Effects of transition zone between parallel broken line grooves on vibration of hoisting wire rope

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Journal of Vibration and Shock ›› 2018, Vol. 37 ›› Issue (9) : 92-99.

PENG Xia 1,2,3，GONG Xian-sheng1,2,WU Xian-zhao1,2,ZOU Sheng-yong4

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Abstract

The forms of grooves on a drum for ultra-deep mine hoist have extremely important effects on vibration of hoisting wire rope and smooth winding. Here, the effects of transition zone between parallel broken line grooves of a multi-layer winding drum on vibration of hoisting wire rope under different asymmetric parameters were studied. The suspension rope’s lateral vibration of of hoisting wire rope was studied and its amplitude was taken as the evaluation index for asymmetric forms of multi-layer winding grooves. On the basis of studying the movement behavior in the transition zone of a mine hoisting system and wire rope, the dynamic partial differential equations of the hoisting system and the excitation function were established, and they were discretized into ordinary differential equations with Galerkin method. Taking a certain ultra-deep mine as an example, the effects of transition zone between parallel broken line grooves on vibration of the hoisting system under different asymmetric parameters were studied with numerical simulation. The results showed that either symmetric groove form or asymmetric one depends on the hoisting system’s parameters. The study method and the study results provided a scientific guidance for correctly designing and selecting parallel broken line grooves on a multi-layer winding drum.

Key words

multi-layer winding / asymmetric coefficient / lateral oscillation / numerical solution

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PENG Xia 1,2,3，GONG Xian-sheng1,2,WU Xian-zhao1,2,ZOU Sheng-yong4. Effects of transition zone between parallel broken line grooves on vibration of hoisting wire rope[J]. Journal of Vibration and Shock, 2018, 37(9): 92-99

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