中国舰船研究2024，Vol.19Issue(4)：176-185,10.DOI:10.19693/j.issn.1673-3185.03613
基于数字孪生的海上浮式发电平台连接器应力场预报方法
Digital twin based stress field prediction method for offshore floating power generation platform connectors
摘要
Abstract
[Objectives]When assessing the safety of the connectors of a multi-module offshore floating power generation platform,in order to compensate for the inability to carry out the real-time monitoring of the structural stress field across the whole domain due to a limited numbers of sensor,a digital twin method based on a simulation database is proposed that can rapidly predict the platform's stress field.[Methods]By downgrading the three-dimensional physical model of the connectors to a one-dimensional digital model,the stress field data is interpolated and deduced in digital space,thereby achieving the rapid prediction of the struc-tural stress field across the whole domain and its visual display.[Results]The results show that the simula-tion model is in good agreement with the test results,with a maximum absolute error of 8.61%;for the inter-polation of data under different loading angles,when the interpolation step of the loading angle is 10°,the aver-age absolute error of stress is 1.98%;and for the interpolation of data under different loads,when the interpola-tion step of the load is 10 t,the average absolute error of stress is 1.28%,achieving the rapid prediction and visualization of the connectors'stress field distribution.[Conclusions]The digital twin-based model of connectors can provide useful references for the rapid dynamic perception and scientific prediction of the structural strength of offshore floating power generation platforms.关键词
海上浮式发电平台/连接器/快速预测/数字孪生/降阶模型Key words
offshore floating power generation platform/connector/rapid prediction/digital twin/reduced order model分类
交通工程引用本文复制引用
曹宇,甘霖,张涛..基于数字孪生的海上浮式发电平台连接器应力场预报方法[J].中国舰船研究,2024,19(4):176-185,10.基金项目
大连理工大学工业装备结构分析国家重点实验室开放课题基金资助项目(GZ22113) （GZ22113）
高性能船舶技术教育部重点实验室开放基金课题资助项目(GXNC21112703) （GXNC21112703）
