直升機(jī)設(shè)備安裝平臺(tái)的強(qiáng)度優(yōu)化設(shè)計(jì)

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摘  要：該文以直升機(jī)設(shè)備安裝平臺(tái)為研究對(duì)象，應(yīng)用MSC Patran/Nastran軟件，對(duì)平臺(tái)承受最嚴(yán)重過(guò)載工況下的最大應(yīng)力和屈曲失穩(wěn)系數(shù)進(jìn)行分析，得出各因素對(duì)最大應(yīng)力和屈曲失穩(wěn)系數(shù)的影響。之后通過(guò)OptiStruct對(duì)平臺(tái)構(gòu)型進(jìn)行拓?fù)鋬?yōu)化，確定平臺(tái)最終構(gòu)型。

關(guān)鍵詞：設(shè)備安裝平臺(tái)；有限元方法；拓?fù)鋬?yōu)化；筋條；穩(wěn)定性

中圖分類號(hào)：V243      文獻(xiàn)標(biāo)志碼：A         文章編號(hào)：2095-2945（2024）08-0020-04

Abstract： Taking the helicopter equipment installation platform as the research object， this paper analyzes the maximum stress and buckling instability coefficient of the helicopter equipment installation platform under the most serious overload condition by using MSC Patran/Nastran software， and obtains the influence of various factors on the maximum stress and buckling instability coefficient. After that， the topology of the platform is optimized by OptiStruct to determine the final configuration of the platform.

Keywords： equipment installation platform; finite element method; topology optimization; ribs; stability

隨著科技的不斷進(jìn)步和航空工業(yè)的發(fā)展，直升機(jī)上各產(chǎn)品結(jié)構(gòu)不僅要安全、穩(wěn)定，還要輕量化、低成本。（剩余4226字）