Degradation Phenomenon of Electrical Contacts by a Micro-Sliding Mechanism - The comparison of the evaluated minimal sliding amplitudes

摘要

Authors have developed a mechanism which supplies reciprocal micro-sliding to electrical contacts directly driven by a piezo-electric actuator and four elastic hinges. In this paper, it is indicated that there are the minimal sliding amplitudes under which there is rarely degradation phenomenon and over which there is mostly degradation phenomenon in the following conditions. The conditions are two types of input waveform, three levels of frictional force between male-pins and female-parts, and the number of pins. After statistical process, the evaluated values are changed slightly to another values. Moreover, each value of two-sided 95 confidence interval is calculated respectively. It is indicated that statistically significant minimal sliding amplitudes are evaluated by the process.