Design and Modelling of a Generic Compliant Mechanism with Bi-stability and Static Balancing

Jiaxiang Zhu, Guangbo Hao, Hui Tang
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Abstract

This article presents two new compliant mechanisms that are able to achieve bi-stability and static balancing where the improved motion characteristics and reduced footprint can be obtained. One design is a single-layer symmetrical design, and the other design is a two-layer compact design. Static balancing is accomplished by adjusting the initial slope of the beam embodied in the bistable mechanism. The free-body diagram (FBD) combined with the beam constraint model (BCM) method is employed to capture the nonlinearities in the force-displacement characteristics of the proposed compliant bistable mechanism. Nonlinear Finite element analysis (FEA) is carried out to verify the modelling results.
具有双稳定和静态平衡的通用柔性机构的设计与建模
本文提出了两种新的柔性机构,能够实现双稳定和静态平衡,从而改善运动特性并减少占地面积。一种设计是单层对称设计,另一种设计是双层紧凑设计。静平衡是通过调整双稳机构中梁的初始斜率来实现的。采用自由体图(FBD)和梁约束模型(BCM)相结合的方法来捕捉柔性双稳机构的力-位移特性的非线性。通过非线性有限元分析(FEA)对模型结果进行了验证。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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