A study on planar mechanism with joint clearance and fragmentation by Motion Analysis of Structure method
Date Issued
2008
Date
2008
Author(s)
Liao, Yi-Hsiang
Abstract
In this work, we present a study on planar mechanism with joint clearance and fragmentation by Motion Analysis of Structure method (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. The engineering problems of joint clearance and fragmentation have been investigated throughout this work. We use MAS combining with Hertz’ contact method to simulate either rigid or flexible mechanisms with joint clearance. Also, we use MAS as an algorithm to handle the fragmentation behavior which the process if achieved by incorporating the ability to create new node or new element according to a defined failure criterion.
Subjects
Motion analysis, VFIFE, Joint clearance, Fragmentation,Time integration
Type
thesis
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