Thus, the relationship between the rotating speed of the motor and some factors, such as the ultrasonic vibration of the stator, the fluid acoustic streaming field and the rotorradius, etc.
将声流场同电机转速联系起来，对电机转速同定子超声振动、液体声流场、转子半径等因素的关系进行了分析。
2
The method reduces calculation errors caused by the change of rotor shaft radius because of wear, simplifies the calculation and increases the operation speed.
该方法不但减少了因为转子磨损转轴半径变化带来的计算误差，而且还简化了计算，有效地提高了运算速度。
3
The methods of reducing centrifugal fan fixed in oil gas machine are studied by altering the gap between cases and tip of rotor, radius of tongue of case and inclining the tongue of case.