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The Effects of Bushing Degradation on Vehicle High Mileage NVH Performance
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English
Abstract
High mileage NVH performance is one of the major concerns in vehicle design for long term customer satisfaction. Elastomeric components such as suspension bushings, engine mounts and tires function as vibration isolators in a vehicle. High mileage tends to cause the degradation of these components which in turn affects vehicle overall NVH performance. The present paper discusses the characteristics of bushing degradation based on laboratory bushing test data. Vehicle subjective evaluation and CAE modeling methods are used to develop a fundamental understanding of the effects of bushing degradation on vehicle NVH performance. The concept and analysis methodology are demonstrated using the front and rear suspension strut mounts and tire inputs which simulate road excitations but they are valid for other elastomeric components such as engine mounts and excitations. The knowledge derived in the study can be used as a generic guideline in designing vehicles for high mileage NVH robustness.
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Citation
Kuo, E., Li, D., and Loh, W., "The Effects of Bushing Degradation on Vehicle High Mileage NVH Performance," SAE Technical Paper 960732, 1996, https://doi.org/10.4271/960732.Also In
References
- Pottinger M. G. Marshall K. D. “The Effect of Tire Aging on Force and Moment Properties of Radial Tires,” SAE Paper 810066
- Dunn J. W. Olantunbosun O. A. Mills B. “Realistic Prediction and Control of Vehicle Noise Resulting from Road Inputs,” ASME Paper 79-DET-75 1979
- MacNeal R. H. Citerley R. Chargin M. “A New Method for Analyzing Fluid-Structure Interaction Using MSC/NASTRAN,” MacNeal-Schwendler Corporation Document 1980
- Borders S. G. Harris R. R. “Modeling Guidelines Book - Low Frequency NVH,” Ford Advanced Vehicle Systems Engineering Document 1994