余世策, 李庆祥, 俞海峰, 吕江, 王彤. 正弦波激励下刚性开孔结构内压响应特性实验[J]. 实验流体力学, 2011, 25(5): 16-20. DOI: 10.3969/j.issn.1672-9897.2011.05.004
引用本文: 余世策, 李庆祥, 俞海峰, 吕江, 王彤. 正弦波激励下刚性开孔结构内压响应特性实验[J]. 实验流体力学, 2011, 25(5): 16-20. DOI: 10.3969/j.issn.1672-9897.2011.05.004
shu
YU Shi-ce, LI Qing-xiang, YU Hai-feng, L(U) Jiang, WANG Tong. Experiment of internal pressure response characteristics excited by sinusoidal external pressure for rigid structure with opening[J]. Journal of Experiments in Fluid Mechanics, 2011, 25(5): 16-20. DOI: 10.3969/j.issn.1672-9897.2011.05.004
Citation: YU Shi-ce, LI Qing-xiang, YU Hai-feng, L(U) Jiang, WANG Tong. Experiment of internal pressure response characteristics excited by sinusoidal external pressure for rigid structure with opening[J]. Journal of Experiments in Fluid Mechanics, 2011, 25(5): 16-20. DOI: 10.3969/j.issn.1672-9897.2011.05.004
shu

正弦波激励下刚性开孔结构内压响应特性实验

Experiment of internal pressure response characteristics excited by sinusoidal external pressure for rigid structure with opening

    摘要
  • 摘要: 利用声音振动发生原理研制了专门用于内压机理研究的实验装置,对单一开孔的刚性结构在正弦波气压激励下的内压动力特性进行了多参数对比实验.实验研究结果表明:开孔结构在外部动压力作用下会发生腔体共振,随开孔面积增大,腔体共振频率增大阻尼比减小;随孔口深度及内部容积增大,腔体共振频率减小阻尼比增大;对于深宽比很小且开孔面积相同的孔口,孔口形状对腔体共振频率影响不大,对阻尼比有一定影响.

     

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