Radial distribution of the static pressure at stator surface was measured in a rotor - stator disk cavity with centric inflow and two outflows 摘要中心進(jìn)氣具有兩個出口的旋轉(zhuǎn)盤系統(tǒng)中靜盤表面沿半徑方向的靜壓分布由實(shí)驗方法獲得。
Being a sort of new principle micromotor in the fronitier of science , the ultrasonic motor ( usm ) is developed at recently twenty years . utilizing the stator surface particle elliptical motion excited by piezoceeramics , the usm is drived by friction force between the stator and rotor 本文以這一新型電動機(jī)為研究對象,對其運(yùn)行特性和控制策略進(jìn)行研究,是有較重要的理論和實(shí)際意義的。
Being a sort of new principle micromotor in the fronitier of science . the ultrosonic motor ( usm ) is developed at recently twenty years . utilizing the stator surface particle elliptical motion excited by piezoceeramics , the usm is drived by friction force between the stator and rotor . compared with the conventional electromagnetic motor , the ultrasonic motor has the following features : high speed , high holding torque when power is off and so on . because of it ' s characteristics , the ultrasonic motor has obtained some widespread application in robots , precise instrument , house electronical appliance , sapceecraft automobile and micromechanism 超聲波電機(jī)( ultrasonicmotor )是近二十年來發(fā)展起來的一種新原理電機(jī),其原理不同于傳統(tǒng)的電磁型電機(jī),它是利用壓電陶瓷的逆壓電效應(yīng)使定子的表面質(zhì)點(diǎn)產(chǎn)生橢圓運(yùn)動,通過定子和轉(zhuǎn)子之間的摩擦力驅(qū)動轉(zhuǎn)子運(yùn)動。這種新型的電機(jī)與傳統(tǒng)電磁電機(jī)相比,具有響應(yīng)快、不受電磁干擾、結(jié)構(gòu)緊湊、低速、大扭矩、斷電自鎖等優(yōu)點(diǎn),因而在微型機(jī)械、機(jī)器人、精密儀器、家用電器、航天器、汽車等方面顯示出廣泛的應(yīng)用前景。
Based on the research of the characteristics of piezoelectric ceramic , this paper presents the analysis of the movement of the stator surface points and work principle of motor . this paper describes a theory about the influence of the ultrasonic vibration on the frictional properties of ultrosonic dring , and finds that the horizontal vibration produces friction driving force and vertical vibration affects horizontal driving effect 并且對行波型超聲波電動機(jī)的減摩現(xiàn)象進(jìn)行了研究,發(fā)現(xiàn)在接觸區(qū)定子表面上一點(diǎn)的水平振動產(chǎn)生摩擦驅(qū)動力,垂直振動只起影響水平驅(qū)動效果的作用,得出垂直方向超聲振動具有減振作用是引起超聲驅(qū)動動摩擦系數(shù)降低的原因。