旋转型行波超声电机瞬态响应能力的试验研究

摘要

Aiming at transient characteristics and mechanism of traveling wave type rotary ultra-sonic motor(TRUM)with inertia load,a dynamics model was derived,which could describe its re-sponse characteristics.From the power transmission mechanism point of view,response characteristics of the speed step of TRUM were analyzed.By means of transient characteristics experiments the effects of the step amplitude and inertia different loads on the step response time were evaluated.The experimental system for transient characteristics of TRUM was built,and the transient rotation speed response characteristics of TRUM with inertia loads were measured.The experimental results show that the transient response of TRUM can fulfill the requirements under special circumstances.%针对惯量负载下旋转型行波超声电机的瞬态特性及变化规律，建立了描述超声电机响应特性的动力学模型，从动力传递机理的角度分析了超声电机的转速阶跃响应特性。通过试验分析评估了阶跃幅值和惯量负载的变化对阶跃响应时间的影响，给出了带惯量负载下旋转型行波超声电机阶跃响应的瞬态特性，验证了旋转型行波超声电机在给定环境下应用的瞬态响应能力。