摘要
基于比例边界有限元理论,推导了综合考虑库水可压缩性和库底边界吸收的坝面动水压力方程,提出了一种新的求解坝面动水压力的半解析方法,并通过算例验证了这种方法的精度和效率。结果表明,与传统方法相比,这种方法具有精度高、计算工作量小的优点。
Based on the Scaled Boundary Finite Element Method(SBFEM),an equation for calculating hydrodynamic pressure on dams was derived,it could consider effects of compressibility of water and reservoir bottom absorption.A new semi-analytical method for calculating hydrodynamic pressure was proposed.Numerical examples of a two-dimensional gravity dam were provided.It was shown that this approach is superior to conventional methods in computational efforts and accuracy.
出处
《振动与冲击》
EI
CSCD
北大核心
2009年第3期31-34,45,共5页
Journal of Vibration and Shock
基金
国家自然科学基金资助项目(重点项目90510018)
关键词
动水压力
比例边界有限元法
半解析法
水的可压缩性
库底边界吸收
hydrodynamic pressure
scaled boundary finite element method(SBFEM)
semi-analytical method
compressibility of water
reservoir bottom absorption
