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基于复合材料的高余压座舱设计

, PP. 99-103

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Abstract:

面对我国军机座舱余压偏低现象,设计高余压座舱实现高工效、舒适座舱环境.为解决座舱质量和环境工效之间的矛盾,选用复合材料代替目前铝合金材料,应用First-OrderRadio优化算法实现优化.目前座舱余压40kPa,为提高工效,余压提高到55kPa,余压值增加37.5%,座舱质量反减轻26.1%,使得矛盾得到协调.基于描述材料特性的本构关系,建立分析材料性能参数对结构影响的有限元模型,并将灵敏度分析Morris算法引入模型参数分析中,结果表明,影响结构的主要参数是蒙皮及环向加强筋的弹性模量和泊松比.基于分析结果对材料设计提出了一些建议.所得结论可为高余压座舱设计提供参考.

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