梁板组合结构的中频振动试验与计算分析

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振动与冲击 ›› 2016, Vol. 35 ›› Issue (13) : 194-200.

论文

梁板组合结构的中频振动试验与计算分析

张永杰陈璐韦冰峰王喆秦朝红

作者信息 +

Experimental and simulation research on mid-frequency vibration of a beam-plate built-up structure

ZHANG Yongjie CHEN Lu WEI Bingfeng WANG Zhe Qin Zhaohong

Author information +

文章历史 +

摘要

针对梁板组合结构的中频振动问题，在混响实验室中进行某一典型梁板组合结构的声振试验，对试验获取的梁和板的加速度响应进行了分析，基于H-混合模型法建立了有限元-统计能量（FE-SEA）混合模型，通过模态试验对模型进行了验证。对混合模型计算的结果进行了分析，并与试验结果进行了对比。得到了内外声场之间通过板结构进行非共振传递和共振传递的声传递规律。FE-SEA混合模型计算与试验结果吻合，验证了使用H-混合模型方法进行中频振动分析的有效性和可靠性。

Abstract

To investigate the vibration problems of beam-plate built-up structure in the mid-frequency domain, a vibro-acoustic testing was performed in the reverberation room. The measured acceleration responses of the structure were obtained and analyzed to update a developed hybrid FE-SEA model. The hybrid FE-SEA predictions showed a good agreement with experimental results. The non-resonant and resonant sound transmission rule between the external acoustic field and internal acoustic cavity were then extracted. The conclusion of the paper validates that the hybrid FE-SEA approach is a reliable and effective method for the mid-frequency vibration problems of beam-plate built–up structure.

导出引用

张永杰陈璐韦冰峰王喆秦朝红. 梁板组合结构的中频振动试验与计算分析[J]. 振动与冲击, 2016, 35(13): 194-200

ZHANG Yongjie CHEN Lu WEI Bingfeng WANG Zhe Qin Zhaohong. Experimental and simulation research on mid-frequency vibration of a beam-plate built-up structure[J]. Journal of Vibration and Shock, 2016, 35(13): 194-200

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