不完全分布柔度全柔性机构拟柔性模型研究  

Imitate-compliant-body Model for Fully Compliant Mechanisms of Incomplete Distributed Compliance

作　　者：邱丽芳[1] 翁海珊[1] 俞必强[1] 代云升[1] 

机构地区：[1]北京科技大学机械工程学院,北京100083

出　　处：《农业机械学报》2009年第4期189-192,共4页Transactions of the Chinese Society for Agricultural Machinery

基　　金：教育部科学技术研究重点资助项目(106018)

摘　　要：不完全分布柔度全柔性机构是介于具有集中柔度和分布柔度之间的一类全柔性机构,根据这类机构的特点,在伪刚体模型的基础上,提出了拟柔性模型的分析方法,建立了直梁型柔性铰链与构件的拟柔性模型,同时定义了拟柔性模型的外载荷力比值系数μF和模型的修正系数μλ。给出了一组实例的拟柔性模型计算结果,通过该组实例的实验测试以及对测试结果和计算结果的分析比较,验证了该模型的有效性。Fully compliant mechanism of incomplete distributed compliance is a kind of new compliant mechanism whose compliance is between lumped and distributed. According to the characteristic of this compliant mechanism, a new analyzing model based on pseudo-rigid-body model named imitatecompliant-body model was presented. The imitate-compliant-body model of rectangular flexure hinge and link was established. The coefficient of load ratio μF and correct coefficient μλ of the model were also defined. Finally the results of five samples using the imitate-compliant-body model were presented. Through the experimental test of the five samples and the compare of the results with computer and test, the validity of this model was proved.

关 键 词：全柔性机构 伪刚体模型 拟柔性模型 不完全分布柔度 

分 类 号：TH122[机械工程—机械设计及理论]