This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
A FEA based Procedure to Perform Statistical Energy Analysis
Technical Paper
2003-01-1553
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
A technique which uses Finite Element Analysis (FEA) to derive important parameters involved in SEA (Statistical Energy Analysis) is discussed. Application of the method to a variety of structures has yielded good correlation with experimentally generated results. SEA parameters including Coupling Loss Factors (CLFs), modal densities, and subsystem equivalent masses were obtained. The technique has the advantage of incorporating structural detail to enhance SEA predictions at lower frequencies where global modes are important, and it can be applied early in the design phase since no hardware is required. With this study, SEA is more readily applied to structure-borne noise problems in vehicles.
Recommended Content
Topic
Citation
Yan, H. and Parrett, A., "A FEA based Procedure to Perform Statistical Energy Analysis," SAE Technical Paper 2003-01-1553, 2003, https://doi.org/10.4271/2003-01-1553.Also In
References
- Lyon R.H “Statistical Energy Analysis of Dynamical Systems” MIT Press 1975
- Lyon R.H. DeJong R.G. Theory and Application of Statistical Energy Analysis 2nd Butterworth Heinemann 1995
- Keane A.J. Price W.G. Statistical Energy Analysis: An Overview with Applications in Structural Dynamics Cambridge University Press 1994
- Manning, J “Formulation of SEA Parameters using Mobility Functions” Philosophical Transactions of the Royal Society of London 346 477 488 1994
- Lalor, N. “Practical considerations for the measurements of internal and coupling loss factors on complex structures” ISVR Technical Report No. 182 June 1990
- DeLanghe K. “High Frequency Vibrations: Contributions to Experimental and Computational SEA Parameter Identification Techniques” Catholic Univ. Leuven Belgium Feb. 1996
- Parrett, A.V. Hicks, J.K. Burton, T.E. Hermans, L. “Statistical Energy Analysis of Airborne and Structure-borne Automobile Interior Noise” SAE Paper 97NV172
- Parrett, A. Yan, H “Improving the Application of Statistical Energy Analysis to Vehicle Interior Noise: Generating Coupling Loss Factors with FEA” 1 st GM CAE Conference June 17-18 1998 Pontiac, MI
- Yan, H. Parrett, A. Nack, W.V. “Statistical Energy Analysis by Finite Element for Mid Frequency Vibrations” Finite Elements in Analysis and Design 35 2000
- Yan Harold Hongyu Parrett Alan “Calculation of Statistical Energy Analysis Parameters using Finite Element Analysis” Proc 2002 International Congress and Exposition on Noise Control Engineering Dearborn, MI, USA