摘要
对流体-固体之间的动力相互作用的问题,采用流体有限元法研究结构自振特性的影响。建立了流固耦合运动方程体系,并对耦合方程组的求解过程进行了推导与阐述。编制了流体有限元自动生成程序,使得流固耦合问题从建立模型到分析能够利用计算机自动实现。最后以挡水结构作为算例,分别就不同水位工况和水体采用不同长度模型对结构振动的影响进行了分析。
A liquid finite element method is adopted to study natural vibration property of structure effected by the structure-liquid coupling. The solving process of coupling equations is discussed. The structure-liquid coupling vibration problem can be solved automatically by the auto-generating liquid finite element program. The effect of structure-liquid coupling on the structural vibration, which is in the case of different length of liquid and different water level, is calculated in the example of water retaining structure vibration.
出处
《世界地震工程》
CSCD
2004年第3期78-83,共6页
World Earthquake Engineering
基金
国家自然科学基金资助项目(50109005)
关键词
结构振动
流固耦合
自振特性
流体有限元法
structure vibration
structure-liquid coupling
nature vibration property
