STUDY AND APPLICATION OF Ni-Ti ALLOY INTELLIGENT WASHER

摘要

In order to avoid the uneven load and the breakdown of a set of bolts in key joined construction, an intelligent washer is designed with taking advantage of the compression pseudo-elasticity of Ni-Ti alloy, and the function of adjusting load of intelligent washer is analyzed. The results of the application test in locomotive show that Ni-Ti alloy intelligent washer can share alike the load between the bolts, and reduce the dynamic stress of bolts. It has good function of auto-even load and anti-break. So it can improve the safety and the reliability of bolt joining construction.