集中柔度全柔性机构变形分析及仿真  

Analysis and simulation of the deflection of lumped complete compliant mechanism

作　　者：邱丽芳[1] 柳林[1] 南铁玲[1] 

机构地区：[1]北京科技大学机械工程学院,北京100083

出　　处：《机械设计与制造》2008年第7期49-51,共3页Machinery Design & Manufacture

基　　金：教育部科学技术研究重点项目(106018)

摘　　要：柔性铰链四杆机构在精密机械中的应用日益广泛。采用伪刚体模型法对具有集中柔度的全柔性铰链四杆机构进行了分析,利用MATLAB编写了外载荷与杆件转角关系的Newton迭代法程序。同时用有限元方法建立了全柔性铰链四杆机构模型,并用ANSYS进行了仿真。给出了两种方法的计算实例,对所得结果进行了讨论,分析了误差产生的原因。Four-bar flexure hinge mechanisms are extensive in the application in the precise machine day by day. A four-bar flexure hinge mechanism with pseudo-rigid-body model method is analyzed in this paper,the relationship between loads and the angular deflection of the bars is educed,and NewtonRaphson method program is written in MATLAB. The four-bar flexure hinge mechanism is modeled with finite element method,and then simulated by ANSYS. The calculation of an example is given. The result of the two methods is discussed,and the reasons which cause the error are analyzed.

关 键 词：柔性铰链 四杆机构 伪刚体模型 ANSYS仿真 

分 类 号：TH122[机械工程—机械设计及理论]