【摘要】 分析了超声振动的减摩机理和振型、振幅等因素对减摩作用的影响，认为超声振动使摩擦面间的实际接触面积显著减小是导致摩擦力显著下降的主要原因。设计制造的直线式超声振动减摩试验机构具有一定的减摩作用，当信号源驱动电压为１６０Ｖ时，超声振动可使摩擦系数降低约６３％。更多还原

【Abstract】 The basic mechanism of ultrasonic vibration anti-friction is analyzed. Under ultrasonic vibration.the main reason for a remarkable reduction in friction is an apparent decrease of real contact area. The relations between vibration modes,amplitude and anti-friction are obtained. The linear ultrasonic vibration anti-friction experi- mental mechanism has some effects on anti-friction. When the volt of signal generator is 160 V, the coefficient of sliding friction is reduced to 63% of original one by ultrasonic vibration in the contact area.更多还原