典型位置处轮印载荷作用下甲板结构弹塑性响应研究  

Study on the Elasto-plastic Response of Deck Structure under Wheel Print Load at Typical Location

作　　者：贺远松[1] 伍友军[1] 朱凌[2,3] 蔡伟[2,3] HE Yuansong;WU Youjun;ZHU Ling;CAI Wei(Marine Design&Research Institute of China,Shanghai 200011,China;Key Laboratory of High Performance Ship Technology,Wuhan University of Technology,Ministry of Education,Wuhan 430063,China;School of Transportation,Wuhan University of Technology,Wuhan 430063,China)

机构地区：[1]中国船舶及海洋工程设计研究院,上海200011 [2]武汉理工大学高性能船舶技术教育部重点实验室,武汉430063 [3]武汉理工大学交通学院,武汉430063

出　　处：《武汉理工大学学报（交通科学与工程版）》2021年第3期487-491,共5页Journal of Wuhan University of Technology（Transportation Science & Engineering）

摘　　要：针对四种典型工况,开展了轮印载荷作用下甲板板架结构动力响应数值仿真研究,讨论了不同工况下相同轮印载荷大小下甲板板架结构弹塑性响应,对比了每种工况下甲板板架结构的应力、应变以及塑性变形情况.结果表明:轮印关于纵向骨材对称纵向布置时,轮印载荷作用下甲板结构塑性变形值最大,此种工况最为危险.此外,针对轮印对称纵向布置工况的最危险情形,运用弹塑性设计方法,基于许可永久变形设计准则,得到了特定轮印尺寸和板架尺寸下甲板板厚设计曲线,并且给出了实际板厚设计案例.Aiming at four typical working conditions,numerical simulation of dynamic response of deck plate frame structure under wheel printing load was carried out.The elastic-plastic response of deck frame structure under different working conditions and the same wheel print load was discussed,and the stress,strain and plastic deformation of deck frame structure under each working condition were compared.The results show that the plastic deformation value of deck structure under the load of wheel printing is the largest when the wheel printing is symmetrically arranged longitudinally with respect to the longitudinal timber,and this condition is the most dangerous.In addition,in view of the most dangerous situation of symmetrical longitudinal arrangement of wheel prints,the design curve of deck thickness under specific wheel print size and plate frame size was obtained by using elastic-plastic design method and based on allowable permanent deformation design criterion,and an actual plate thickness design case was presented.

关 键 词：典型工况 轮印载荷 甲板板架 塑性变形 设计曲线 

分 类 号：U661.7[交通运输工程—船舶及航道工程]