軸直角方向振動下におけるボルト・ナット締結体の微小ゆるみ評価

Abstract

For mechanical structures, it is important to prevent the self-loosening of threaded fasteners, but there are unclear points about locking performance under small transverse vibration. In this paper, we experimentally examine the performance of some locking fasteners, and we found that almost all the parts preventing loosening are reduced bolt tension little by little under small transverse vibration, while bolted joints using spring washers or conical spring washers are no effect of preventing loosening under small transverse vibration.