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基于FE-SEA混合法的飞行器结构声振响应分析与试验验证

DOI: 10.11728/cjss2014.03.327, PP. 327-331

Keywords: 飞行器,FE-SEA混合法,声振响应,试验验证

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Abstract:

以美国X-43A飞行器为研究对象,基于有限元与统计能量分析混合法FE-SEA,建立飞行器结构声振耦合动力学模型.着重研究飞行器噪声致振的性质及规律,得到飞行器空腔结构在宽频外噪声场激励下的结构振动响应及舱内噪声场响应,并对FE-SEA在宽频区间中段的计算结果进行分析.通过噪声试验验证了理论与数值计算的可靠性.

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