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对椭圆股和三角股钢丝绳的扭转和弯曲性能进行了有限元分析.在考虑两类钢丝绳股空间结构的相似性及钢丝间的摩擦接触等情况下,对捻向为右捻的椭圆股和三角股钢丝绳进行参数化建模和性能求解.仿真结果表明:两类钢丝绳股的扭转刚度均随捻角和侧丝直径的增大而增大,椭圆股钢丝绳的扭转刚度和弯曲刚度低于三角股钢丝绳;相对三角股芯丝,椭圆股的芯丝应力集中现象更加明显;在相同的扭转载荷作用下,椭圆股钢丝绳比三角股钢丝绳更易达到应力屈服,这与弯曲载荷作用下的现象相反.
The torsional and flexural properties of elliptical and triangular wire ropes were analyzed by finite element method.With the consideration of the similarity of space structure and the frictional contact between the two types of wire ropes, The simulation results show that the torsional stiffness of both types of steel wire ropes increases with the increase of the twist angle and the diameter of the side wires, and the torsional stiffness and flexural rigidity of the wire ropes are lower than those of the triangular stock Compared with the triangular wire strand, the stress concentration of the core wire of the oval strand is more obvious. Under the same torsional load, the oval strand rope can reach the stress yield more easily than the triangle strand rope, which is opposite to that under the bending load.