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Engine Roughness: Analysis and Reduction Considering Air- and Structural Borne Noise Paths, Interfaces and Innovative NVH-Parts
Technical Paper
2001-01-1575
ISSN: 0148-7191, e-ISSN: 2688-3627
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Language:
English
Abstract
Roughness applied to automotive acoustic also in respect with diesel and gasoline engines is defined.
Measurement and evaluation technologies and methods in respect of single and multiple sources are discussed and described with applications in a test-vehicle.
Typical airborne and structural borne noise paths and interfaces beginning at the engine and transmitted to the interior will be further described and evaluated.
The adaptation and improvement of interface parts prior identified as a relevant path is discussed and the optimization steps presented in terms of noise-level reduction and/or subjective noise behavior.
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Authors
Citation
Wolf, A. and Portal, E., "Engine Roughness: Analysis and Reduction Considering Air- and Structural Borne Noise Paths, Interfaces and Innovative NVH-Parts," SAE Technical Paper 2001-01-1575, 2001, https://doi.org/10.4271/2001-01-1575.Also In
References
- v. Helmholtz, H. ‘Die Lehre von den Tonempfindungen als physiologische Grundlage für die Theorie der Musik’ F. Vieweg & Sohn Braunscheig 1863
- Zwicker, E. Terhardt, E. ‘Analytical expression for criticalband rate and critical bandwidth as a function of frequency’ J. Acoust. Soc. Amer. 68 1980
- Aures, W. ‘Berechnungsverfahren für den sensorischen Wohlklang beliebiger Schallsignale’ Acustica 59 1985
- Werkmann, M. ‘Rauher Motorlauf’ Abschlussbericht FVV Vorhaben 567 1996