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Flexible Multibody Model of Desmodromic Timing System#
Mechanics Based Design of Structures and Machines, 2009Abstract In the present study, the authors performed a dynamic analysis of the desmodromic timing system, where the valve lifter is realized by conjugate cams, using a methodology of modal synthesis to examine the effects of the deformability of the principal parts, and evaluating the deformations and vibrations of the components under various ...
Oliveri, Salvatore +2 more
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Symbolic computations in flexible multibody systems
Nonlinear Dynamics, 1996The need for computer aided engineering in the analysis of machines and mechanisms led to a wide variety of general purpose programs for the dynamical analysis of multibody systems. The use of more lightweight structures and an increasing demand of high-precision mechanisms, such as robots, led to the incorporation of flexible bodies in this ...
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Describing Rigid-Flexible Multibody Systems Using Absolute Coordinates
Nonlinear Dynamics, 2003zbMATH Open Web Interface contents unavailable due to conflicting licenses.
García-Vallejo, D. +3 more
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Simulation of Wheels in Nonlinear, Flexible Multibody Systems
Multibody System Dynamics, 2002The authors present the modeling of wheels within the framework of nonlinear flexible multibody systems. The elastic bodies are modeled using the finite element method, and holonomic and nonholonomic constraints among bodies are enforced via Lagrange multipliers.
Bauchau, Olivier, Rodriguez, J.
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Transfer matrix method for linear vibration analysis of flexible multibody systems
Journal of Sound and Vibration, 2023Hanjing Lu, X. Rui, Xuping Zhang
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Vibrations analysis of flexible multibody systems
Dynamics and Stability of Systems, 1991This paper is the continuation of a previous work (Pascal, 1988a) in which we consider the dynamical analysis of flexible space vehicles modelled by a chain of rigid and elastic bodies with tree structure. The multibody system consists of n + 1 bodies (S$iiei:) (i = 0, 1,…n) interconnected by n hinges la (a = 1,…n). The only external forces and torques
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System-Level Modal Representation of Flexible Multibody Systems
Volume 4: 7th International Conference on Multibody Systems, Nonlinear Dynamics, and Control, Parts A, B and C, 2009The presence of both differential and algebraic equations in the model equations, as well as the number of degrees of freedom needed to accurately represent flexibility, prohibit fast simulation of flexible multibody systems (e.g. real-time). In this research, Global Modal Parametrization, a model reduction technique for flexible multibody systems is ...
Gert H. K. Heirman, Wim Desmet
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Optimization of Flexible Multibody Systems
2009The design process of road vehicles, very often based on intuition and experience, can be greatly enhanced through the use of generalized optimization techniques. In a first application, the vehicle optimum design is achieved through the use of an algorithm with finite differences sensitivities.
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Flexibility effects in multibody system dynamics
Mechanics Research Communications, 1980During the past f ive years there has been an increasing interest in the development of computer oriented methods for studying the dynamics of multibody systems. A "multibody system" as discussed herein, is defined as an "open-tree" or "open-chain" of connected r igid bodies such that adjacent bodies share at least one common point and such that no ...
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