流体环境中结构附加质量的计算  

Calculation on Added Mass of Structures in Fluid Environments

作　　者：王基盛[1] 杨庆山[1] 

机构地区：[1]北方交通大学土木建筑工程学院,北京100044

出　　处：《北方交通大学学报》2003年第1期40-43,共4页Journal of Northern Jiaotong University

基　　金：国家自然科学基金"九五"重大项目(59895410);高等学校优秀青年教师教学和科研奖励计划

摘　　要：采用弱耦合法来分析流体与结构的耦合作用,探讨了流体环境中影响结构附加质量的因素,并推导了流体动能的计算方法.文中计算了椭圆柱体和平坦薄膜屋盖的附加质量,得到附加质量对薄膜结构的动力特性有重要影响的结论.This paper applies weak_interaction method to analyze fluid_structure interaction. The factors that affect the added mass of structures in fluid environments are discussed, and then the general method for calculating kinetic energy of fluid is derived. The added mass of a cylindrical column and a membrane structure are calculated. It is concluded that added mass significantly influences the membrane structures on their dynamic properties. 

关 键 词：附加质量 流体动能 薄膜结构 

分 类 号：TU312.1[建筑科学—结构工程]