某型海洋打桩锤沉桩过程动力学响应仿真
发布时间：2018-08-12 08:29
【摘要】：基于有限元方法与应力波理论,以近海工程海洋打桩锤为研究对象,分析了沉桩过程中冲击机械系统的动力学响应。基于有限元分析软件LS-dyna,建立某型海洋打桩锤沉桩过程的有限元模型,还原模拟了海洋打桩锤的某次滩涂的施工打桩作业,分析了冲击缓冲装置在海洋打桩锤系统中的作用,讨论了沉桩过程中锤芯和桩内部的能量传递规律,预测了关键部件的动力学响应。有限元预测结果与现场实际沉桩记录充分接近,表明文中建立的模型和仿真结果是正确的。
[Abstract]:Based on the finite element method and the stress wave theory, the dynamic response of the impact mechanical system in the process of piling is analyzed with the offshore engineering pile hammer as the research object. Based on the finite element analysis software LS-dyna, the finite element model of the piling process of a certain type of ocean piling hammer is established, and the construction and piling operation of a certain beach of the ocean piling hammer is reduced and simulated, and the function of the shock buffer device in the marine piling hammer system is analyzed. The law of energy transfer between hammer core and pile during piling is discussed, and the dynamic response of key components is predicted. The result of finite element prediction is close to the actual pile driving record, which shows that the model and simulation results are correct.
【作者单位】： 同济大学机械与能源工程学院;
【基金】：国家自然科学基金项目(51075304,51205292)资助
【分类号】：P751
，
本文编号：2178503
[Abstract]:Based on the finite element method and the stress wave theory, the dynamic response of the impact mechanical system in the process of piling is analyzed with the offshore engineering pile hammer as the research object. Based on the finite element analysis software LS-dyna, the finite element model of the piling process of a certain type of ocean piling hammer is established, and the construction and piling operation of a certain beach of the ocean piling hammer is reduced and simulated, and the function of the shock buffer device in the marine piling hammer system is analyzed. The law of energy transfer between hammer core and pile during piling is discussed, and the dynamic response of key components is predicted. The result of finite element prediction is close to the actual pile driving record, which shows that the model and simulation results are correct.
【作者单位】： 同济大学机械与能源工程学院;
【基金】：国家自然科学基金项目(51075304,51205292)资助
【分类号】：P751
，
本文编号：2178503
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