考虑压电材料非线性特性时旋转式超声电机定子的主共振响应  

Primary Resonance of the Stator of Rotary Ultrasonic Motor Considering Nonlinearity of Piezoelectric Material

作　　者：高健[1] 曹树谦[1] 

机构地区：[1]天津大学机械工程学院力学系,天津300072

出　　处：《非线性动力学学报》2005年第1期66-78,共13页

基　　金：国家自然科学基金（10472079）资助项目

摘　　要：考虑压电材料非线性本构关系，建立了旋转式超声电机定子的非线性动力学模型，利用解析与数值方法研究超声电机定子的主共振响应，以揭示压电材料非线性本构关系对定子振动特性的影响，为深入研究旋转行波超声电机的动力学机理奠定基础．A nonlinear dynamic model of the stator of ultrasonic motor was established while considering the nonlinear constitutive relations of piezoelectric materials, Analytical and numerical methods were used to analyze the primary resonance of the stator of ultrasonic motor. The relationship between characteristics of the solution and parameters of the stator was given and the results make a foundation for further study of rotary traveling wave ultrasonic motor.

关 键 词：压电超声电机 非线性 本构关系 主共振 分岔 

分 类 号：O322[理学—一般力学与力学基础] TM38[理学—力学]