摘要
该文应用修正光滑粒子方法(CSPM)和黎曼解对光滑粒子流体动力学(SPH)方法进行了修正,将修正后的SPH数值方法应用到波浪与开孔沉箱结构相互作用的研究中,采用结构完全瞬态动力分析方法对有顶板开孔沉箱的动应力响应问题进行了时域研究,研究了有顶板开孔沉箱开孔板动应力的分布情况,讨论了动应力峰值与顶板高差影响因素间的关系,得出了等效应力沿着开孔板中心位置向两侧非线性变化的结论,为开孔沉箱结构设计提供了一定的参考。
The revised Smoothed Particle Hydrodynamics （SPH） method based on the Corrective Smoothed Particle Method （CSPM） and the Riemann solution is used to simulate interaction between wave and perforated caisson with a top cover. The dynamic stress response time-domain research of perforated caisson based on the Fully Transient Dynamic Analysis Method is also studied, such as the distribution of dynamic stress along the perforate plate and the relationship between peak of dynamic stress and its influencing factor. It is concluded that the equivalent stress of perforated caisson exhibits nonlinear variation from the center to the sides along the perforated plate at the still water lever. This research is expected to be helpful for design of perforated caisson.
出处
《工程力学》
EI
CSCD
北大核心
2017年第9期184-192,共9页
Engineering Mechanics
基金
国家自然科学基金项目(51308095
51409045)
关键词
海岸与近海工程
开孔沉箱
SPH
黎曼解
动应力
时域分析
coastal and offshore engineering
perforated caisson
smoothed particle hydrodynamics
riemann solution
dynamic stress
analysis of time-domain
