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Experimental Approach For Solving Side Band Noise of Miniature Planetary Gearbox
Experimental Approach For Solving Side Band Noise of Miniature Planetary Gearbox
Vibration and noise spectra from miniature planetary transmissions commonly exhibit components at distinct frequencies around the gear mesh (tooth passing) frequency and its higher harmonics, called modulation sidebands. They constitute a significant portion of the vibration and noise generated by the transmission. Sidebands have influence on noise quality measures as well as having great potential to provide valuable clues regarding gear tooth combinations, phasing of planets, manufacturing errors like eccentricity, run out present in the gear set, planet pin position error, etc.
The first critical step in designing and controlling the side band activity of a planetary transmission is to develop a compressive approach to analyze modulation sidebands as well as describing the mechanisms causing sidebands.
Read the full white paper which describes the investigation of side bands, correlation with test results and solutions to minimize the noise.