摘要
本文探讨复合材料高速船极限承载能力与可靠性。将Johnson梁柱极限强度公式推广应用于复合材料帽形加筋板格的极限强度分析,船体失效定义为船体所遭受的总纵冲击弯矩超过甲板/船底帽形加筋板格的极限强度。采用响应面法分析了复合材料高速船船体的可靠性,并计算了各随机变量的重要性因子和不确定性因子。文中给出的结论对复合材料高速船船体设计和进一步研究具有参考意义。
This paper deals with the ultimate strength and reliability of high-speed ships built in composite materials. The Johnson抯 beam-column formula is extended to estimate the load-capacity of the top-hat stiffened panel. 慒ailure?occurs when the total impact bending moment of the ship exceeds ultimate strength of the top-hat stiffened panel at deck or bottom. The reliability and the uncertainty effects in design variables are quantified by an effective response surface method. Some conclusions are drawn, which can be referred to in high-speed ship design and further study.
出处
《工程力学》
EI
CSCD
北大核心
2002年第2期124-128,共5页
Engineering Mechanics
基金
国家自然科学基金(A10072043)
交能部"通达"计划和武汉市"晨光"计划资助
