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机器隔声罩声传递三维理论分析

Analysis and Experiments on Three-dimension of Sound Trauamission of Machine Enclosure
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摘要 通常国内隔声罩设计均是以一维声波方程为理论基础.根据经验公式计算,本文通过对波动声学中三维线性波动方程详细分析,得出了精确的理论解.并编制一套相应的计算程序.通过在半消声室内实验验证表明:理论计算值与实验测试值有较好的吻合. Most of the previous designs of machine enclosure were calculated according to the experical formula. Some publications at home were exclusively written on the basis of the theory of one dimension wave equation. In this paper, three-dimension equation has been analyzed in detail and its accurate solution has been obtained. The author presents a program which accods with the model established by the theoretical design. The experiments performed in a semiamechoic chamber show that the trend of the calculated results are in accodance with that of the experimental data.
作者 张红岩
出处 《焦作工学院学报》 1996年第1期44-48,共5页 Journal of Jiaozuo Institute of Technology(Natural Science)
关键词 隔声罩 插入损失 驻波 机器 声传递 噪声控制 enclosure three dimension insertion loss stand wave
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