Vibration and noise analysis of a gear transmission systemThis paper presents a comprehensive procedure to predict both the vibration and noise generated by a gear transmission system under normal operating conditions. The gearbox vibrations were obtained from both numerical simulation and experimental studies using a gear noise test rig. In addition, the noise generated by the gearbox vibrations was recorded during the experimental testing. A numerical method was used to develop linear relationships between the gearbox vibration and the generated noise. The hypercoherence function is introduced to correlate the nonlinear relationship between the fundamental noise frequency and its harmonics. A numerical procedure was developed using both the linear and nonlinear relationships generated from the experimental data to predict noise resulting from the gearbox vibrations. The application of this methodology is demonstrated by comparing the numerical and experimental results from the gear noise test rig.
Document ID
19930065970
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Choy, F. K. (NASA Lewis Research Center Cleveland, OH, United States)
Qian, W. (Akron Univ. OH, United States)
Zakrajsek, J. J. (NASA Lewis Research Center Cleveland, OH, United States)
Oswald, F. B. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
August 16, 2013
Publication Date
June 1, 1993
Subject Category
Mechanical Engineering
Report/Patent Number
AIAA PAPER 93-2150
Meeting Information
Meeting: AIAA, SAE, ASME, and ASEE, Joint Propulsion Conference and Exhibit