Analysis of characteristics of an ultrasonic motor in shock environment
SUN Dong1,TANG Yu-juan2,WANF Jiong1,WANG Xin-jie1
1.School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China;
2.School of Intelligent Science and Control Engineering, Jinling Institute of Technology, Nanjing 211169, China
Abstract:The influence of shock environment on an ultrasonic motor was studied.The dynamic response of the ultrasonic motor under different impact load was analyzed based on the finite element method.The material model of key components was bilinear isotropic hardening model during the analysis process.The influence of shock environment on mechanical characteristic of the ultrasonic motor and vibration characteristic of stator was analyzed via experiment.The analysis results show that the deformation of the rotor can be divided into two states, the sinkage of rotor’s center and twisting of rotor.Bsides the amplitude, the impact duration also has influence on the deformation of the structure.The vibration characteristic of stator will have distortion besides the reduction of mechanical characteristic of the ultrasonic motor in shock environment.Rubber can protect the ultrasonic motor in shock environment effectively.
孙栋1,唐玉娟2,王炅1,王新杰1. 超声电机在冲击环境中的性能研究[J]. 振动与冲击, 2019, 38(20): 44-50.
SUN Dong1,TANG Yu-juan2,WANF Jiong1,WANG Xin-jie1. Analysis of characteristics of an ultrasonic motor in shock environment. JOURNAL OF VIBRATION AND SHOCK, 2019, 38(20): 44-50.
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