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Virtual NVH Prototyping of Fuel Components Design - Focus on High Pressure Pumps and SCR Injectors
Technical Paper
2017-01-1840
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Virtual NVH Engineering is going to be reviewed in this paper for the development of FIE (fuel injection equipment) components. Some examples based on high pressure pumps and SCR air cooling injectors will illustrate the explanation.
The use of a 3D FEM vibro-acoustic model is essential to support virtual NVH Engineering. Therefore, a review of techniques to study components is done first. Model correlation is also an important topic which will be discussed and which makes any NVH engineer confident in using a model instead of real HW. It is quite challenging to establish these models, as they must mimic the entire physical phenomenon of real structure borne hardware sound in the whole audible frequency range. Limitations of models are also identified and allow answering one true question: Should we stay considering only each component separately or as an assembly of parts of a larger system in the development process?
Once a model of the studied component or system is established, some comparisons of variants can be initiated in the virtual domain. Standard spectrum analysis can be completed with psychoacoustic criterion to better judge the quality of the predicted sound by simulation and to decide for the best design solution.
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Citation
Bourdon, T., Weber, R., and Massinger, J., "Virtual NVH Prototyping of Fuel Components Design - Focus on High Pressure Pumps and SCR Injectors," SAE Technical Paper 2017-01-1840, 2017, https://doi.org/10.4271/2017-01-1840.Also In
References
- Cremer L. , Heckl M. , Petersson B.A.T. Structure-Borne Sound Springer 3rd
- Avitabile Peter Experimental modal analysis Sound & Vibration magazine jan. 2001
- Allemang Randall J. The Modal Assurance Criterion - Twenty years of use and abuse Sound and Vibration August 2003 14 20
- Bourdon T. , Weber R. , Bouete R , Zelmar Ph Structure-borne sound correlation of a Gasoline High Pressure Pump. A Front-Loading digital NVH method to help the design of components SIA, Simulation Congress 2015
- Craig R.R. and Chang C.J. A review of substructure coupling methods for dynamic analysis NASA. Langley Res. Center Advan. in Eng. Sci. 2 CR-2781 393 408 1976
- Balm`es E. Use of generalized interface degrees of freedom in component mode synthesis In Proceedings of the Fourteenth International Modal Analysis Conference Dearborn, MI February 1996
- Tran D.-M. Component Mode Synthesis Methods Using Interface Modes: Application to Structures with Cyclic Symmetry Computers & Structures 79 209 222 2001
- VIZZINI S. CMS methods in complete NVH analysis - Master’s thesis in applied mechanics Sweden 2014
- Dazel O Methodes numériques en synthèse modale. Université du Maine - Faculté des Sciences - Laboratoire d’Acoustique de l’Université du Maine - UMR CNRS 6613
- Spiegel Murray R. Mathematical Handbook of Formulas and Tables, chapter 23, Fourier Series 131 135 McGraw Hill 1968
- ISO 3745:2003 Acoustics: determination of sound power levels of noise sources Precision methods for anechoic and semi anechoic rooms
- ISO 532:1975 Acoustics: Method for calculation loudness level
- Fastl H. , Zwicker E. Psychoacoustics -Facts and Models- Springer 2007