钢丝绳索具复合套压制接头应力仿真分析

Wire Rope Sling Composite Set of Joint Forming Simulation Analysis

钢丝绳索具因其强度高、承载能力强、耐磨性好、传动平稳等优点而广泛应用于船舶运输、海洋工程、航空航天、矿山机械等领域。而目前单一的铝合金套、钢套索具难以满足高强度的需求,因此提出采用新型的铝合金套加钢套复合型套管高强度固结索具方式,并探究复合套的长度尺寸变化和排列方式(铝合金套--钢套、钢套--铝合金套)对钢丝绳应力特性的影响规律。基于SolidWorks-ABAQUS平台,建立1X7+IWS-24mm型单股折返式钢丝绳独特的空间螺旋结构三维模型,并结合显示动力学的方法对钢丝绳复合套索具模型进行压制成形FEA仿真分析,采用单因素控制变量法分别改变钢套与铝合金套的长度尺寸和其排列方式,得到了压制成型后钢丝绳的应力分布特性和变化规律。仿真结果表明,采用钢套--铝合金套排列方式且钢套长度L1所占比值为复合套总长L(80mm)的75%时,即钢套长度L1为60mm,铝合金套长度L2为20mm时,经压制成型后其钢丝绳最大应力值最小,为895.9MPa,并且钢丝绳的承载力能够达到最大抗拉强度2160MPa,可以有效改善钢丝绳力学分布特性及其工作性能,更好的满足使用要求。

Steel wire rope because of its high strength,strong carrying capacity,the advantages of good wear resistance,smooth transmission and widely used in ship and ocean engineering,aerospace,mining machinery and other fields.And the single aluminum alloy and steel lasso is difficult to meet the demand of high strength,therefore it proposes the use of the new type steel bushing and aluminum alloy composite bushing high strength consolidation rigging way,and to explore the length of complex set of changes and arrangement(aluminumalloy--steel sets or steel--aluminum alloysets)package for wire rope the influence law of the stress.Based on SolidWorks-ABAQUS platform,the establishment of 1x7+IWS-24mm single strands of turn-back type wire rope unique spatial helical structure 3d model,combining with the method of steel wire rope composite lasso display dynamic model is used to suppress forming FEA simulation analysis,using the single factor control variable methodto change the length of the steel bushing with the aluminum alloy sleeve respectively size and its arrangement,the pressure molding after the stress distribution characteristics and change rules of wire rope.The simulation results show that the steel bushing-aluminum alloy set of arrangement and steel bushing length L1 proportion for the composite set of 75%of the total length L(80mm),namely the steel bushing for length L1 60mm,aluminum alloy sleeve length L2 of 20mm,after forming the wire rope’s maximum stress value minimum and it’s 895.9MPa,and the bearing capacity of the steel wire rope can achieve maximum tensile strength of 2160MPa,can effectively improve the wire rope mechanical distribution characteristics and its working performance,better meets the requirement.