• CN: 11-2187/TH
  • ISSN: 0577-6686

Journal of Mechanical Engineering ›› 2019, Vol. 55 ›› Issue (7): 147-154.doi: 10.3901/JME.2019.07.147

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Research on Time-varying and Nonlinear Tension Control Model in the Winding Process of SWHS and Simulation

CAI Wanqiang, WANG Shilong, ZHANG Qi, YANG Wenhan, YI Lili   

  1. The State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing 400044
  • Received:2018-04-18 Revised:2018-10-19 Online:2019-04-05 Published:2019-04-05

Abstract: Aiming on improving the tension consistency of wires and the debugging efficiency of tension control system, a dynamic model that describe the mechanism of tension generation is established to research the characteristics of time-varying and nonlinear system. Taking 3 wires stranded-wire helical spring (SWHS) as an example, the mechanism of tension interaction between wires is deduced. And a simulation model based on Matlab/Simulink platform is constructed to study the effect of sudden increase in resistance of a channel on tension consistency, accordingly. Sudden increase in tension causes the forming point of rope to move backward, which results in the increase of twist angle and the fluctuation of rolling speed and pulling speed. The effectiveness of the simulation model is verified by comparing the simulation deviation of the control system with the experimental deviation curve under different preset tension values. The response characteristics of simulation system is adapting to the actual system, and the result is a good way to reproduce some phenomena existing in the actual machining process, which is instructive to adjust the parameters of the tension control system.

Key words: dynamic model, simulation, stranded wire helical spring (SWHS), tension consistency

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