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Advanced Statistical Methods for the Correlation Between Noise and Transmission Error in Gears
Published January 01, 1986 by Yugoslavia Society of Automotive Engineer in Serbia
Manufacturing transmission error is considered one of the most important source of noise during gear operation. In addition to improvements in gear design an important tool to use in order to reduce gear noise is a suitable quality control during gear manufacturing. The measurement of transmission error immediately after manufacturing avoids potentially noisy gears to be assembled into the gear-box. In order to achieve this goal the correlation between transmission error and noise is to be determined. The paper deals with a statistical approach to this problem. On a physical sample of 30 gear-boxes subjectively selected from three classes of different acoustical quality, concerning siren noise, the total transmission error has been measured and recorded. On the processed signals statistical methods of classification and discrimination such as principal components and discriminant analysis have been carried out. The results show that the adopted approach can be profitably used to predict the noise class of an unknown gear-box on which the transmission error has been measured.