上海交通大学学报 ›› 2024, Vol. 58 ›› Issue (2): 141-146.doi: 10.16183/j.cnki.jsjtu.2022.398

• 船舶海洋与建筑工程 • 上一篇    下一篇

环境载荷逆向识别与虚拟模型试验方法

李旭, 肖龙飞, 魏汉迪(), 吴文成, 朱子扬, 李琰   

  1. 上海交通大学 海洋工程国家重点实验室,上海 200240
    上海交通大学 崖州湾深海科技研究院,海南 三亚 572000
  • 收稿日期:2022-10-12 修回日期:2022-12-30 接受日期:2023-03-03 出版日期:2024-02-28 发布日期:2024-03-04
  • 通讯作者: 魏汉迪,助理研究员;E-mail:weihandi@sjtu.edu.cn.
  • 作者简介:李 旭(1993-),博士生,从事海洋工程模型试验方法研究.
  • 基金资助:
    国家自然科学基金(52031006);国家自然科学基金(51879158);海南省自然科学基金青年基金项目(521QN275)

Inverse Reconstruction of Environmental Loads and Virtual Model Test

LI Xu, XIAO Longfei, WEI Handi(), WU Wencheng, ZHU Ziyang, LI Yan   

  1. State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
    Yazhou Bay Institute of Deepsea Technology, Shanghai Jiao Tong University, Sanya 572000, Hainan, China
  • Received:2022-10-12 Revised:2022-12-30 Accepted:2023-03-03 Online:2024-02-28 Published:2024-03-04

摘要:

提出一种应用于混合模型试验的环境载荷逆向识别与虚拟模型试验方法,可以逆向识别截断模型试验中的环境载荷,进而开展截断水深与全水深虚拟模型试验.环境载荷直接从物理模型试验中分离得到,因此该载荷考虑到了平台六自由度运动之间的耦合作用、破浪砰击等强非线性作用以及流体对浮体的黏性力作用.为验证方法准确性,开展风浪流模型试验,并将虚拟模型试验结果与物理模型试验数据进行比较.研究结果表明,环境载荷逆向识别方法可以准确识别风浪流模型试验的环境载荷.

关键词: 混合模型试验, 系泊系统, 环境载荷识别

Abstract:

Novel methods of inverse reconstruction of environmental loads and virtual model test for hybrid model test are proposed. The environmental loads are extracted from the physical truncated model test, considering the nonlinear effects such as coupling effect among the six-degrees-of-freedom (6 DOF) motions and wave slamming, and viscous force of the fluid. The loads can be further applied to the numerical model in virtual wave basin to conduct virtual model test with truncated and full-depth mooring system. Wave basin tests under combined wave, wind, and current condition are conducted to validate the proposed methods, and the results show that the environmental loads can be accurately reconstructed from the physical model tests.

Key words: hybrid model test, mooring system, reconstruction of environmental load

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