CAJ | 학술논문

基于蠕动式直线驱动器的工作原理，引入三角放大结构，设计一款单向直线被动箝位压电驱动器。该驱动器由驱动和保持箝位体、驱动体和导轨等组成，其箝位体采用三角放大结构，有效提高箝位体压电叠堆的输出位移，箝位体在通电状态下可解除对导轨的箝位，在断电状态下可自锁导轨。利用机械振动能量法，建立驱动器主要结构的数学模型，研究驱动体和箝位体结构参数对等效刚度和响应频率的影响，借助于有限元仿真分析和试验，验证数学模型所设计的结构参数的有效性，测试驱动器负载特性以及不同载荷下的动态响应频率。
기우연동식직선구동기적공작원리，인입삼각방대결구，설계일관단향직선피동겸위압전구동기。해구동기유구동화보지겸위체、구동체화도궤등조성，기겸위체채용삼각방대결구，유효제고겸위체압전첩퇴적수출위이，겸위체재통전상태하가해제대도궤적겸위，재단전상태하가자쇄도궤。이용궤계진동능량법，건립구동기주요결구적수학모형，연구구동체화겸위체결구삼수대등효강도화향응빈솔적영향，차조우유한원방진분석화시험，험증수학모형소설계적결구삼수적유효성，측시구동기부재특성이급불동재하하적동태향응빈솔。
Based on the principle of linear inchworm motor, a kind of unidirectional inverse clamping linear inchworm motor with triangulation amplification is proposed. It is composed of two clamping bodies, driving body and guide. The output displacement of the piezoelectric in clamping body is amplified by triangulation amplification. The guide is released under powering on and locked under power off. The mathematic model of inchworm motor is modeled by energy method in the field of mechanical vibration. The influences on the natural frequencies of driving body and clamping body by structural parameters are analysed. The structural parameters calculated in mathematic model are proved by finite element method(FEM) and experiments. The dynamic respond frequencies are tested with different loads.