期刊
MECHANISM AND MACHINE THEORY
卷 80, 期 -, 页码 151-165出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.mechmachtheory.2014.06.005
关键词
Distributed compliant parallel-guiding mechanism; Elastic beam theory; Parasitic rotation; Deflection; Pseudo-rigid-body model; Finite element method
资金
- National Natural Science Foundation of China [50975067]
Distributed compliant parallel-guiding mechanism (CPGM) is a particular type of compliant mechanisms. This paper establishes a new mathematical model of the distributed-CPGM based on the elastic beam (EB) theory with an increasing precision discussed from three different situations. In situation C, both the parasitic rotation and deflection of the guiding plate are taken into account, which might be tiny but do exist in reality. As for a relatively fair comparison, a more effective pseudo-rigid-body (PRB) model than the simplified traditional PRB model is also established. Then the guiding displacement, parasitic displacement and parasitic angle in the three situations are analyzed at different distances between two compliant beams, which have not been involved by any former researchers. Furthermore, the relations between the displacements and some other structural parameters are analyzed respectively comparing with the finite element method. The results indicate that the EB model in situation C is very effective with a much higher precision than other models, although the computation is more complicated. Our work could be a reference and supplement to the design and manufacture of the current distributed-CPGM. (C) 2014 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据