3 meter diameter model is designed and built. To increase the structural efficiency of the proposed retractable roof concept it is investigated if the original plan shape can be adapted to a spherical surface. The investigation reveals that it is not possible to adapt the mechanism but the shape of the rigid cover plates can be adapted to a spherical surface. Three novel retractable mechanisms are then developed to allow opening and closing of a structure formed by such spherical plate elements. Two mechanisms are based on a spherical motion for the plate elements. It is shown that the spherical structure can be opened and closed by simply rotating the individual plates about fixed points. Hence a simple structure is proposed where each plate is rotated individually in a synchronous motion. To eliminate the need for mechanical synchronisation of the motion, a mechanism based on a reciprocal arrangement of the plates is developed. The plate elements are interconnected through sliding connections allowing them mutually to support each other, hence forming a self-supporting structure in which the motion of all plates is synchronised. To simplify the structure further, an investigation into whether the plate elements can be interconnected solely through simple revolute joints is carried out. This is not found to be possible for a spherical motion. However, a spatial mechanism is developed in which the plate elements are interconnected through bars and spherical joints. Geometrical optimisation of the motion path and connection points is used to eliminate the internal strains that occur in the initial design of this structure so a single degree-of-freedom mechanism is obtained. The research presented in this dissertation has hence led to the development of a series of novel concepts for retractable roof systems.
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NOGER, Christophe. "Contribution à l'étude des phénomènes aéroacoustiques se développant dans la baignoire et autour des pantographes du TGV. Approches expérimentale et numérique des écoulements affleurant une cavité et interactions non-linéaires de sillage entre deux cylindres." Phd thesis, Université de Poitiers, 1999. http://tel.archives-ouvertes.fr/tel-00006437.

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Cette étude s'inscrit dans le cadre du contrat franco-allemand DEUFRAKO K2 associant la SNCF et la DEUTSCH BAHN sur l'étude du bruit généré par les trains à grande vitesse. Une cavité rectangulaire peu profonde est d'abord placée dans une soufflerie bas-bruit. Les visualisations pariétales de l'écoulement et les mesures anémométriques montrent que l'écoulement se rattache sur le fond de la cavité et décolle à nouveau au passage du bord aval. Les plus fortes fluctuations de pression pariétale instationnaire (mesurées par microphones) sont aussi observées au niveau du bord aval, région dans laquelle l'intensimétrie 3D localise principales sources acoustiques. Le rayonnement acoustique révèle un spectre large bande sans phénomène de couplage entre les champs aérodynamique et acoustique. Une maquette réaliste de la baignoire à l'échelle 1/7e a ensuite été conçue et placée dans une soufflerie subsonique. Des visualisations pariétales de l'écoulement montrent une structure d?écoulement 3D très complexe. Les mesures de fil chaud indiquent une plongée très rapide de la couche de cisaillement amont vers le fond de la baignoire ainsi qu'un jet vertical intense au niveau du bord aval. Les coefficients de pression en paroi restent quasiment uniformes dans la baignoire. L'analyse spectrale révèle deux régions comportant des modes de résonance auxquels s'ajoute le STROUHAL des pantographes. L'influence des pantographes est enfin simulée via leur modélisation par deux cylindres circulaires, d'écartement et d'incidence variables, placés dans la soufflerie bas-bruit. Les expériences dévoilent de forts couplages aéroacoustiques non-linéaires (feedback) évoluant suivant ces deux paramètres. Les analyses spectrale et bispectrale de la pression acoustique mesurée en champ lointain (microphone) ainsi que les visualisations et les champs de vitesses obtenus par PIV contribuent à l'interprétation de ces phénomènes. Les expériences de chaque étude sont comparées à des simulations numériques.
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Peng, Jian-Yao, and 彭建堯. "Studies of the Dynamic Interaction between Catenary and Pantograph Systems - Pantograph as Linkage Mechanism." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/868m5c.

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Chen, Wei-Fan, and 陳威帆. "A Study on the Mechanism Design of the Planar Micro Compliant Pantograph." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/25549527371735305241.

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碩士<br>國立中山大學<br>機械與機電工程學系研究所<br>93<br>In the field of MEMS technology, all kinds of actuators are often regarded as the force source. However, some designs of actuators have good precision in position; the working distance to be driven is too short. Therefore, the actuator is often combined with a mechanism with displacement amplify function. The objective of this study is to synthesize the new pantograph mechanism using the concept of mechanism design according to the desirable motion and the requirement of the actuator. The cases of single degree-of-freedom and two degree-of-freedom are assumed simultaneously for the output of the basic design constraints so as to generate new pantograph mechanisms from the catalogue of kinematic chains. The suitable pantographs are then found out with the features such as: (1) single level plane using comb driver, (2) using compliant mechanisms as joints, and (3) suitable for MUMPs process. These constraints of design are considered as the procedures of process design, compliant mechanisms transformation, compliant joints design, actuator configurations design, FEM dynamic analysis and joint modifications. Finally, prototypes are evaluated and transform into planar micro compliant pantographs. Moreover, a test and a discussion of the displacement error are done under the consideration of the designed mechanism actuating using FEM analysis. The percentage of displacement error of planar micro compliant pantograph is defined, and the equation for estimating the percentage of displacement error is proposed so as to modify the motion error for controlling.
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Nagaraj, B. P. "Kinematic And Static Analysis Of Over-Constrained Mechanisms And Deployable Pantograph Masts." Thesis, 2009. https://etd.iisc.ac.in/handle/2005/1014.

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Foldable and deployable space structures refer to a broad category of pre-fabricated structures that can be transformed from a compact folded configuration to a predetermined expanded configuration. Such deployable structures are stable and can carry loads. These structures are also mechanisms with one degree of freedom in their entire transformation stages whether in the initial folded form or in the final expanded configuration. Usually, pantograph mechanisms or a scissor-like elements (SLEs) are part of such deployable structures. A new analysis tool to study kinematic and static analyses of foldable and deployable space structures /mechanisms, containing SLEs, has been developed in this thesis. The Cartesian coordinates are used to study the kinematics of large deployable structures. For many deployable structures the degree of freedom derived using the standard Grubler-Kutzback criteria, is found to be less than one even though the deployable structure /mechanism can clearly move. In this work the dimension of nullspace of the derivatives of the constraint equations are used to obtain the correct degrees of freedom of deployable structure. A numerical algorithm has been developed to identify the redundant joints /links in the deployable structure /mast which results in the incorrect degrees of freedom obtained by using the Grubler-Kutzback criteria. The effectiveness of the algorithm has been illustrated with several examples consisting of triangular, box shaped SLE mast and an eighteen-sided SLE ring with revolute joints. Further more the constraint Jacobian matrix is also used to evaluate the global degrees of freedom of deployable masts/structures. Closed-form kinematic solutions have been obtained for the triangular and box type masts and finally, as a generalization, extended to a general n-sided SLE based ring structure. The constraint Jacobian matrix based approach has also been extended to obtain the load carrying characteristics of deployable structures with SLEs in terms of deriving the stiffness matrix of the structure. The stiffness matrix has been obtained in the symbolic form and it matches results obtained from other commonly used techniques such as force and displacement methods. It is shown that the approach developed in this thesis is applicable for all types of practical masts with revolute joints where the revolute joint constraints are made to satisfy through the method of Lagrange multipliers and a penalty formulation. To demonstrate the effectiveness of the new method, the procedure is applied to solving (i) a simple hexagonal SLE mast, and (ii) a complex assembly of four hexagonal masts and the results are presented. In summary, a complete analysis tool to study masts with SLEs has been developed. It is shown that the new tool is effective in evaluating the redundant links /joints there by over coming the problems associated with the well –known Grubler-Kutzback criteria. Closed-form kinematic solutions of triangular and box SLE masts as well as a general n-sided SLE ring with revolute joints has been obtained. Finally, the constraint Jacobian based method is used to evaluate the stiffness matrix for the SLE masts. The theory and algorithms presented in this thesis can be extended to masts of different shapes and for the stacked masts.
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Nagaraj, B. P. "Kinematic And Static Analysis Of Over-Constrained Mechanisms And Deployable Pantograph Masts." Thesis, 2009. http://hdl.handle.net/2005/1014.

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Foldable and deployable space structures refer to a broad category of pre-fabricated structures that can be transformed from a compact folded configuration to a predetermined expanded configuration. Such deployable structures are stable and can carry loads. These structures are also mechanisms with one degree of freedom in their entire transformation stages whether in the initial folded form or in the final expanded configuration. Usually, pantograph mechanisms or a scissor-like elements (SLEs) are part of such deployable structures. A new analysis tool to study kinematic and static analyses of foldable and deployable space structures /mechanisms, containing SLEs, has been developed in this thesis. The Cartesian coordinates are used to study the kinematics of large deployable structures. For many deployable structures the degree of freedom derived using the standard Grubler-Kutzback criteria, is found to be less than one even though the deployable structure /mechanism can clearly move. In this work the dimension of nullspace of the derivatives of the constraint equations are used to obtain the correct degrees of freedom of deployable structure. A numerical algorithm has been developed to identify the redundant joints /links in the deployable structure /mast which results in the incorrect degrees of freedom obtained by using the Grubler-Kutzback criteria. The effectiveness of the algorithm has been illustrated with several examples consisting of triangular, box shaped SLE mast and an eighteen-sided SLE ring with revolute joints. Further more the constraint Jacobian matrix is also used to evaluate the global degrees of freedom of deployable masts/structures. Closed-form kinematic solutions have been obtained for the triangular and box type masts and finally, as a generalization, extended to a general n-sided SLE based ring structure. The constraint Jacobian matrix based approach has also been extended to obtain the load carrying characteristics of deployable structures with SLEs in terms of deriving the stiffness matrix of the structure. The stiffness matrix has been obtained in the symbolic form and it matches results obtained from other commonly used techniques such as force and displacement methods. It is shown that the approach developed in this thesis is applicable for all types of practical masts with revolute joints where the revolute joint constraints are made to satisfy through the method of Lagrange multipliers and a penalty formulation. To demonstrate the effectiveness of the new method, the procedure is applied to solving (i) a simple hexagonal SLE mast, and (ii) a complex assembly of four hexagonal masts and the results are presented. In summary, a complete analysis tool to study masts with SLEs has been developed. It is shown that the new tool is effective in evaluating the redundant links /joints there by over coming the problems associated with the well –known Grubler-Kutzback criteria. Closed-form kinematic solutions of triangular and box SLE masts as well as a general n-sided SLE ring with revolute joints has been obtained. Finally, the constraint Jacobian based method is used to evaluate the stiffness matrix for the SLE masts. The theory and algorithms presented in this thesis can be extended to masts of different shapes and for the stacked masts.
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Chen, Han-Chang, and 陳漢昌. "Structural Design of Large Pantograph Pick-Up Mechanisms for Stamping and Drawing Tooling." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/55774220508889126482.

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碩士<br>國立高雄應用科技大學<br>模具工程系碩士班<br>101<br>Based on the already existing concepts and approach for creative design of mechanisms, we focus on a systematic structural design of the large pantograph stamping die pick-up mechanism and provide all possible findings for the possible practical applications. First, the original large pantograph stamping die pick-up mechanism is identified and generalized. Thus, it becomes a mechanism, which is composed of one-dof low-pair joints only. Then we further find the design constraints and functional requirements of mechanism by reasoning mold and die characteristics. Second, all possible kinematic chains are found out by considering the design constraints and requirements. Third, we synthesize all possible structures of mechanisms having eight links and ten joints based on design constraints and generalized rules. Finally, their corresponding structural diagrams are enumerated. These derived mechanisms are also simulated with the help of Working Model 2D in order to confirm and verify the validity of the synthesized mechanisms. We offer some practical findings for the reference of development of any new large pantograph stamping die pick-up mechanism.
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Book chapters on the topic "Pantograph mechanism"

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Santamato, G., M. Gabardi, M. Solazzi, and A. Frisoli. "Approaches to the Detectability of Faults in Railway Pantograph Mechanism." In Mechanisms and Machine Science. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-48375-7_23.

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Stojiljković, Dušan, Lena Zentner, Nenad T. Pavlović, Sebastian Linβ, and René Uhlig. "Modeling, Design and Prototyping of a Pantograph-Based Compliant Mechanism." In Microactuators, Microsensors and Micromechanisms. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-61652-6_7.

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Zdziebko, Paweł, and Tadeusz Uhl. "Investigation on improving pantograph-catenary dynamic interaction employing multi-domain co-simulation approach." In Advances in Mechanism and Machine Science. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-20131-9_413.

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Yaşır, Abdullah, Volkert van der Wijk, and Just Herder. "Kinematic Synthesis of Fully Decoupled Planar Parallel Mechanisms by Using Multiple Pantograph Geometries." In Advances in Mechanism and Machine Science. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-45705-0_78.

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Saeed, Zakaria, Bahy Gabra, Mohamed Sallam, Wedad Refeay, and Soliman Sharaf. "Modeling and Control of a Pantograph Mechanism Interacting with the Environment." In Advances in Intelligent Systems and Computing. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-69717-4_67.

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Horie, Mikio, Toru Uchida, and Daiki Kamiya. "A Pantograph Mechanism With Large-Deflective Hinges for Miniature Surface Mount Systems." In Romansy 13. Springer Vienna, 2000. http://dx.doi.org/10.1007/978-3-7091-2498-7_9.

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Hai, Nguyen Dao Xuan, and Nguyen Truong Thinh. "An Efficient Pantograph Dynamic Mechanism for Massage Robot Arm Acting Therapy on Human Back." In The AUN/SEED-Net Joint Regional Conference in Transportation, Energy, and Mechanical Manufacturing Engineering. Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-1968-8_55.

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Horie, M., Y. Hoshikawa, and D. Kamiya. "Optimum Design of Mass Distribution of the Injection Molding Pantograph Mechanism with Constant Output Link Orientation." In Mechanisms and Machine Science. Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-2721-2_4.

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Durieux, Killian T. Y., and V. van der Wijk. "Inherently Balanced Spherical Pantograph Mechanisms." In Advances in Robot Kinematics 2024. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-64057-5_13.

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Tikhomirov, G. V., O. V. Egorova, G. A. Bazanchuk, and S. V. Kurakov. "The Pantograph: Rare Models and Application." In Explorations in the History and Heritage of Machines and Mechanisms. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-54876-5_22.

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Conference papers on the topic "Pantograph mechanism"

1

Nielson, Andrew J., and Larry L. Howell. "Compliant Pantographs via the Pseudo-Rigid-Body Model." In ASME 1998 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/detc98/mech-5930.

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Abstract This paper uses a familiar classical mechanism, the pantograph, to demonstrate the utility of the pseudo-rigid-body model in the design of compliant mechanisms to replace rigid-link mechanisms, and to illustrate the advantages and limitations of the resulting compliant mechanisms. To demonstrate the increase in design flexibility, three different compliant mechanism configurations were developed for a single corresponding rigid-link mechanism. The rigid-link pantograph consisted of six links and seven joints, while the corresponding compliant mechanisms had no more than two links and three joints (a reduction of at least four links and four joints). A fourth compliant pantograph, corresponding to a rhomboid pantograph, was also designed and tested. The test results showed that the pseudo-rigid-body model predictions were accurate over a large range, and the mechanisms had displacement characteristics of rigid-link mechanisms in that range. The limitations of the compliant mechanisms included reduced range compared to their rigid-link counterparts. Also, the force-deflection characteristics were predicted by the pseudo-rigid-body model, but they did not resemble those for a rigid-link pantograph because of the energy storage in the flexible segments.
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2

Shieh, W. B., L. W. Tsai, S. Azarm, and A. L. Tits. "A New Class of Six-Bar Mechanisms With Symmetrical Coupler Curves." In ASME 1996 Design Engineering Technical Conferences and Computers in Engineering Conference. American Society of Mechanical Engineers, 1996. http://dx.doi.org/10.1115/96-detc/dac-1491.

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Abstract A new class of six-bar mechanisms with symmetrical coupler-point curves is presented. This class of mechanisms is made up of a four-bar linkage with an additional dyad to form an embedded regular or skew pantograph. Because the coupler curve generated at an output point is amplified from that of a four-bar, a compact mechanism with a relatively large coupler curve can be obtained. In addition, due to their structure arrangement, the analysis and synthesis of such mechanisms can be easily achieved. It is shown that the admissible range of transmission angle for such mechanisms is smaller than that of a four-bar mechanism. It is also shown that mechanisms with an embedded skew pantograph exhibit better design flexibility than those with an embedded regular pantograph. Finally, an example mechanism from this class is illustrated and compared with a four-bar linkage with the same coupler curve.
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3

Gullyal, Avinash, Yasir Ahmed, Naga Chaithanya Amancharla, and Milind Kinjalkar. "Automated Charging Methodology for Fleet Operated EV Buses to Reduce Down Time and Increase Safety at Charging Station." In Symposium on International Automotive Technology. SAE International, 2024. http://dx.doi.org/10.4271/2024-26-0112.

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&lt;div class="section abstract"&gt;&lt;div class="htmlview paragraph"&gt;Prime concern for electric vehicle where the application of the vehicle is public transport, is the charging of vehicle and operation of its infrastructure. Such an example of operating the EV buses is under the GCC (gross cost contract) model, with high operation time and comparatively lesser time for charging. It is challenging to meet these requirements. To counter this situation in fleet operated busses it is proposed to adapt an automated charging method which involves minimum man power intervention and automated mechanism to connect &amp;amp; disconnect the charging connectors. This paper proposes an automated pantograph mechanism based method of charging EV buses, meeting requirements as per SAE J3105 &amp;amp; ISO 15118 standards, which would be an ideal way to resolve the current situation. In the above mentioned pantograph type charging, the charging station or depot will have an infrastructure including charger whose input will be from grid, and the charging dispenser will be pantographs particularly inverted type panto. The EV buses will have a pair of panto rails on the roof which will collect the power from inverted panto installed in charging station. Once the EV bus is under the vicinity of pantograph, wireless communication will be initiated. Once the vehicle is aligned and communication is established the pantographs will move down to make contact with rails on EV bus. The EV bus charging will be initiated meeting the ISO 15118 requirements. This automated mechanism of charging provides reduced charging duration because of high current carrying capacity, more operational hours of EV bus and increased safety due to less manpower involved. This overall improves profitability of business and safety.&lt;/div&gt;&lt;/div&gt;
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4

Hare`ll Poznic´, Pia, Jenny Jerrelind, and Lars Drugge. "Experimental Evaluation of Nonlinear Dynamics and Coupled Motions in a Pantograph." In ASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/detc2009-87246.

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Continuous electric power supply, which is transferred from the contact wire to the train through a pantograph mechanism, is a necessity for a train to function satisfactory. Since various sources of nonlinearities are present, such as friction in the pantograph suspensions and impacts in the subsystems and at the excitation, there is a possibility of nonlinear dynamic behaviour. The aim of this work is to experimentally investigate the dynamic behaviour of a commercial pantograph to verify if nonlinear behaviour and coupling effects can occur. A test rig has been built that has the ability to simulate both the horizontal and vertical excitation generated by the contact wire. Measurements have been performed for sinusoidal input signals both in horizontal and vertical directions. Harmonic and subharmonic motions as well as irregular behaviour are shown to exist in the system. The results show that the pantograph’s rotational degree of freedom, friction in the suspension systems and the nonlinear stiffness play an important role for the dynamic behaviour of the system and are therefore crucial to include when creating mathematical models of the system.
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5

Perreault, Simon, Philippe Cardou, and Cle´ment Gosselin. "Towards Parallel Cable-Driven Pantographs." In ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/detc2011-47751.

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We propose a new class of pantographs, i.e., of mechanisms that allow the reproduction of the displacements of an input link, the master, with an output link, the slave. The application we envision for these devices is the telemanipulation of objects from small distances, at low cost, where magnetic fields or other design constraints prohibit the use of electromechanical systems. Despite the long history of pantographs, which were invented in the 17th century, the class of pantographs proposed here is new, as it relies on parallel cable-driven mechanisms to transmit the motion. This allows the reproduction of rigid-body displacements, while previous pantographs were limited to point displacements. This important characteristic and others are described in the paper. One important challenge in the design of the proposed systems is that the cables must remain taut at all time. We address this issue by introducing nonlinear springs that passively maintain a minimum tension in the cables, while approximating static balancing of the mechanism over its workspace. Approximating static balancing allows the forces applied at the slave to reflect more accurately at the master, and vice versa. As a preliminary validation, a two-degree-of-freedom parallel cable-driven pantograph is designed. A prototype of this apparatus that does not include approximate static balancing is built, which demonstrates the working principle of these mechanisms.
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6

Fedorov, Dmitri, and Lionel Birglen. "Analysis and Design of a Two Degree of Freedom Hoeckens-Pantograph Leg Mechanism." In ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/detc2015-47330.

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Hoeckens and Chebychev linkages have been widely discussed in the literature as design solutions to build single degree of freedom (DOF) leg mechanisms. Compared to fully actuated legs, often bio-inspired, they offer an unmatched simplicity. However, due to their limited motion capability, they can only be used when the traversed terrain is of limited difficulty. In order to alleviate this drawback, a novel design with a second DOF is proposed in this paper. The introduced mechanism is composed of a Hoeckens linkage augmented by a Pantograph for which the position of the pivot can be changed through an additional rotating link. Screw theory is used to determine the kinematic equations of the mechanism, its singular configurations, and its attainable workspace. Subsequently, an optimization of the geometric parameters is performed to maximize performance indices pertaining to the size of the mechanism’s workspace. Finally, possible use of compliant joints is discussed.
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7

Gritti, M. G., H. Giberti, and A. Collina. "Optimal synthesis of a cam mechanism for train pantograph." In 2013 IEEE International Conference on Mechatronics (ICM). IEEE, 2013. http://dx.doi.org/10.1109/icmech.2013.6518571.

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8

Merriam, Ezekiel G., Mark Colton, Spencer Magleby, and Larry L. Howell. "The Design of a Fully Compliant Statically Balanced Mechanism." In ASME 2013 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/detc2013-13142.

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This paper describes a fully compliant statically balanced mechanism that can undergo greater than 100° of motion. Because compliant mechanisms achieve their motion from the deflection of their constituent members, there is some strain energy associated with actuated positions. By introducing an appropriate preload, strain energy can be held constant. This can reduce or nearly eliminate the input force required from the actuating device. This paper describes the statically balanced concept and demonstrates its optimization, testing, and implementation for a haptic pantograph mechanism. The statically balanced properties of the constituent mechanisms result in an assembly with two balanced degrees of freedom.
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9

Wind, Nur Alyani Fakharulrazi, Fitri Yakub, Mohamed Sukri Mat Ali Wind, Pauziah Muhamad, Sheikh Ahmad Zaki, and Zul Hilmi Che Daud. "Active Control of a Pantograph Mechanism for High Speed Rail System." In 2019 IEEE 9th International Conference on System Engineering and Technology (ICSET). IEEE, 2019. http://dx.doi.org/10.1109/icsengt.2019.8906301.

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10

Hara, Naohiro, Kazuo Tanaka, Hiroshi Ohtake, and Hua O. Wang. "Development of a Flying Robot with Pantograph-based Variable Wing Mechanism." In 2007 IEEE International Conference on Robotics and Automation. IEEE, 2007. http://dx.doi.org/10.1109/robot.2007.363811.

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