摩擦因数对钢丝绳有限元分析结果的影响

Effects of friction coefficient on the steel wire rope finite element analysis result

钢丝绳在使用过程中,钢丝之间的摩擦因数会逐渐增大。文中以某型起重机所用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因数下的应力和变形分布,探究了摩擦因数对其应力和变形的影响。利用Solid Works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4种不同的摩擦因数对钢丝绳应力和变形的影响。结果表明,钢丝绳Von-Mises应力随着摩擦因数的增大而增大,变形量U随着摩擦因数的增大而小幅度减小,说明摩擦因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。

During the use of steel wire rope, the friction coefficient 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, the stress and deformation distribution were simulated and analyzed under different friction coefficients. Besides, the effect of the friction coefficient on the stress and deformation was explored. The three-dimensional model of the wire rope was established with Solid Works software,and the model was imported into the ABAQUS, then 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, 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.