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Position: Home > Articles > PRELIMINARY RESEARCH INTO PREDICTING THE NOISE OF TRANSMISSIONS Transactions of the Chinese Society for Agricultural Machinery 1991 (4) 74-79

变速箱噪声预估的初步研究

作  者:
苏清祖;胡铁民
单  位:
江苏工学院
关键词:
拖拉机;变速箱;噪声;预估
摘  要:
用边界元的计算方法预估了上海-50拖拉机变速箱表面辐射噪声,导出变速箱的辐射噪声与模态参数的数学关系,并利用此数学关系对变速箱噪声进行预估。最后用双话筒声强测量仪对变速箱噪声进行实测和用自编的声强软件进行分析,将预估值和实测值比较,结果表明两者还是比较吻合的。
译  名:
PRELIMINARY RESEARCH INTO PREDICTING THE NOISE OF TRANSMISSIONS
作  者:
Su Qingzu Hu Tiemin (Jiangsu Instituie of Technology)
摘  要:
In this paper, the radiated noise of Shanghai-50 tractor's gearbox was estimated using boundary integral equation. The mathmatical relationship between the radiated noise and the structure's inherent modal parameters was deduced and was used to estimated the radiated noise. With dual-microphone measuring method, the sound intensity of the gearbox was analyzed. The sound intensity contour was given out with a IBM computer and a intensity analyzing software programed by ourselves, and results from estimating was very coincident with that from measuring.

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