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Experimental Root Cause Diagnosis for Scooter NVH Problem
Technical Paper
2003-01-1426
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This paper focuses on the diagnostic methodology and troubleshooting process for the coast down noise annoyance for two types of scooters. Both the subjective noise assessment and objective evaluation of the gearbox near field noise and gearbox case vibration were performed in this work. The objective evaluation adopted time analysis, spectrum analysis, order analysis and binaural analysis to identify the acoustic characteristics of the noise annoyance. In addition, the excellent correlation between gearbox case vibration and abnormal coast down noise was confirmed. The diagnostic results show that the noise annoyance is resulted from the improper assembly clearance tolerance between specific parts for Type A scooter, and from the improper clearance between specific parts for Type B scooter.
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Authors
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Citation
Jen, M. and Lu, M., "Experimental Root Cause Diagnosis for Scooter NVH Problem," SAE Technical Paper 2003-01-1426, 2003, https://doi.org/10.4271/2003-01-1426.Also In
References
- Lu, M.-H. Jen, M.U. “Diagnosis of Vehicle Interior Noise by an Experimental Approach,” The 9th International Pacific Conference on Automotive Engineering Indonesia Nov. 1997
- Jen, M.U. Lu, M.-H. “Experimental Investigation of a Mini-van Interior Booming problem,” Inter-Noise 97 Hungary August 1997
- Lu, M.-H. Jen, M.U. “Intake/Exhaust Noise Reduction with Rig Test Optimization - Case Studies” SAE 1999 Transactions- Journal of Passenger Cars SAE 2507 2514
- Jen, M.U. Lu, M.-H. “Refinements of a Production Muffler to Meet the Defined Exhaust Noise Target,” Inter-Noise 2001 Holland August 2001
- Lu, M.-H. Jen, M.U. “Identification of Motorcycle Injector Noise by Sound Quality Analysis” Inter-Noise 2000 France August 2000