CAJ | 학술논문

为揭示预应力对超声电机定子振动特性的影响，准确分析电机的输出性能，对行波旋转型超声电机定子结构在有、无预应力两种状态下进行了模态分析，研究了预应力对超声电机定子振动固有频率和振幅的影响，提出了模态“纯”度的判别标准，分析了预应力对模态混叠的影响。结果表明：预应力增加了超声电机定子振动的固有频率，增大了定子振动的振幅，能够有效抑制电机模态混叠现象。
위게시예응력대초성전궤정자진동특성적영향，준학분석전궤적수출성능，대행파선전형초성전궤정자결구재유、무예응력량충상태하진행료모태분석，연구료예응력대초성전궤정자진동고유빈솔화진폭적영향，제출료모태“순”도적판별표준，분석료예응력대모태혼첩적영향。결과표명：예응력증가료초성전궤정자진동적고유빈솔，증대료정자진동적진폭，능구유효억제전궤모태혼첩현상。
For disclosing the effects of pre-pressure on stator vibration to analyse ultrasonic motor output per-fotmance more accurately , this paper , aiming to a given ring-type traveling wave ultrasonic motor , studied ultrasonic motor stator mode analyse in double-state with pre-pressure and non-pre-pressure , mainly analysed the affects of pre-pressure on inherent frequency , amplitude of ultrasonic motor stator vibration , and presen-ted mode hallmark differentiate principle to study the affects of prepressure on mode mixing.Results shows that pre-pressure can increase ultrasonic motor stator inherent frequency , amplitude and avoid mode mixing availably.