船体冰载荷的反演确定法  

Determination of Ice Load on Ship Hull by Inverse Method

作　　者：刘瀛昊 SUOMINEN Mikko KUJALA Pentti 张韩西子 高良田[3] LIU Ying-hao;SUOMINEN Mikko;KUJALA Pentti;ZHANG Han-xi-zi;GAO Liang-tian(China Ship Research and Development Academy,Beijing 100101,China;Department of Applied Mechanics Marine Technology,Aalto University,Espoo 15300,Finland;College of Shipbuilding and Engineering,Harbin Engineering University,Harbin 150001,China)

机构地区：[1]中国舰船研究院,北京100101 [2]阿尔托大学应用力学系船舶技术实验室,埃斯波15300 [3]哈尔滨工程大学船舶工程学院,哈尔滨150001

出　　处：《船舶力学》2023年第6期905-918,共14页Journal of Ship Mechanics

基　　金：国家重点研发计划战略性国际科技创新合作重点专项(2016YFE0202700)。

摘　　要：由于船体结构受到的外部载荷及载荷承受能力决定了船体结构的损伤程度,因此船舶在冰区海域航行的安全性与其受到的冰载荷直接相关。本文根据极地科考补给船S.A. Agulhas II的原型测量数据,给出了两种艉肩部冰载荷的反演确定方法:一种为根据试验建立的影响系数矩阵法来确定肋骨处受到的冰载荷,另一种为利用Tikhonov正则化建立的三种离散方式来确定外板区域受到的冰载荷。计算结果表明,这两种方法均能克服数据处理过程中的病态性并得到船体结构的冰载荷。The ice load on a ship hull is directly related to the ship safety during a voyage in ice-cov⁃ered seas.Two inverse methods,influence coefficient matrix method and Tikhonov regularization,are introduced to determine the ice load on the stern shoulder of a polar supply and research vessel with full-scaled measurement data.The influence coefficient matrix method is built up experimentally and used to obtain the ice load on frames while Tikhonov regularization is constituted with three dis⁃cretized approaches and utilized to determine the ice load on the plate field.The results show that both inverse methods could overcome the ill-conditions of processing data and obtain the ice load on ship hull.

关 键 词：冰载荷 原型测量 反演法 载荷离散 

分 类 号：U661.43[交通运输工程—船舶及航道工程]