摘要
在4振型自由度索单元的基础上，推导出在强迫振动下纤绳动张力实用计算公式和振动桅杆的扩阶计算方程。推导过程中，考虑了纤绳在空间的耦合振动以及纤绳和杆身的相互作用。通过空间风荷载的模拟，给出计算实例。计算结果表明。
A four - degree - of- freedom model of dynamic cable is studied and dynamic equations of guyed mast expanded order system are derived. Couplings between different planers motion of a cable and between cables and mast are considered. An example is given after simulation of wind as multi - corelated stochastic processes. Results show that oscillation of cable should be considered in studies on dynamic response of guyed mast reduced by wind load.
出处
《同济大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
1998年第6期631-635,共5页
Journal of Tongji University:Natural Science
基金
国家自然科学基金!59778030
关键词
纤绳动张力
桅杆结构
随机风振
扩阶系统
Dynamic tension of cable
Guyed mast
Wind-reduced vibration
System of expanded order
