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The Effects of Bushing Degradation on Vehicle High Mileage NVH Performance
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 01, 1996 by SAE International in United States
Annotation ability available
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.
|Technical Paper||Engine Mounting Layout by Air Suspension|
|Technical Paper||Vibro-Acoustic CAE from an Industrial Application Perspective|
|Technical Paper||Prediction of Gear Vibration Transmitted through Engine Mounting System|
CitationKuo, 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.
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