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A platform for research: civil engineering, architecture and urbanism
Calculation method for ocean engineering foundation structure-soil interaction damping
The invention relates to a calculation method for ocean engineering foundation structure-soil interaction damping. The calculation method comprises the following steps that a soil unit damping ratio-cyclic shear strain curve is obtained; establishing a finite element analysis model; constructing a static implicit analysis step; defining interaction and boundary conditions among the models; carrying out grid division and calculation; post-processing and extracting data such as stress and strain; calculating elastic strain energy and dissipated energy; and finally obtaining the damping ratio. Compared with the prior art, the method has the advantages that the interaction between the soil body and the structure is truly simulated through the finite element analysis model, the actual soil layer characteristics, the fine mesh and the contact model, the characteristics of different soil body materials are considered, and the proper constitutive model is adopted, so that the calculation accuracy is improved; and an effective tool for optimizing the structural design and improving the safety and the economical efficiency is provided for engineers.
本发明涉及一种面向海洋工程基础结构‑土相互作用阻尼的计算方法，包括以下步骤：获取土单元阻尼比‑循环剪应变曲线；建立有限元分析模型；构建静力隐式分析步；定义模型间相互作用和边界条件；进行网格划分和计算；后处理提取应力、应变等数据；计算弹性应变能和耗散能量；最终得到阻尼比。与现有技术相比，本发明通过有限元分析模型，结合实际土层特性，通过精细网格和接触模型，真实模拟土体与结构的相互作用，考虑不同土体材料特性，采用合适的本构模型，提高了计算准确性，为工程师提供了优化结构设计、提升安全性和经济性的有效工具。
Calculation method for ocean engineering foundation structure-soil interaction damping
The invention relates to a calculation method for ocean engineering foundation structure-soil interaction damping. The calculation method comprises the following steps that a soil unit damping ratio-cyclic shear strain curve is obtained; establishing a finite element analysis model; constructing a static implicit analysis step; defining interaction and boundary conditions among the models; carrying out grid division and calculation; post-processing and extracting data such as stress and strain; calculating elastic strain energy and dissipated energy; and finally obtaining the damping ratio. Compared with the prior art, the method has the advantages that the interaction between the soil body and the structure is truly simulated through the finite element analysis model, the actual soil layer characteristics, the fine mesh and the contact model, the characteristics of different soil body materials are considered, and the proper constitutive model is adopted, so that the calculation accuracy is improved; and an effective tool for optimizing the structural design and improving the safety and the economical efficiency is provided for engineers.
本发明涉及一种面向海洋工程基础结构‑土相互作用阻尼的计算方法，包括以下步骤：获取土单元阻尼比‑循环剪应变曲线；建立有限元分析模型；构建静力隐式分析步；定义模型间相互作用和边界条件；进行网格划分和计算；后处理提取应力、应变等数据；计算弹性应变能和耗散能量；最终得到阻尼比。与现有技术相比，本发明通过有限元分析模型，结合实际土层特性，通过精细网格和接触模型，真实模拟土体与结构的相互作用，考虑不同土体材料特性，采用合适的本构模型，提高了计算准确性，为工程师提供了优化结构设计、提升安全性和经济性的有效工具。
Calculation method for ocean engineering foundation structure-soil interaction damping
一种面向海洋工程基础结构-土相互作用阻尼的计算方法
ZHANG YOUHU (author) / GUO PENG (author) / DI TONGYU (author)
2024-08-09
Patent
Electronic Resource
Chinese
| European Patent Office | 2024
| European Patent Office | 2024
Soil-Structure Interaction Analysis for Foundation Engineering
| British Library Conference Proceedings | 2000