This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Active Path Tracking - A New Analysis Tool for Vehicle Noise
Technical Paper
2001-26-0045
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Event:
SIAT 2001
Language:
English
Abstract
The effective identification and control of powertrain structure borne harmonic noise is a key to achieve a desired noise quality profile in a vehicle. Much work is being done in this field to refine and develop sound engineering techniques suitable for application at each stage of a vehicle development programme.
For prototype development and trouble shooting, transfer path analysis and source identification techniques are in use today with varying degrees of success and application complexity. Investigation tools which are fast, do not require extensive vehicle dismantling and yet provide reliable answers, will be of value to the NVH and sound quality engineer.
A new Active Path Tracking method is described which is relatively quick and offers practical confirmation of the influence of identified paths. The method involves the novel adaptation of Active Noise Cancellation techniques to the task of source identification. Powertrain mount input forces are derived and their relative importance ranked based upon their ability to recreate the operational sound field under investigation.
Topic
Citation
Rust, A. and Pfluger, M., "Active Path Tracking - A New Analysis Tool for Vehicle Noise," SAE Technical Paper 2001-26-0045, 2001, https://doi.org/10.4271/2001-26-0045.Also In
References
- Brandl, F. K. Biermayer, W. “A New Tool for the Onboard Objective Assessment of Vehicle Interior Noise Quality” Proceedings of the 1999 SAE Noise and Vibration Conference 1999-01-1695
- Elliott, S. J. Stothers, I. M. Nelson, P.A. “A Multiple Error LMS Algorithm and its Application to the Active Control of Sound and Vibration” IEEE Transactions on Acoustics, Speech and Signal Processing ASSP-35 10 Oct 1987
- Bombardier Web Site Gilbert, P. Moller, N. B. Saemann, E-U. “Noise Path Analysis as a Trouble Shooting Tool” Proceedings of ISMA23 1998 2