This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Noise Analysis of Automotive Alternators
Technical Paper
1999-01-1712
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
An extensive experimental study of noise generating mechanisms of two production models of automotive alternators is presented. It was established that aerodynamic noise (generated by cooling fans) is dominating at high speeds (above 3,000 rpm), while electromagnetic noise is the most intensive at low rpm. Two directions of noise reduction are proposed and validated: reduction of noise levels generated by alternators to be achieved by using axial flow fans for cooling instead of presently used bladed discs, and radical reduction of operating speed of alternators by using variable transmission ratio accessory drives.
Recommended Content
Technical Paper | Noise Generating Mechanisms of Vehicle Alternators |
Technical Paper | Production NVH Monitoring and Application on a Window Regulator Assembly Line |
Technical Paper | Transmission Noise Reduction |
Authors
Citation
Wu, S., Rivin, E., and DiSalvo, M., "Noise Analysis of Automotive Alternators," SAE Technical Paper 1999-01-1712, 1999, https://doi.org/10.4271/1999-01-1712.Also In
References
- Fey, V. R. Rivin, E. I. “The Science of Innovation,” 1997 The TRIZ Group W. Bloomfield, Michigan 80