Dynamic Response of the U-Typed Sandwich Panel Under Explosion Load Based on the SDOF Method  

作　　者：LIU Kun GAO Yu ZHAO Chen-shui WANG Ze-ping 

机构地区：[1]School of Naval Architecture and Ocean Engineering,Jiangsu University of Science and Technology,Zhenjiang 212003,China [2]College of Shipbuilding Engineering,Harbin Engineering University,Harbin 150001,China [3]Qingdao Innovation and Development Center of Harbin Engineering University,Qingdao 266000,China

出　　处：《China Ocean Engineering》2022年第5期814-826,共13页中国海洋工程（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(Grant Nos.51779110 and 51809122);the Natural Science Foundation of Jiangsu Province(Grant No.BK20191461);the Six Talent Peaks Project in Jiangsu Province(Grant No.KTHY-064).

摘　　要：Sandwich panel is commonly used in ship and marine engineering equipment,such as side structure and superstructure deck of a ship,which is of good anti-explosion performance.This paper addresses a study on the dynamic response of the U-typed sandwich panel under explosion load through the numerical simulation and theoretical methods.Based on the orthotropic plate theory,the U-typed sandwich panel is simplified and transformed into a single degree of freedom(SDOF)spring system,the equivalent motion equation of the SDOF system and the expression of triangular explosion load function are established based on the SDOF theory,and the maximum response spectrum of the SDOF system is obtained.Then,the response of the equivalent SDOF system of the U-typed sandwich panel under explosion load is analyzed,and the theoretical results match well with the numerical simulation results,which verifies the accuracy of the theoretical method proposed in this paper.The theoretical method proposed in this paper could have good engineering applications for the structural anti-explosion design,and provide a reference for the evaluation of the anti-explosion performance of ship and offshore platform structures.

关 键 词：U-typed sandwich panel the orthotropic plate theory oil and gas explosion SDOF method dynamic response 

分 类 号：U661.4[交通运输工程—船舶及航道工程] P75[交通运输工程—船舶与海洋工程]