某特种车辆轮辋螺栓断裂原因分析

Analysis on the Fracture Reason of Rim Bolt of a Special Vehicle

针对某特种车辆轮辋夹紧螺栓断裂问题,通过逐一分析螺栓断裂主要原因,定位螺栓断裂失效模式为安装不到位,夹紧螺栓与轮辋接触面积过小,螺栓根部产生附加弯矩导致应力过大疲劳断裂。

Aiming at the problem of rim clamping bolt fracture of a heavy vehicle, through the analysis of main modes one by one, the failure mode of locating bolt was that the installation was not in place, the contact area between tightening bolt and rim was too small, and the additional bending moment at the bolt root caused excessive stress and fatigue fracture.