圆柱形扭簧簧圈椭圆度对应力及刚度的影响

Influence of Ovality of Cylindrical Helical Torsion Spring Coil on Stress and Stiffness

针对已成型簧圈为椭圆而非标准圆的圆柱螺旋扭转弹簧试验寿命不足的问题,为探究扭簧簧圈椭圆度对扭簧所受最大应力及刚度的影响,提出一种基于HyperMesh与ANSYS联合仿真的圆柱螺旋扭转弹簧有限元分析方法。在试验工况下,对不同椭圆度簧圈的扭簧进行有限元计算。对有限元计算结果进行分析得出:扭簧簧圈椭圆度对刚度没有影响;扭簧所受最大应力随簧圈椭圆度增大而增大,且二者呈线性关系。

To imporve the insufficient test life of a cylindrical helical torsion spring made of an elliptical coil instead of a standard circle coil,a finite element analysis method of cylindrical helical torsion spring based on HyperMesh and ANSYS co-simulation is proposed so as to study the influence of the ovality of the cylindrical helical torsion spring coil on the maximum stress and stiffness of the spring.Under the given test condition,the torsion springs with different ovality coils are calculated by finite element method.The analysis of the finite element calculation results show that the ovality of the cylindrical helical torsion spring coil has no effect on the stiffness,and the maximum stress on the torsion spring increases along with the increase of coil ovality,and in between there is a linear relationship.