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肋骨刚度对环肋圆柱壳屈曲载荷的影响分析 被引量：3

Effect of rib stiffness on buckling load of stiffened cylindrical shells
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摘要 在推导环肋圆柱壳屈曲临界载荷的基础上,通过能量与结构刚度之间的关系,分析了肋骨弯曲刚度、扭转刚度和压缩刚度对环肋圆柱壳失稳载荷的影响.分别折减肋骨弯曲刚度和壳板刚度,研究了不同位置的肋骨在环肋圆柱壳总体稳定性中的作用,并将单根肋骨刚度折减系数转换成所有肋骨的平均折减系数;分析了壳板刚度对环肋圆柱壳总体稳定性的影响,给出了肋骨和壳板刚度同时折减时环肋圆柱壳总体稳定性的计算方法.为环肋圆柱壳的设计以及含缺陷圆柱壳承载能力的研究提供了一种理论参考. Through the relationship between energy and structural stiffness , the effects of bending stiffness , tor-sion stiffness and compression stiffness of ribs on the buckling loads of stiffened cylindrical shells are analyzed based on the critical buckling loads derived in this paper .Then the rib stiffness and shell stiffness are reduced to study the effects of different ribs on general stability of stiffened cylindrical shells and the reduced coefficient of a single rib is transformed to average reduced coefficient of all ribs .The effects of shell stiffness on the general sta-bility of cylindrical shells are analyzed and the calculation method of general stability of cylindrical shells is given with the ribs stiffness and shell stiffness both reduced .This paper can provide a theoretical reference for research of the stability load-carrying capacity of stiffened cylindrical shell with initial imperfection and the design of stiff -ened cylindrical shells .
作者 白旭 李金华 王晓天
机构地区 江苏科技大学船舶与海洋工程学院 山东省科学院海洋仪器仪表研究所 哈尔滨工程大学船舶工程学院
出处 《江苏科技大学学报（自然科学版）》 CAS 2014年第4期307-312,共6页 Journal of Jiangsu University of Science and Technology:Natural Science Edition
基金 国家自然科学基金资助项目(51409128 51409129) 江苏省高校自然科学研究项目资助(14KJB570001)
关键词 静水压力 环肋圆柱壳 屈曲载荷 肋骨刚度 折减刚度法 hydrostatic pressure stiffened cylindrical shells buckling load stiffness of ribs reduced stiffness method
分类号 U663.1 [交通运输工程—船舶及航道工程]
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参考文献13

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共引文献24

同被引文献28

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引证文献3

二级引证文献4

江苏科技大学学报（自然科学版）
2014年 第4期

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