以超声振动中的摩擦系数变化现象为研究对象，初步分析了产生原因，并设计了超声减摩试验机构，进行了初步的实验研究，其结果与理论分析相符合。 Taking the change of the friction coefficient in ultrasonic vibration as the research object, the reason of the initial vibration was analyzed. The ultrasonic anti-friction test mechanism was designed and the experimental research was carried out. The results are in good agreement with the theoretical analysis.