Motion Analysis of Structures for three dimensional mechanisms
Date Issued
2007
Date
2007
Author(s)
Chen, Jon-En
DOI
zh-TW
Abstract
In this work, we present a study on the analysis of space motion of beams employing a particle method of Motion Analysis of Structures (MAS). The MAS method is based on a vector form of mechanics which discretizes a continuous body into a set of particles described by the Newton’s laws. The interactions among those particles are defined by the element forces formulated by a vector-form intrinsic finite element (VFIFE) so that the elements with large rotation can be successfully handled. A general three dimensional problem has been investigated throughout this work which is more challenging then 2D problems since not only the rotation or displacement but also the types of joints applied to the objects need to be considered. The governing equations describing the motions of both ball and revolute joints are first derived and then the MAS approach is applied in the simulation. Simulation results show the superior performance of the proposed method comparing to other works in the literature.
Subjects
向量式有限元
運動解析
撓性機構
三維機構
Motion analysis
Space mechanism
VFIFE
Joint
Type
thesis
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