摘要
针对集中荷载作用下两端固定悬索在集中荷载点外激励作用下悬索系统发生的强迫振动,分析了悬索系统可能出现的次共振现象,得到了出现次共振解的通式。根据该通式可以直接分析系统可能出现的次共振以及次共振出现的条件;通过算例,得到了一阶振型的3次谐波共振的分叉图。
The possible hype-resonance phenomenon of suspended cable system is analyzed for two cases of forced vibration.The general expression of solution for hype-resonance of suspended cable is obtained.Using this general expression,the possibility and condition for appearance of hype-resonance of the system can be directly analyzed.Finally,the bifurcation diagrams of the third order superharmonic resonance of the first-order modal of the system are provided.
出处
《噪声与振动控制》
CSCD
北大核心
2010年第4期13-17,共5页
Noise and Vibration Control
基金
湖南省长沙市科技局科技计划项目(FJ3036)
湖南省科学技术厅科技计划项目(05FJ3036)
关键词
振动与波
次共振
悬索
分叉
伽辽金法
多尺度法
vibration and wave
hype-resonance
suspended cable
bifurcation
Galerkin method
multiscale method
