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Prediction of Tyre Dynamic Behaviour for NVH and its Experimental Validation in Anechoic Chamber
Technical Paper
2021-26-0303
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
In present scenario, tyre industry is more focused on providing maximum extent of NVH comfort to passengers by improvising the tyre design. Noise contribution from the tyres is classified in to three regions, viz., structure-borne (tyre vibrations), air-borne (tread pattern) and cavity noise (air cavity). In general, a Finite Element (FE) model of tyre provides an inherent advantage of analyzing tyre dynamic behavior. In this paper, an attempt was made to develop a three-dimensional FE tyre model and validate the same through experimental approach. The CAD Model of the tyre was generated through 3D image scanning process. Material property extraction of tyre was carried out by Universal Testing Machine (UTM) to generate Finite Element (FE) model. For validation of tyre FE model, Experimental Modal Analysis (EMA) and Noise Transfer Function (NTF) were conducted. Tyre dynamic properties viz., natural frequencies and mode shapes were extracted by experimental and numerical modal analysis to achieve good accuracy of correlation within ±10%. Further, noise analysis of tyre was simulated and the same was experimentally validated using a tyre test rig inside hemi-anechoic chamber. The change in tyre pressure and load were studied to identify its effect on noise of tyre.
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Citation
R, R., Surkutwar, Y., Patel, K., Jain, S. et al., "Prediction of Tyre Dynamic Behaviour for NVH and its Experimental Validation in Anechoic Chamber," SAE Technical Paper 2021-26-0303, 2021, https://doi.org/10.4271/2021-26-0303.Data Sets - Support Documents
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References
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