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Application of Experimental Transfer Path Analysis and Hybrid FRF-Based Substructuring Model to SUV Axle Noise
Technical Paper
2005-01-1833
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This paper describes an axle gear whine noise reduction process that was developed and applied using a combination of experimental and analytical methods. First, an experimental Transfer Path Analysis (TPA) was used to identify major noise paths. Next, modeling and forced response simulation were conducted using the Hybrid FEA-Experimental FRF method known as HYFEX [1]. The HYFEX model consisted of an experimental FRF representation of the frame/body and a finite element (FE) model of the driveline [2] and suspension. The FE driveline model was calibrated using experimental data. The HYFEX model was then used to simulate the axle noise reduction that would be obtained using a modified frame, prior to the availability of a prototype. Hardware testing was used as the final step in the process to confirm the results of the simulation.
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Citation
Gehringer, M., "Application of Experimental Transfer Path Analysis and Hybrid FRF-Based Substructuring Model to SUV Axle Noise," SAE Technical Paper 2005-01-1833, 2005, https://doi.org/10.4271/2005-01-1833.Also In
SAE 2005 Transactions Journal of Passenger Cars: Mechanical Systems
Number: V114-6; Published: 2006-02-01
Number: V114-6; Published: 2006-02-01
References
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- Sun Z. Steyer G. Ranek M. FEA Studies on Axle System Dynamics SAE Paper 2002-01-1190
- LMS Application Note, Transfer Path Analysis - The Qualification and Quantification of Vibro-acoustic Transfer Paths LMS International www.lmsna.com
- LMS Application Note, FRF-Based Substructuring Overview and Theory LMS International www.lmsna.com
- Williams J.S. Wilson B.K. Hanner D.T. Measurement of the Rotational Vibrations of RWD Output Shafts and Characterization of the Resultant Effect on Passenger Perceived Noise SAE Paper 972031
- Rao M.D. Gruenberg S. Torab H. Measurement of Dynamic Properties of Automotive Shock Absorbers for NVH SAE Paper 1999-01-1840