波浪作用下开孔沉箱动应力时域特性数值研究

发布时间：2018-04-04 10:51

  本文选题：海岸与近海工程　切入点：开孔沉箱　出处：《工程力学》2017年09期

【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。
[Abstract]:In this paper, the modified smooth particle method (CSPM) and Riemann solution are used to modify the smooth particle hydrodynamics (SPHs) method. The modified SPH numerical method is applied to the study of the interaction between waves and caisson structures.The dynamic stress response of caisson with roof opening is studied in time domain by using the method of complete transient dynamic analysis. The distribution of dynamic stress of caisson with roof opening is studied.The relationship between the peak value of dynamic stress and the influence factors of roof height difference is discussed. The conclusion that the equivalent stress changes nonlinearly from the central position of the perforated plate to the two sides is obtained, which provides a certain reference for the structural design of the caisson.
【作者单位】： 东北电力大学建筑工程学院;大连理工大学土木工程学院;
【基金】：国家自然科学基金项目(51308095,51409045)
【分类号】：P75;TV139.2
，

本文编号：1709636