中国舰船研究2018，Vol.13Issue(3)：90-96,7.DOI:10.19693/j.issn.1673-3185.01135
舰艇气瓶基座结构抗冲击性能评估方法
Shock resistance evaluation method of ship air bottle-base connection structure
郭君 1孙占忠 2黄式璋 1李晓文1
作者信息
- 1. 哈尔滨工程大学船舶工程学院,黑龙江哈尔滨150001
- 2. 中国舰船研究设计中心,湖北武汉430064
- 折叠
摘要
Abstract
[Objectives] As an important component connecting the equipment and structure of a submarine,the shock resistance of the base structure has an important impact on the ship's survivability. It is simple and efficient to calculate the shock resistance of the base and equipment using the equivalent static load method,but it has higher accuracy only if the lower order response is the main failure mode. [Methods] In this paper,the relative error of structural stress between the static G method and Dynamic Design Analysis Method(DDAM) design spectrum method is studied by taking the air bottle-base structure as the object of analysis. When the low order modal mass of the base structure is occupied in different proportions,the relative error and stress distribution between the equivalent static load and DDAM design spectrum method is analyzed. Taking the actual shock environment of the submarine structure as the input load,the equivalent relation between the DDAM design spectrum and actual shock environment is analyzed.[Results] Precise results are obtained by using the static G method when the single modal mass of the ship's equipment structure is relatively large. For equipment constructed on the deck of a submarine, the shock load stipulated in GJB 1060 is basically equivalent to the shock environment when the shock factor is 0.7 and the explosion source is on the same cross-section as the base structure. [Conclusions] This research can provide useful references when selecting shock resistance evaluation methods for shipboard equipment.关键词
潜艇/基座/抗冲击/静G法/DDAM/冲击环境Key words
submarine/base/shock resistance/static G method/Dynamic Design Analysis Method (DDAM)/shock environment分类
交通工程引用本文复制引用
郭君,孙占忠,黄式璋,李晓文..舰艇气瓶基座结构抗冲击性能评估方法[J].中国舰船研究,2018,13(3):90-96,7.
