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Acta Armamentarii ›› 2018, Vol. 39 ›› Issue (4): 798-809.doi: 10.3969/j.issn.1000-1093.2018.04.020

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Simulation Analysis on the Stress and Fatigue Life of a Special Equipment's Wire Rope

DU Wen-zheng, MA Bao-zhu, CAO Da-zhi   

  1. (Missle Institute, Rocket Force University of Engineering, Xi'an 710025, Shaanxi, China)
  • Received:2017-09-08 Revised:2017-09-08 Online:2018-05-30

Abstract: The stress and fatigue life of 6×36 WS wire rope of a special equipment under axial tension and the bending state around the pulley are studied to analyze the stress distribution and fatigue failure of steel wire rope during the working process. A finite element model of the steel wire rope is established,and the stress distribution under the axial tension and the bending state around the pulley are simulated and analyzed. Then the fatigue test of the steel wire is carried out to obtain the fatigue life data. Based on the fatigue data of the steel wire and the finite element analysis results of the rope,the fatigue life simulation analysis of the wire rope is carried out according to Miner linear accumulated damage theory. The results show that the stress of steel wire rope is larger in the contact areas of the adjacent wires and rope strands, and the contact area between wire rope and pulley. The greater the stress is,the shorter the fatigue life is. Key

Key words: steelwirerope, finiteelement, stress, Minertheorem, fatiguelife

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