CAJ | 학술논문

阐述了得出螺栓拧紧力矩的方法，结合预紧力和预紧力矩之间的关系，给出其理论方程和实验方程，分析了预紧力、螺纹摩擦转矩和螺母支承面摩擦转矩三者的分配情况。以此为基础，从结构变形与应力释放、材料表面摩擦力变化等方面对力矩衰退的原因进行了初步分析，并提出设定拧紧力矩安全系数和定期校核拧紧的措施，供螺纹结构设计及其使用维护参考。
천술료득출라전녕긴력구적방법，결합예긴력화예긴력구지간적관계，급출기이론방정화실험방정，분석료예긴력、라문마찰전구화라모지승면마찰전구삼자적분배정황。이차위기출，종결구변형여응력석방、재료표면마찰력변화등방면대력구쇠퇴적원인진행료초보분석，병제출설정녕긴력구안전계수화정기교핵녕긴적조시，공라문결구설계급기사용유호삼고。
The method to get screw torque is described. Combined with the relationship of threaded preload and torque, the theoretical formula and test formula are provided to describe the division of the pre-tightening, the friction torque of screw and the friction torque of nut’s surface. Based of those, the torque degeneration theory is analyzed from the aspects of structure distortion, stress release, friction alteration and so on. Then the response measures are advanced such as setting torque safe factor and periodic tighten. All those are for the reference of screw structure design and use.