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Issue:
Stress variety in ship structure damaged by different weapons and its effect factors
Author(s):
LIU Yu-qiu
,
ZHANG Jia-zhong
,
HUANG Wen-hu
Pages:
20
-
23,50
Year:
2007
Issue:
1
Journal:
JOURNAL OF HARBIN INSTITUTE OF TECHNOLOGY
Keyword:
破损舰船
;
弯扭耦合
;
外载荷
;
应力变化
;
生命力
;
Abstract:
采用Kollbrunner-Hajdin改进的薄壁梁理论,考虑了破口引起的舰体结构不对称性造成的弯扭耦合及不同剖面的协调问题,用迁移矩阵法计算武器命中后破损舰船的内力,并采用符拉索夫法考虑了武器命中水线以下后破损引起的外载荷变化.通过求解不同武器命中不同位置后的破损船体内力,找出了正应力和剪应力随不同破损位置的变化规律及其影响因素,研究指出计算破损舰船结构应力时必须同时考虑破损引起的结构不对称性、承载力下降和由于进水引起的浮态和载荷变化等各方面的不利影响,从而为舰船破损后的剩余强度研究提供依据.
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