摘要
本文在文献[1]的基础上,建立了线性流固耦合振动的三个分区广义变分原理及相应的有限元方程。这些方程的特点为:在流体域中一律采用平衡元,在固体域中则分别采用协调元、平衡元、及混合杂交元。所得到的有限元方程都具有结构简单、便于应用的优点。
In this paper, three subdomain generalized variational principles for coupled vibrations of linear fluid-structure systems with their corresponding finite element formulations are developed on the basis of the authors previous work. These finite element formulations have the following characteristics. The fluid domain is discretized with the use of dynamic-equilibrium model in all three cases, while the solid domain is discretized with the use of velocity model(or modified compatible model), dynamic equilibrium model, and mixed-hybrid model respectively. Each of these three finite element formulations has the advantage of simplicity and practicability.
出处
《北方工业大学学报》
1987年第1期10-21,共12页
Journal of North China University of Technology
