| 用SEA法研究板及加筋板的隔声量 |
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| 引用本文： | 马建敏,李农胜,肖灿章.用SEA法研究板及加筋板的隔声量[J].西安理工大学学报,1993(3). |
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| 作者姓名： | 马建敏 李农胜 肖灿章 |
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| 作者单位： | 陕西机械学院基础部，陕西机械学院基础部，陕西机械学院基础部 |
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| 摘 要： | 本文对广泛用于工程结构的板和加筋板的隔声量进行了研究。通过对同样声载作用、不同频段的板和加筋板隔声量的实测值和计算值的比较,发现加筋板的隔声量在低频域比板的大,在高频域则相反。本文用统计能量分析的方法,从板和加筋板的能量平衡方程式出发,解释了这一用质量定律不能解释的现象。
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| 关 键 词： | 统计能量分析(SEA) 隔声量 加筋板 辐射阻抗 机械阻尼系数 |
The Sound Transmission Loss of the Panel and the Ribbed Panel Studied Using SEA Method |
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| Ma Jianmin Li Nongsheng Xiao Canzhang.The Sound Transmission Loss of the Panel and the Ribbed Panel Studied Using SEA Method[J].Journal of Xi'an University of Technology,1993(3). |
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| Authors: | Ma Jianmin Li Nongsheng Xiao Canzhang |
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| Institution: | Ma Jianmin Li Nongsheng Xiao Canzhang |
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| Abstract: | The sound transmission loss of a panel excited by high-frequency noise and a rib- bed panel (the skin of an aircraft, the wall plate) was studied using the statistical energy analy- sis method. It was found that under the effect of sound load in the high-frequency realm, the sound transmission loss of the ribbed panel is weaker than that of the excited panel The pres- ent paper explains this phenomenon which can be accounted for with mass law but using the energy balance equation of the ribbed panel. |
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| Keywords: | statistical energy analysis sound transmission loss ribbed panel radiation resistance mechanical damping coefficient |
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