2自由度柔性构件运动特性研究  

Research on the Motion Characteristics of 2-DOF Compliant Link

作　　者：夏尊凤[1] 戴娟[1] 

机构地区：[1]长沙学院机电工程系,湖南长沙410003

出　　处：《机械设计与制造》2013年第2期235-237,共3页Machinery Design & Manufacture

基　　金：湖南省自然科学基金(10JJ334);长沙学院科研基金(SF080201)

摘　　要：提出一种在工程应用中既产生弯曲变形又产生拉伸变形的2自由度柔性构件的伪刚体模型分析方法,讨论单一弯曲自由度柔性构件和2自由度柔性构件不同的变形特点,2自由度柔性构件的变形运动是弯曲运动和轴向直线拉伸运动的复合运动,柔性构件与刚性构件连接处的角变形不为零,而是θ角度,在分析2自由度柔性构件运动特点的基础上,建立具有扭转弹簧常数K1和轴向拉伸弹簧常数K2来模拟其变形能力的伪刚体模型,进行了2自由度柔性构件最大应力分析,并给出一个工程应用示例。Analytical method of pseudo-rigid-body model of 2-DOF compliant link,which produce bending deflection and stretcher strain in engineering is proposed.Deformation characteristics is discussed about 1-DOF bending complint link and 2-DOF compliant link.Deformation movement of 2-DOF compliant links is compound movement of bending deflection and stretch movement.Angular deformation of joint on compliant link and rigid link isn't zero,but θ.Pseudo-rigid-body model is builded based on analysing motion characteristics of 2-DOF compliant link,and this model have torsional spring constants K1 and axial tension spring constants K2 simulating deformability.Maximum stress of 2-DOF compliant link is analysised.And a engineering example is presented.

关 键 词：2自由度柔性构件 伪刚体模型 运动特性 

分 类 号：TH16[机械工程—机械制造及自动化]