含孔洞封闭性薄膜结构的自振特性分析模型  

Natural vibration analysis model of closed fabric structures with openings

作　　者：杨庆山[1] 王莉[2] 王基盛[1] 

机构地区：[1]北方交通大学土木学院,北京100044 [2]中国林业科学研究院,北京100091

出　　处：《空间结构》2003年第2期44-46,55,共4页Spatial Structures

基　　金：国家自然科学基金重大项目(59895410);高等学校优秀青年教师教学与科研奖励计划.

摘　　要：本文初步分析了薄膜结构与风环境的静力耦合作用对薄膜结构自振特性的影响.以静力耦合模型为基础,将含孔洞封闭性薄膜结构等效成一个刚性活塞,分别对无阻尼和有阻尼时薄膜屋盖的自振特性进行了分析.The influence of the interaction of fabric structures with wind environments on the natural vibration of fabric structures is introduced preliminarily in this paper The fabric structure is modeled as a closed building with openings, and the roof is equivalent to a rigid piston. Based on the static interaction model, the natural vibration of the fabric roof with and without damping are discussed respectively. 

关 键 词：薄膜结构 自振分析 声致阻尼 气承刚度 静力耦合 

分 类 号：TU383[建筑科学—结构工程] TU311.3