钢拉杆三角形和梯形螺纹螺牙受力分析

摘要

分析了传统钢拉杆螺纹强度计算中存在的问题，以某钢拉杆梯形螺纹和三角形螺纹为例，建立了有限元模型，并对螺纹根部受力进行了研究，探讨了其失效机理，结果表明用ANSYS建立的螺纹牙模型变形较小，应力分析更加精确，符合实际受力情况。%This paper analyzed the existing problems in traditional steel rod thread strength calculation,taking a steel rod trapezoidal thread and triangle thread as an example,established the finite element model,and researched the whorl root stress,discussed its failure mechanism,the results showed that using ANSYS to establish a thread model had small deformation,the stress analysis more accurate and accord with force situation.