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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。
Shaking table test was carried out on a beam-plate composite structure, and finite element-statistical energy (FE-SEA) hybrid modeling analysis of the structure vibration test was carried out. The beam connecting the beam plate composite structure and the vibration table tooling was established as a ring beam The energy subsystem is statistically statically constrained to achieve the acceleration loading of the shaker. The influence of the internal acoustic cavity and the external air on the vibration of the structure is analyzed. The calculated result of FE-SEA hybrid model is compared with the experimental results. The results show that the FE-SEA hybrid model for the vibration test of beam-slab composite structures basically agrees well with the experimental results, which verifies the validity of the H-mixed model for the vibration analysis of beam-slab composite structures.