THREE-DIMENSIONAL NON-LINEAR VIBRATION ANALYSIS OF A CABLE

摘要：

Three-dimensional(3-D) nonlinear vibration equations for analyzing the cables dynamical characteristics have been setup based on Hamilton principle and Galerkin method, and Newmark-β method is used for solution of the equations. Take cable J13 in Runyang Cable Bridge as an example,numerical analysis is utilized to investigate non-linear coupling vibration behaviors of free vibration of the cable out of plane. Results show that, when the cable produces the out-of-plane free vibration,the in-plane vibrations are induced and the out-of-plane vibration are strengthened, as the nonlinear coupling actions and excitation mutually between the modes and the response of the induced vibrations are larger in multi mode than in simple mode. Furthermore, the vibration frequencies of the cable are integer times of the induced vibration frequencies, and the cable Irvine parameter is an important factor to determine its nonlinear coupling action, and the cable vibration amplitude increases with Irvine parameter.

关键词： Cable Nonlinear vibration equation Hamilton principle Vibration analysis

作者: Xiao-Bao Zuo Ai-Qun Li Sun Wei

作者单位: Department of Civil Engineering, Nanjing University of Science & Technology, Nanjing 210094, P.R. Ch College of Civil Engineering, Southeast University, Nanjing 210096, P.R. China Jiangsu Key Laboratory of Construction Materials, Southeast University, Nanjing 211189,P.R. China

会议类型: 国际会议

会议名称: 第十届国际结构工程青年学者研讨会(The Tenth International Symposium on Structural Engineering for Young Experts)

会议地点: 长沙

会议语种:英文

页码: 1690-1697

在线出版日期: 2008-10-19（万方平台首次上网日期，不代表论文的发表时间）