摘要
采用线性滤波法通过编程模拟了林木的脉动风速时程曲线,并在Ansys内建立其有限元模型,通过施加模拟得到的风荷载获得了林木风致随机振动的动力响应。分析表明这种方法对于模拟林木的风致随机振动是可行的。
The turbulent wind velocity time-history curve of forest trees has been simulated by using linear filtering method and programming, the finite element model （FEM） of the forest trees was built up within the Ansys, and the dynamic response data of the forest trees＇ wind-induced random vibration were obtained by applying the simulated wind load. It shows that this method is feasible to simulate forest trees wind-induced random vibration.
出处
《中南林业科技大学学报》
CAS
CSCD
北大核心
2012年第8期42-45,51,共5页
Journal of Central South University of Forestry & Technology
基金
国家自然科学基金项目(30872071)
关键词
林木
风害
随机振动
动力响应
forest trees
wind damage
random vibration
dynamic response
