摘要
将桅杆结构振型表示为三角级数形式 ,基于Lagrange第二方程 ,推导弹性支座连续梁模型简化振动方程。给出了不同情况下桅杆结构低阶频率和振型的实用计算表格 ,并通过计算实例与有限元方法进行比较 。
As expressing the modes of guyed masts in sin series,the simplified vibration equations for continuous beam supported by elastic springs are derived based on the second Lagrange equations.A precticable data table is given to calculate the first frequencies and modes of guyed masts with different spring supports,and the calculating result is confirmed by that results of FEM.
出处
《建筑结构》
CSCD
北大核心
2004年第5期36-37,共2页
Building Structure
基金
国家自然科学基金资助项目 (编号 :5 0 1780 5 2 )
关键词
桅杆结构
振动
频率
振型
连续梁
guyed masts
inherent vibration characteristics
frequency
modes
