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Investigation of Gearbox Noise and Comparison of Varying Transfer Path Analysis Methods
ISSN: 0148-7191, e-ISSN: 2688-3627
Published June 05, 2017 by SAE International in United States
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Structure borne noises can be transmitted to interior cabin via physical connections by gearbox as well as other active components. Experimental Transfer Path Analysis (TPA) Methods are utilized to investigate main paths of vibrations which are eventually perceived as noise components inside the cabin. For identifying the structure and air borne noise transfer paths in a system, Matrix Inversion (MI), Mount Stiffness (MS), Operational Transfer Path Analysis (OTPA) and Operational Path Analysis with Exogenous Inputs (OPAX) Methods exist. In this study, contribution ranking of transmission paths from active system components through the physical connections into the interior cabin are investigated by MI and OPAX Methods and finally a comparison of them is presented based on the accuracy of obtained results. The modifications are applied on dominant transfer paths which are determined by the mentioned methods above, respectively. Thus, the accuracy of these two methods are investigated on vehicle level NVH tests while observing the variations in the interior cabin noise level.
CitationTosun, M., Yildiz, M., and Ozkan, A., "Investigation of Gearbox Noise and Comparison of Varying Transfer Path Analysis Methods," SAE Technical Paper 2017-01-1867, 2017, https://doi.org/10.4271/2017-01-1867.
Data Sets - Support Documents
|[Unnamed Dataset 1]|
- Tsuji, H. and Nakano, K., "Experimental Transfer Path Contribution Study with the Projected Operational Forces Estimated from the Responses," SAE Int. J. Passeng. Cars - Mech. Syst. 9(2):465-474, 2016, doi:10.4271/2016-01-1125.
- Curtis, S., Pears, J., Palmer, D., Eccles, M. et al., "An Analytical Method to Reduce Gear Whine Noise, Including Validation with Test Data," SAE Technical Paper 2005-01-1819, 2005, doi:10.4271/2005-01-1819.
- Kanda, Y., Saka, T., Fujikawa, M., Ando, K. et al., "Experimental Transfer Path Analysis of Gear Whine," SAE Technical Paper 2005-01-2288, 2005, doi:10.4271/2005-01-2288.
- Janssens, K., Gajdatsy, P., Croufer, C., and Van der Auweraer, H., "A Novel Transfer Path Analysis Method Delivering a Fast and Accurate Noise Contribution Assessment," SAE Technical Paper 2010-36-0529, 2010, doi:10.4271/2010-36-0529.
- Van de Ponseele P., Van der Auweraer H., Janssens K., ‘’Source-Transfer-Receiver approaches: a review of methods’’, ISMA2012, 2012.