摘要
用UG中的规律曲线建立6×19西鲁钢丝绳、1×6单股钢丝绳三维模型,针对西鲁股第2层和第3层钢丝位置关系进行三次多项式曲线拟合,建立了二者捻角变化的三次曲线关系,保证钢丝绳捻制后同一个旋转周期螺旋捻距的大小相同;同时建立了第3层钢丝螺旋半径与第2层钢丝螺旋半径之比随第2层钢丝捻角变化的三次拟合关系,确保钢丝捻制后两层丝刚好能接触.利用Workbench对1×6单股钢丝绳进行有限元分析,钢丝绳一段固定,对另一端每根丝加载荷.对比了中心丝与侧丝接触应力,理论计算与有限元分析结果误差在3%,验证了模型和网格的有效性.单股有限元最大应力出现在侧丝与侧丝加载变型后相接触点.
A three-dimensional model is established using the curve function of UG for the 6× 19 Seale wire rope and the 1×6 single-strand wire rope. Through the curve-fitting of the positional relationship by the third order polynomial between the second and third layers of the Scale wire rope, the third order polynomial relationship between two helix angles is established to ensure that the rope have the same lay length after twisting spiral. At the same time, the third order polynomial relationship of the helix radius ratio between the second and third layers of Scale wire is established to ensure that the two wires can contact with each other. A finite element analysis is made of the 1×6 single-strand wire rope using Workbench. A wire rope is fixed at one end and each strand at the other end is given load. The contact stress on the center wire and the side wire is compared and the theoretical calculation and finite element analysis result error is at 3%. The validity of the model and the gridding is verified. The maximum stress of single strands occurs at the contact point between the side wire and the loaded side wire.
出处
《五邑大学学报（自然科学版）》
CAS
2016年第1期64-68,共5页
Journal of Wuyi University(Natural Science Edition)
基金
五邑大学机械制造及其自动化重点学科(2021501)
