基于飞行器使用的高压薄壁气瓶的设计可靠性分析  

Design Reliability Analysis on High-Pressure Thin-Wall Cylinder Used in Aircraft

作　　者：卢猛[1] 杨美娟[1] 林乐刚[1] 

机构地区：[1]中国空空导弹研究院凯迈气源

出　　处：《航空制造技术》2015年第7期68-71,共4页Aeronautical Manufacturing Technology

摘　　要：本文对飞行器使用的承受内压的薄壁气瓶设计计算公式进行了分析,结合可靠性和概率设计理论,考虑压力、径比和材料性能等设计参数的不确定性,应用几个不同的强度设计理论,建立相应失效极限状态方程。之后对高压薄壁气瓶在相同设计输入下的可靠度进行了计算和对比分析,并对设计参数在不同强度设计理论下的敏感性进行了分析。Calculation formulas of internal pressure thin-wall cylinder used in aircraft are analyzed, combining with reliability and probability design theory, and considering the uncertainty design parameters of presstire, diameter ratio and material properties, then a corresponding failure limit state equation is set up using several different intensity design theory. The reliability of high-pressured thin-wall cylinder under the same de- sign input is calculated and analyzed, and the sensitivity of the design parameters under different strength design is also analyzed.

关 键 词：高压薄壁 气瓶 参数敏感性 可靠性分析 

分 类 号：V229[航空宇航科学与技术—飞行器设计]