Traveling wave piezoelectric beam actuators(TWPBAs)present an advantageous structural configuration for self-moving actu-ators and hold significant promise for operation in confined spaces.However,current research on TWPBAs faces several lim-itations,including deficient design methods of excitation and structural parameters,inadequate evaluation metrics,and lack of a quantitative relationship between these parameters and evaluation metrics.This study presents a systematic approach to de-termining TWPBAs'structure and excitation parameters,proposes criteria for determining the excitation parameters through an established analytical model,and introduces an effective evaluation method for TWPBAs'driving.Through the analytical model and evaluation metrics,we reveal:(1)the coupling relationship between excitation parameters and structural parameters,(2)the influence of participating mode pairs on vibration response,(3)the quantitative relationship between the evaluation metrics and excitation parameters is also revealed.These conclusions are substantiated by the results of finite element analysis,laser vibration measurements,and motion test experiments.Notably,the practical application of TWPBAs in pipeline operations underscores their potential for use in endoscopy and precision instruments.
关键词
Piezoelectric actuator/Exciter-Exciter method/Wave propagation/Vibration control
Key words
Piezoelectric actuator/Exciter-Exciter method/Wave propagation/Vibration control
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基金项目
National Natural Science Foundation of China(12025201)
National Natural Science Foundation of China(11890681)
National Natural Science Foundation of China(12102007)
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