大开口船型波浪弯/扭矩间接监测方法  

Research on the indirect monitoring method of wave bending/torque for large-opening ships

作　　者：范鑫杨 李辉 张猛 曲先强 FAN Xinyang;LI Hui;ZHANG Meng;QU Xianqiang(Yantai Research Institute and Graduate School of Harbin Engineering University,Harbin Engineering University,Yantai 264000,China;Guangdong Haizhou Offshore Windpower Research Center Co.,Ltd.,Zhanjiang 524000,China)

机构地区：[1]哈尔滨工程大学烟台研究院,山东烟台264000 [2]广东海装海上风电研究中心有限公司,广东湛江524000

出　　处：《哈尔滨工程大学学报》2023年第2期190-196,共7页Journal of Harbin Engineering University

基　　金：山东省自然科学基金项目(ZR2022QE106)。

摘　　要：为准确得到大开口船型波浪弯/扭矩监测结果,本文基于船体扭转基本理论研究了大开口船型波浪弯/扭矩间接监测方法。根据船中横剖面弯/扭矩与结构纵向应变之间的关系,提出了一种联合双剖面监测法,并用数值方法建立了波浪弯/扭矩间接监测的数学模型,通过多次数值模拟验证了所识别波浪弯/扭矩的准确性。在联合双剖面监测法中,同时监测船体结构2个邻近的横剖面,分别计算两横剖面的双力矩、弯矩和自由扭转扭矩,得到中间剖面的波浪弯/扭矩。数值模拟结果表明:联合双剖面监测法能够准确地反求出波浪弯/扭矩,特别是在波高较大的情况下反求精度更高。In this paper,the indirect monitoring method of wave bending/torque is studied based on hull torsion theory to accurately obtain the wave bending/torque monitoring of large-opening ships.According to the relationship between the bending/torque of the mid-ship cross section and the longitudinal strain of the hull structure,a combined double-section monitoring method is proposed,and a mathematical model of indirect monitoring of wave bending/torque is established numerically.The accuracy of identified wave bending/torque is verified through several numerical simulations.In the combined double-section monitoring method developed in this study,two adjacent cross sections of the hull structure are monitored simultaneously.The bi-moment,bending moment,and torque moment of the free torsion of each hull structure monitoring cross section are calculated to obtain the wave bending/torque of the middle section.The numerical simulations demonstrate that the combined double-section monitoring method can accurately provide wave bending/torque,particularly the calculation accuracy is higher as the wave height is higher.

关 键 词：船体扭转基本理论 联合双剖面监测方法 波浪弯/扭矩间接监测 数值模拟验证 大开口船型 载荷识别 长基线应变仪 双力矩 

分 类 号：P751[交通运输工程—港口、海岸及近海工程]