Accession Number : AD0283757

Title :   INVESTIGATION TO DETERMINE THE EFFECT OF PHASING ON THE NOISE GENERATED BY SPUR GEARS

Corporate Author : BOEING CO MORTON PA VERTOL DIV

Personal Author(s) : MUEHL, C L ; STERNFELD, JR, H

PDF Url : AD0283757

Report Date : Apr 1962

Pagination or Media Count : 67

Abstract : A test program was performed to evaluate the effect of relative gear tooth contact phasing on the acoustical characteristics of a model transmission. It was concluded that within the limitations of the test configuration, the radiated noise frequency characteristics for a constant tooth contact frequency are a function of the number of gear sets, while the amplitude and directional characteristics are a function of their relative phasing. It was also noted that changes in the torsional elastic properties of the system produced significant changes in radiated noise.

Descriptors :   *GEAR NOISE, ACOUSTICS, CALIBRATION, INSTRUMENTATION, PHOTOGRAPHS, TEST EQUIPMENT, VIBRATION

Subject Categories : Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE