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A Filter Seal Model for Point Mobility Prediction of Air Induction Systems
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 03, 2006 by SAE International in United States
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Virtual design validation of an air induction system (AIS) requires a proper finite element (FE) assembly model for various simulation based design tasks. The effect of the urethane air filter seal within an AIS assembly, however, still poses a technical challenge to the modeling of structural dynamic behaviors of the AIS product. In this paper, a filter seal model and its modeling approach for AIS assemblies are introduced, by utilizing the feature finite elements and empiric test data. A bushing element is used to model the unique nonlinear stiffness and damping properties of the urethane seal, as a function of seal orientation, preloading, temperature and excitation frequency, which are quantified based on the test data and empiric formula. Point mobility is used to character dynamic behaviors of an AIS structure under given loadings, as a transfer function in frequency domain. Point mobility can also be conveniently measured by using an instrumented hammer and accelerometer, and thus used for the correlation of CAE and test results as well. CAE predictions of point mobility results of AIS assemblies, with various design configurations, are investigated to determine the validation of the proposed filter seal model, based on the correlation of the predicted results with their respective experiment ones.
CAE simulation based design examples are presented to demonstrate the benefits of the AIS assembly model, by employing the developed modeling and analysis approaches. In addition to point mobility prediction, the application examples also include the normal modal analysis for stiffness evaluation of AIS assembly products, the dynamic acceleration and stress response simulation for virtual design validation tests, and the fatigue damage evaluation based on dynamic stress and material S-N damage model for durability performance.
CitationSu, H., Moenssen, D., Shaw, C., and Kostun, J., "A Filter Seal Model for Point Mobility Prediction of Air Induction Systems," SAE Technical Paper 2006-01-1209, 2006, https://doi.org/10.4271/2006-01-1209.
- Clough, R.W. Penzien J. “Dynamics of Structures,” McGraw-Hill NY, New York 1975
- Meirovitch, L. “Analytical Methods in Vibrations,” The Macmillan Co. NY, New York 1967
- Thomson, W.T. “Theory of Vibration with Applications,” 3 rd Prentice Hall Englewood Cliffs, New Jersey 1988
- Herting, D. “MSC/Nastran Advanced Dynamic Analysis User's Guide,” MacNeal-Schwendler Corporation 1997
- Kilroy K. “MSC/Nastran Quick Reference Guide,” MacNeal-Schwendler Corporation 2004
- Su, H. “Development of Filter Seal Model for Point Mobility Prediction of Air Cleaner Assemblies,” Visteon Internal Tech Report: D457-04-046 2004
- Su, H. “Parameter Sensitivity Study of Filter Seal Model for Point Mobility Prediction, Based on V229 and U251 AIS Products,” Visteon Internal Tech Report: D457-04-131 2004
- Su, H. Rakheja, S. Sankar, T.S. “Stochastic Analysis of Nonlinear Vehicle Systems Using a Generalized Discrete Harmonic Linearization Technique,” Journal of Probabilistic Engineering Mechanics 6 4 1991 175 183
- Su, H. “Automotive CAE Durability Analysis Using Random Vibration Approach,” MSC 2 nd Worldwide Automotive Conference Dearborn, MI Oct. 2000
- Su, H. Kempf J. Montgomery B. Grimes R. “CAE Virtual Tests of Air Intake Manifolds Using Coupled Vibration and Pressure Pulsation Loads,” SAE paper 2005-01-1071 61 70 April 11 2005
- Su, H. Steinert D. Egle K. Weipert B. “Localized Non-linear Model of Plastic Air Induction Systems for Virtual Design Validation Tests,” SAE paper 2005-01-1516 15 24 April 11 2005