利用微机改进微动磨损试验装置研究

Study of Modifying the Fretting Test Apparatus with Microcomputer

采用步进电机为动力源的微动磨损试验机结构简单，制造方便，但电机工作时本身振动也传递到工作台上，这些振动尽管振幅极小，很难测出，但明显干扰了电接触件间的接触稳定性，从而影响了微动磨损的试验结果。通过改进，减小了步进电机振动造成的负面影响，取得了很好的效果。

The fretting apparatus with step motor takes advantage of simplicity in structure andeasy fabricating. However, in operation the vibration from motor will be transferred to flat, interfering in the contacting stability of electronic probe and then affecting the experimental resultof fretting, though the vibration possess small amplitude and difficult to measure. The vibrationis monitored with computer to lessen the nagative influence.