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Wang Yong Cheung Hongman Edmund Dept of Manufacturing Engineering Management Engineering City University of Hong Kong Zhang Wenjun University of Saskatchewan Canada 《机械工程学报(英文版)》1999,12(2)
0INTRODUCTIONManymodelsforthegearsystemcontainingonlygears,shaftsandbearingshavebeendevelopedfortheinvestigationandpredicati... 相似文献
23.
建立了斜齿行星传动的多体动力学模型,对其进行了动态特性仿真,获知了该类系统的自由振动特性、稳态动力响应以及部分设计参数对系统动态特性的影响规律。根据系统特征值的重根数、中心构件的振型坐标及各行星轮间振型坐标的比例,将斜齿行星轮系的自由振动归结为3类典型振动模式,即:轴向平移—扭转振动模式、径向平移—扭摆振动模式和行星轮振动模式,并进一步给出了各类模式的特点。当不考虑构件自身柔性时,基于多体动力学模型的自由振动特性与前人的集中参数模型的仿真结果完全一致,表明了本文所建模型的正确性。斜齿行星轮系的稳态动力学响应表明,内、外啮合力在一个啮合周期内围绕静态均值作较大幅度的波动,而啮频激励是引起该类系统振动的主要原因。参数影响分析表明,构件支承刚度和行星轮周向安装误差对系统动态特性的影响明显,浮动太阳轮、严控行星轮周向安装误差可有效抑制系统的振动。 相似文献
24.
Hiroyuki Sugiyama Kohei Araki Yoshihiro Suda 《Journal of Mechanical Science and Technology》2009,23(4):991-996
An on-line and off-line hybrid contact algorithm for modeling wheel/rail contact problems is developed based on the elastic
contact formulation. In the hybrid algorithm developed in this investigation, the off-line tabular search is used for predicting
the location of tread contact points, while the on-line iterative search is used for predicting flange contact points. By
so doing, a computationally efficient procedure is achieved while keeping accurate predictions of contact points for severe
contact scenarios such as sharp curve and turnout negotiations. The use of the proposed hybrid algorithm can eliminate the
time-consuming on-line iterative search for the second points of contact. Since the location of the second point of contact
is pre-computed by the contact geometry analysis, the occurrence of two-point contact can be predicted by using the look-up
table at the one-point contact configuration. A flange climb simulation demonstrates that the proposed hybrid contact search
algorithm can be effectively used for modeling wheel/rail contacts in the analysis of general multibody railroad vehicle systems.
This paper was presented at the 4th Asian Conference on Multibody Dynamics(ACMD2008), Jeju, Korea, August 20–23, 2008.
Hiroyuki Sugiyama received his Ph.D. from the University of Illinois at Chicago in 2005. Dr. Sugiyama is currently an Assistant Professor at
Tokyo University of Science, Tokyo, Japan. His research interests include the development of computer formulations for contact
problems in vehicle systems and the large deformation problems of constrained multibody systems.
Kohei Araki received his BS degree in Mechanical Engineering from Osaka City University in 2006. Mr. Araki is currently a Master’s student
at Osaka City University, Osaka, Japan. His research interest is in the modeling of wheel/contact problems in railroad vehicle
dynamics.
Yoshihiro Suda received his Doctoral degree from the University of Tokyo in 1987. Dr. Suda is currently a Professor at the University of
Tokyo, Tokyo, Japan. His research interests are in the dynamics of railroad vehicles and automobiles, in-telligent transportation
systems (ITS) and personal mobility vehicles. He is currently serving as an Associate Editor of the IMechE Journal of Multi-Body
Dynamics. 相似文献
25.
Florian Fleissner Vincenzo D’Alessandro Werner Schiehlen Peter Eberhard 《Journal of Mechanical Science and Technology》2009,23(4):968-973
The driving stability of silo vehicles is significantly affected by the type of cargo that is transported and the design of
the tank. Cargo motion can have both beneficial and negative aspects in terms of driving stability and braking performance.
Neglecting the influence of the dynamically moving cargo in driving simulations of silo vehicles leads to significant errors
in the simulation results. We propose a new method for the dynamic simulation of silo vehicles carrying granulates. The method
couples Lagrangian particle methods, such as the discrete element method, and multibody systems methods using co-simulations.
We demonstrate the capability of the new approach by providing simulation results of two benchmark maneuvers.
This paper was presented at the 4th Asian Conference on Multibody Dynamics(ACMD2008), Jeju, Korea, August 20–23, 2008.
Florian Fleissner received his Dipl.-Ing. degree in Mechanical Engineering from the University of Erlangen, Germany, in 2003. He is currently
working as research and teaching assistant, completing his Ph.D. in Mechanical Engineering at the Institute of Engineering
and Computational Mechanics at the University of Stuttgart, Germany.
Vincenzo D’Alessandro graduated in 2008 in Mechanical Engineering at the Politecnico di Milano, Italy. He is currently working as a Ph.D. candidate
in Mechanical Engineering at the department of mechanical engineering at the Politecnico di Milano.
Werner Schiehlen was educated as a mechanical engineer and received a Ph.D. on satellite dynamics in 1966. After working for 10 years with
the Technical University Munich and spending one year with NASA in the US he was appointed full professor of mechanics with
the University of Stuttgart until his retirement in 2002. He published more than 320 scientific papers in applied and computational
dynamics including 7 books mostly translated in foreign languages, too. Werner Schiehlen served as President of IUTAM. Since
1997 he is Editor-in-Chief of the international journal MULTIBODY SYSTEM DYNAMICS.
Peter Eberhard received his Dipl.-Ing. in Mechanical Engineering, his Dr.-Ing. and his Habilitation in Mechanics from the University of
Stuttgart in Germany. In 2000 he was appointed as Professor of Mechanics and System Dynamics at the University of Erlangen-Nuremberg
before he became 2002 Full Professor and Director of the Institute of Engineering and Computational Mechanics at the University
of Stuttgart. In 2000 he received the Richard-von-Mises award and in 2007 an Honorary Professorship at the Nanjing University
of Science and Technology, P.R. China. His research interests include multibody dynamics, contact mechanics, mechatronics,
optimization and biomechanics. 相似文献
26.
Sung-Soo Kim Oskar Wallrapp Jeong Joo Kwon Do Hyun Kim Diana Wachter 《Journal of Mechanical Science and Technology》2009,23(4):1065-1070
A 6-axis motion simulator has been developed, in order to regenerate UGV (unmanned ground vehicle) motion and to test the
stabilization system of the mobile surveillance robot that is mounted on the UGV. For developing the 6-axis motion simulator,
a simulation-based design procedure was introduced. The 3D geometric model of the motion simulator was created by using 3D
CAD modeler ProE. The multibody dynamics model of the motion simulator has also been created by using the general purpose
dynamic analysis program ADAMS to validate the design of the motion simulator. Dynamics and control co-simulation model for
the motion simulator has been also established for control performance analyses. Actual hardware of the motion simulator has
been fabricated based on the proposed simulation based design. Hardware test of the motion simulator has been tried to validate
the design.
This paper was presented at the 4th Asian Conference on Multibody Dynamics(ACMD2008), Jeju, Korea, August 20–23, 2008.
Oskar Wallrapp was awarded a Ph.D. degree in Mechanical Engineering at the Technical University of Berlin, Germany in 1989. Dr. Wallrapp
is currently a Professor in the Department of Precision and Micro Engineering, Muenchen University of Applied Science, Munich,
Germany. His research interests are mechanism analysis and design, robotics, and bio-mechanics.
Sung-Soo Kim received a Ph.D. degree in Mechanical Engineering from the University of Iowa in 1988. Dr. Kim is currently a Professor in
the Department of Mechatronics Engineering at Chungnam National University in Daejeon, Korea. His research interests are real-time
multibody formulation and its application to the automotive systems and military robot systems. 相似文献
27.
Dong Hwan Choi Jonathan A. Wickert Hong Hee Yoo 《Journal of Mechanical Science and Technology》2008,22(9):1747-1756
A general formulation is developed for the tolerance analysis of dynamic equilibria in a multibody system undergoing prescribed
rotational motion, with applications including robots, spacecraft, propulsion and power generation systems, and sensors and
actuators. In a state of dynamic equilibrium, a subset of the generalized coordinates assumes constant values while the remaining
coordinates vary and respond in time. Manufacturing tolerances can be mathematically represented by probabilistic distributions
or statistical variables through either an analytical approach or a Monte Carlo simulation. In the present tolerance work,
the tolerances of design parameters including lengths, stiffnesses, inertias, and attachment positions are examined. In order
to analytically calculate the statistical response of the dynamic equilibrium positions to such tolerances, the first-order
sensitivities of the equilibria with respect to parameters are calculated. To illustrate the method’s accuracy and computational
efficiency, two numerical examples are considered, and the statistical results obtained analytically for the equilibria are
compared with those calculated through Monte Carlo simulation. In some cases, an equilibrium configuration can have an operating
condition for which the response has zero standard deviation to perturbations of a design parameter. That condition can be
a useful design point to the extent that typical manufacturing tolerances or other sources of variation would have no effect
on the dynamic equilibrium configuration. 相似文献
28.
An efficient support for computational technology and information management will be critical in future Engineering Information Systems (EIS). This paper shows how it is possible to provide efficient data management capabilities to the discipline of Multibody System (MBS) analysis. The MECHAMOS prototype of a MBS analysis tool has been developed that is based on an object-relational database management system, AMOS, which has been extended with additional mathematical functionality by the use of Matlab and MapleV as computational engines. The MBS model is represented as a database model in AMOS and the analysis is based on symbolic formulation of Kane's equations of motion. With this configuration, data is made fully accessible via the AMOSQL query language of AMOS. Furthermore, by providing the MBS application with general database technology, the data management will be more efficient in terms of handling large amounts of data and the development and maintenance of MBS analysis systems. Since MBS models are represented in a “neutral format”, the reusability of these models increases and they will be more persistent to changes in the EIS environment. 相似文献
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