环肋圆柱壳肋骨侧向稳定性理论分析  

Theoretical Analysis of Frame Tripping of Ring Stiffened Cylindrical Shell

作　　者：王金[1] 吴梵[1] 张二[1] 滑林 王诚[2] 

机构地区：[1]海军工程大学舰船工程系,武汉430033 [2]后勤工程学院军事土木工程系,重庆401311

出　　处：《船舶工程》2015年第11期10-13,共4页Ship Engineering

摘　　要：根据环肋圆柱壳内置肋骨的侧向失稳特点,考虑肋骨腹板的弯扭变形影响和壳板对肋骨的转动约束影响,研究了肋骨的侧向失稳机理,基于能量法得到了肋骨侧向失稳临界应力的理论计算方法,通过实例建模的方式,将理论结果与有限元仿真结果进行对比分析,验证了该理论计算方法的正确性。According to the characteristics of the lateral instability of the ring stiffened cylindrical shell, the deformation of the rib ＇s sterna and the rotation constraint of the shell plate on the ribs are considered The lateral instability mechanism of the rib is studied Based on the energy method, the theoretical calculation method of the frame tripping critical stress is obtained By the way of example modeling, the theoretical results are compared with the results of finite element simulation analysis, which validates the correctness of the theoretical calculation method

关 键 词：环肋圆柱壳 肋骨 侧向稳定性 能量法 转动约束 临界应力 

分 类 号：U663.2[交通运输工程—船舶及航道工程]