MODELING, DYNAMICS AND CONTROL OF CABLE SYSTEMS
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摘要:绳索系统具有无限自由度,当计入非线性因素的作用时,其面内和面外的振动相互耦合,呈现非常丰富的非线性动力学行为.另外,绳索系统经常工作在风、流体、微重力、电磁力等作用下,进一步加剧了其动力学的复杂性.绳索系统的动力学现象引起了工程界和力学界的关注.本文对绳索在重要工程系统中的应用及相应的动力学现象进行概述,给出了柔索的动力学建模过程,对绳索系统的动力学和控制研究进行了总结,并指出了值得进一步关注的若干问题.Abstract:Elastic cables have been frequently used in variousengineering fields, such as civil engineering, space engineering, electricand communication engineering. In general, the mechanical model of a cableincludes an infinite number of degrees of freedom. The geometricnonlinearity in the cable movement usually makes the in-plane and out-of-planevibrations coupled with each other so that the cable dynamics may exhibit abundantnonlinear phenomena. Furthermore, a cable system is often subjected to theexternal excitations such as wind, rain, fluid, micro-gravity andalternative electro-magnetic fields, which definitely enhance the complexityof the cable dynamics. Therefore, the cable dynamics has drawn muchattention over the past decades. After a brief introduction to some typicalapplications of cables and related dynamics, this review presents the methodsof dynamic modeling of cable systems, surveys the recent advances indynamics analysis and vibration control for cable systems, and points out afew open problems to that should pay more attention.
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Key words:
- ccable system/
- dynamics/
- control/
- modeling
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