深海环境下集体逃逸舱力学特性分析  

Analysis of Mechanical Property of Collective Escape Capsule in Deep-sea Environment

作　　者：张伟 陈猛[1] 王政[1] 

机构地区：[1]河南科技大学土木工程学院,河南洛阳471023

出　　处：《河南科技大学学报（自然科学版）》2015年第6期26-29,6,共4页Journal of Henan University of Science And Technology:Natural Science

基　　金：国家自然科学基金项目(51208182)

摘　　要：研究了集体逃逸舱耐压结构在深海环境下的力学特性。以新型的变厚度逃逸舱为工程实例,通过有限元计算,分析得到了舱体各不同厚度处的位移、应力分布及其应力最大部位的分布等力学规律。分析结果表明:在静水压力下,舱体的位移以竖向为主,总位移相对较小,刚度满足要求。舱体应力以竖向和切向应力为主,竖向应力以拉应力为主且应力值较大,而切向应力表现为压应力。通过对应力分布规律的分析,所有应力均满足安全要求。The mechanical property of collective escape capsule of pressure hull in deep-sea environment was studied. In the engineering example of a new type of variable thickness escape capsule,the displacement at different thickness,stress distribution and distribution of mechanical stress maximum position in the hull were obtained by finite element analysis. The results show that vertical deformation of capsule turns out to be the major deformation under hydrostatic pressure. The overall deformation is relatively small,and the stiffness of pressure hull meets the requirement. The stress of capsule is dominated by vertical and shear stress. Vertical stress is given priority to tensile stress and its value is at a higher level. Shear stress is mainly compressive stress. By analyzing the stress distribution rule,all the stresses meet the safety requirements.

关 键 词：集体逃逸舱 耐压结构 静水压力 位移 应力 

分 类 号：U662.3[交通运输工程—船舶及航道工程]