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Influence of Gear Design Parameters on Gearbox Radiated Noise

机译：齿轮设计参数对齿轮箱辐射噪声的影响

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Spur and helical gears were tested in the NASA gear-noise rig to compare thenoise produced by different gear designs. Sound power measurements were performed under controlled conditions for a matrix of operating conditions. Sound power was computed from near-field acoustic intensity scans taken just above the top surface of the gearbox. Test gears included four spur and five helical gear designs. The gears were designed to be as nearly identical as possible except for deliberate differences in tooth geometry and contact ratio. Test results are presented as a function of the gear design and operating conditions in the form of sound power charts and as narrow-band spectra. (AN).

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