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首页> 外文期刊>JSME International Journal. Series C, Mechanical Systems, Machine Elements and Manufacturing >Multiport Models for Dynamics of Flexible Multibody Systems
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Multiport Models for Dynamics of Flexible Multibody Systems

机译：柔性多体系统动力学的多端口模型

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摘要

The paper presents a multiport model of flexible multibody systems by analogy with a connection multiport in electrical circuit theory. First we introduce a concept of a fundamental pair, that is, a pair of a mechanical joint and its adjacent body to recognize the flexible multibody system as an interconnected system of such fundamental pairs. Second we employ a finite element model to describe flexible deformations associated with large overall motions using moving frames and we also model various kinematical and dynamical relations of the fundamental pair such as geometric nonlinear effects associated with the flexible deformations and kinematical constraints due to the mechanical joint by nonenergic multiports together with dual connection matrices. Finally it is shown that the interconnection of the nonenergic multiports with physical elements provides a multiport model of the fundamental pair and also that the equations of motion of the flexible multibody system can be systematically formulated by the present approach.
机译：类似于电路理论中的连接多端口，本文提出了一种柔性多体系统的多端口模型。首先，我们引入基本对的概念，即一对机械接头及其相邻实体，以将柔性多体系统识别为此类基本对的互连系统。其次，我们采用有限元模型来描述与使用移动框架进行的大的整体运动相关的柔性变形，并且还对基本对的各种运动学和动力学关系进行建模，例如与柔性变形相关的几何非线性效应以及由于机械接头而产生的运动学约束。通过非能量多端口以及双连接矩阵实现。最终表明，非能量多端口与物理元件的互连提供了基本对的多端口模型，并且通过本方法可以系统地制定柔性多体系统的运动方程。

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