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弹性圆柱壳在轴向冲击载荷和温度耦合作用下的屈曲

Release Time:2019-03-12  Hits:

Indexed by: Journal Article

Date of Publication: 2010-01-01

Journal: 计算力学学报

Included Journals: CSCD、ISTIC、PKU、EI、Scopus

Volume: 27

Issue: 5

Page Number: 759-763

ISSN: 1007-4708

Key Words: 哈密顿体系; 动态屈曲; 圆柱壳; 轴向冲击; 温度

Abstract: 通过引入哈密顿体系,将临界载荷和临界温度及它们所对应的屈曲模态归结为辛体系下的广义本征值和本征解问题.根据辛本征解的正交性和完备性,给出了全部的
   且独立存在的屈曲模态.数值结果表明,在轴向冲击载荷和温度耦合作用下,弹性圆柱壳的屈曲呈现出复杂的模式,温度直接影响冲击临界载荷的大小.随着温度的
   增加,冲击临界荷载降低,最后,文中给出各种条件下的屈曲模态

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