CAJ | 학술논문

研究新型直线超声波电机运行机理，采用双压电晶片及双足驱动结构，具有结构简单、无需频率简并、易于小型化等优点。详述其结构、振形特点及工作机理。建立电机定子振动响应有限元模型，给出输入阻抗计算方法。用已建模型计算获得定子驱动足接触点在谐振频率点附近振幅，推导驱动足接触点运动轨迹。通过实测定子阻抗特性将所得结果与理论分析进行比较。
연구신형직선초성파전궤운행궤리，채용쌍압전정편급쌍족구동결구，구유결구간단、무수빈솔간병、역우소형화등우점。상술기결구、진형특점급공작궤리。건립전궤정자진동향응유한원모형，급출수입조항계산방법。용이건모형계산획득정자구동족접촉점재해진빈솔점부근진폭，추도구동족접촉점운동궤적。통과실측정자조항특성장소득결과여이론분석진행비교。
The operation mechanism of a new type linear ultrasonic motor was analyzed.The motor,installed with bimorphs and double-driving feet,has the attribute of simple structure,no frequency degeneration and easiness to be miniaturized.The construction,vibration mode and operation principle were described.A finite element model of the stator was established to investigate its vibration responses.The computation method of input impedance of the stator together with the computation results was presented.The vibration amplitudes at the driving-feet's contact points close to the harmonic frequency were computed.The movement loci of the driving-feet's contact points were derived.The impedance characteristic of stator was surveyed by using impedance characteristic analysis instrument, and the experimental results were compared with the theoretical ones.