Vibration Analysis of Warp on Weaving  

作　　者：沈丹峰 赵辉 叶国铭 

机构地区：[1]College of Electromechanical Engineering,Xi'an Polytechnic University [2]Xi'an Textile Group [3]College of Mechanical Engineering,Donghua University

出　　处：《Journal of Donghua University(English Edition)》2012年第5期439-445,共7页东华大学学报（英文版）

基　　金：Natural Science Foundation of Shaanxi Province,China(No. 09JK456)

摘　　要：Warp is a nonlinear viscoelastic material. The loom efficiency was reduced considerably by the increase of the frequency of weak places in the warp. Warp should vibrate with low-frequency to reduce the friction times. The objective of this research was to establish the transverse/longitudinal vibration differential equations of warp and analyze the fluctuation process of warp movement by nonlinear method. Based on variable separation method, the time variable was separated from space variable, and the numerical solutions of vibration equations were obtained by the fourth-order Runge-Kutta method. Finally, the influencing factors and variable trends on warp vibration were discussed. The methods on control warp vibration were introduced, which could guide the engineering practice. The most important way to reduce warp vibration is quick adjustment of warp tension.Warp is a nonlinear viscoelastic material. The loom efficiency was reduced considerably by the increase of the frequency of weak places in the warp. Warp should vibrate with low-frequency to reduce the friction times. The objective of this research was to establish the transverse/longitudinal vibration differential equations of warp and analyze the fluctuation process of warp movement by nonlinear method. Based on variable separation method, the time variable was separated from space variable, and the numerical solutions of vibration equations were obtained by the fourth-order Runge-Kutta method. Finally, the influencing factors and variable trends on warp vibration were discussed. The methods on control warp vibration were introduced, which could guide the engineering practice. The most important way to reduce warp vibration is quick adjustment of warp tension.

关 键 词：warp model nonlinear vibration perturbation method Mathieu equation tension fluctuation 

分 类 号：TS102.2[轻工技术与工程—纺织工程]