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复杂组合结构振动试验的有限元-统计能量混合建模与分析 被引量:3

Research on Hybrid FE-SEA Method for Vibration of Complex Built-up Structure
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摘要 对某一梁板组合结构进行振动台试验,并对该结构振动试验进行有限元-统计能量(FE-SEA)混合建模分析,将梁板组合结构与振动台工装连接的梁建立为环形梁统计能量子系统,从而对其施加约束来实现振动台加速度载荷的施加。分析了内声腔以及外部空气对结构振动的影响,并将有限元-统计能量(FE-SEA)混合模型计算结果与试验结果进行了对比分析。结果表明,梁板组合结构振动试验的FE-SEA混合模型计算结果与试验结果基本吻合,验证了使用H-混合模型方法进行梁板组合结构振动分析的有效性。 A hybrid FE-SEA model of a beam-plate built-up structure is developed for response prediction in vibration testing.Theacceleration loads are applied to the model.The influence of the ambient air on the response of the structure is analyzed.The resultsobtained by the model and experiments are compared.The hybrid FE-SEA method is reliable for the mid-frequency vibration problemsof the beam-plate built-up structure.
作者 张永杰 陈璐 王喆 秦朝红 Zhang Yong-jie;Chen Lu;Wang Zhe;Qin Zhao-hong(Beijing Institute of Structure and Environment Engineering,Beijing,100076)
出处 《导弹与航天运载技术》 CSCD 北大核心 2017年第1期93-96,共4页 Missiles and Space Vehicles
关键词 梁板组合结构 振动试验 有限元-统计能量混合模型 Beam-plate built-up structure Shaking table experiment Hybrid FE-SEA method
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