Accession Number : ADA290304

Title :   Comparison of Transmission Error Predictions With Noise Measurements for Several Spur and Helical Gears.

Descriptive Note : Technical memo.,

Corporate Author : NATIONAL AERONAUTICS AND SPACE ADMINISTRATION CLEVELAND OH LEWIS RESEARCH CEN TER

Personal Author(s) : Houser, Donald R. ; Oswald, Fred B. ; Valco, Mark J. ; Drago, Raymond J. ; Lenski, Joseph W.

PDF Url : ADA290304

Report Date : JUN 1994

Pagination or Media Count : 12

Abstract : Measured sound power data from eight different spur, single and double helical gear designs are compared with predictions of transmission error by the Load Distribution Program. The sound power data was taken from the recent Army-funded Advanced Rotorcraft Transmission project Tests were conducted in the NASA gear noise rig. Results of both test data and transmission error predictions are made for each harmonic of mesh frequency at several operating conditions. In general, the transmission error predictions compare favorably with the measured noise levels. (AN)

Descriptors :   *TRANSMISSION GEARS, *GEAR NOISE, TEST AND EVALUATION, COMPUTER PROGRAMS, MATHEMATICAL MODELS, ALGORITHMS, EXPERIMENTAL DATA, COMPARISON, HARMONICS, MESH, LOAD DISTRIBUTION, CORRELATION, ERROR ANALYSIS, ERRORS, NOISE REDUCTION, SOUND PRESSURE, BENDING MOMENTS, GEAR TEETH, MATHEMATICAL PREDICTION.

Subject Categories : Machinery and Tools
      Acoustics
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE