在流水中波结构相互作用的不确定性量化框架.
Xiaoyuan Luo1, Vijay Nandurdikar1, Sang-Ri Yi2
1School of Engineering, University of Manchester, Manchester, UK.
概括
本研究介绍了一种数值方法来量化波结构相互作用 (WSI) 的不确定性. 该方法将波浪建模的光滑粒子水力学 (SPH) 与结构分析的有限元法 (FEM) 结合起来,使得概率响应预测成为可能.
科学领域:
- 流体力学的流体力学
- 结构工程是结构工程.
- 计算科学是一种计算科学.
背景情况:
- 波结构相互作用 (WSI) 对离岸和近岸结构至关重要.
- 现有的数值模型经常忽略波浪和结构参数的不确定性.
- 确定性方法限制了复杂的WSI现象的分析.
研究的目的:
- 开发一个数值框架,用于WSI的不确定性量化.
- 将光滑粒子水力学 (SPH) 与有限元法 (FEM) 进行合分析.
- 预测各种波形条件下的结构的概率力和反应.
主要方法:
- 单向合SPH用于波动力学和FEM用于结构响应.
- 在合的SPH-FEM框架内实施不确定性量化.
- 使用东京波浪流体几何学验证,并与文献数据进行比较.
主要成果:
- 成功量化波结构相互作用力中的不确定性.
- 在破裂和不破裂波下展示概率结构反应.
- 开发的模型显示了未来在WSI中替代模型的潜力.
结论:
- 拟议的数值框架有效量化了WSI中的不确定性.
- 这种方法提供了一个强大的方法来预测结构的概率行为.
- 该研究强调了在设计海洋结构时考虑不确定性的重要性.
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