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完成机载低温液氢储罐的基本结构设计,通过设计使用新型绝热支撑结构,解决了传统支撑结构热流量过大的问题,通过薄膜容器理论和有限元数值模拟方法对储罐进行强度计算与校核,使用赫兹接触理论与ANYSY数值模拟两种方法对绝热支撑进行结构分析并通过拉伸实验校核强度。为壳体接管接柱结构和点接触式支撑及类似轴承结构提供了一套简单有效的分析方法。研究结果表明:点接触式支撑结构最大应力比传统支撑结构大9倍,支撑结构和储罐可以满足强度要求。
The basic structural design of the cryogenic liquid hydrogen storage tank is completed. The new heat insulation support structure is designed to solve the problem of excessive heat flow in the traditional support structure. The strength of the tank is calculated by the theory of the thin film container and the finite element method Check, the use of Hertz contact theory and ANYSY numerical simulation of two methods of structural analysis of adiabatic support and tensile strength test by checking. It provides a simple and effective analysis method for the shell to take over the post structure and point contact support and similar bearing structure. The results show that the maximum stress of the point-contact support structure is 9 times larger than the traditional support structure, and the support structure and the storage tank can meet the strength requirements.