原创-中文核心期刊论文《摩擦系数对钢丝绳有限元分.docVIP

摩擦系数对钢丝绳有限元分析结果的影响 摘要：钢丝绳在使用过程中，钢丝之间的摩擦系数μ会逐渐增大。本文以某型起重机所用6×36+WS结构的钢丝绳为研究对象，仿真分析了其在不同摩擦系数下的应力和变形分布，探究了摩擦系数μ对其应力和变形的影响。利用SolidWorks软件建立了钢丝绳三维模型，导入ABAQUS中，建立钢丝绳有限元模型。在相同的轴向荷载下，仿真分析了四种不同的摩擦系数μ对钢丝绳应力和变形的影响。结果表明，钢丝绳Von-Mises应力随着摩擦系数μ的增大而增大，变形量U随着摩擦系数μ的增大而小幅度地减小，说明摩擦系数是影响钢丝绳寿命的重要因素，钢丝绳使用过程中应注意润滑。 关键词：钢丝绳；有限元；摩擦系数；应力；变形 中图分类号：TH123.4 The effects of friction coefficient on the result of finite element analysis of steel wire rope Abstract：During the use of steel wire rope, the friction coefficient μ between the wires will gradually increase. Taking the wire rope, which based on the 6 × 36 + WS structure of a certain crane, as the research object, this paper simulated and analyzed the stress and deformation distribution under different friction coefficients. Besides, it explored the effect of the friction coefficient μ on the stress and deformation. Based on the SolidWorks software, the three-dimensional model of the wire rope was established. Importing this kind of model into the ABAQUS, the finite element model of the steel wire rope was established. Under the same axial loads, the effects of the four different friction coefficients on the stress and deformation of the wire rope were simulated and analyzed. The results show that, with the increase of the friction coefficient μ, the Von-Mises stress of the wire rope increases, the deformation U decreases by a small margin. This phenomenon demonstrates that the friction coefficient is the key factor affecting the service life of the wire rope and certain attention should be paid on the lubrication during the use of the wire rope. Key words：Steel wire rope；FEM；Friction coefficient ；Stress；Deformation 1 概述 钢丝绳作为起重设备的关键部件，对起重机的安全性能有重要的影响[1]。但是钢丝绳呈空间螺旋结构，较为复杂，传统的受力分析无法准确求解其力学特性[2]。同时在提升过程中，钢丝绳内部股与股，丝与丝之间存在的微动摩擦将降低钢丝绳的疲劳强度，加速钢丝绳的疲劳断丝[3]。为延长钢丝绳的使用寿命，钢丝绳生产商在钢丝绳内充满了润滑油脂，可以减小钢丝间的摩擦系数。但是，当钢丝绳使用一段时间后，润滑油脂逐渐失效，导致钢丝间的摩擦系数逐渐增大，加剧了钢丝间的微动损伤[4]。因此，研究钢丝绳不同摩擦系数对钢丝绳承载重物过程中应力和变形的影响规律，对延长钢丝绳使用寿命和提高钢丝绳的使用和保养水平具有重要意义[5]。 某型桥式起重机所用钢丝绳(如 REF _Ref456