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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。
In this paper, modified smooth particle method (CSPM) and Riemann solution are applied to the smooth particle hydrodynamics (SPH) method. The modified SPH numerical method is applied to the study of the interaction between wave and open caisson structure. The dynamic transient stress analysis of open caissons with roof is carried out in this paper. The dynamic stress distribution of open caissons with roof caving is studied. The effects of dynamic stress peak and roof height difference are discussed The results show that the equivalent stress varies nonlinearly along both sides of the center of the perforated plate, which provides a reference for the structural design of open caisson.