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Excitation Force Analysis of a Powertrain Based on CAE Technology  

Kim, Sung-Jong (Department of Mechanical Engineering, Inha Univ.)
Lee, Sang-Kwon (Department of Mechanical Engineering, Inha Univ.)
Publication Information
Journal of the Korean Society for Precision Engineering / v.25, no.12, 2008 , pp. 107-116 More about this Journal
Abstract
The excitation force of a powertrain is one of major sources for the interior noise of a vehicle. This paper presents a novel approach to predict the interior noise caused by the vibration of the power rain by using the hybrid TPA (transfer path analysis) method. Although the traditional transfer path analysis (TPA) is useful for the identification of powertrain noise sources, it is difficult to modify the structure of a powertrain by using the experimental method for the reduction of vibration and noise. In order to solve this problem, the vibration of the power rain in a vehicle is numerically analyzed by using the finite element method (FEM). The vibration of the other parts in a vehicle is investigated by using the experimental method based on vibrato-acoustic transfer function (VATF) analysis. These two methods are combined for the prediction of interior noise caused by a power rain. Throughout this research, two papers are presented. This paper presents a simulation of the excitation force of the power rain exciting the vehicle body based on numerical simulation. The other paper presents a prediction of interior noise based on the hybrid TPA, which uses the VATF of the car body and the excitation force predicted in this paper.
Keywords
FEM; Mount Force Simulation; EMA; Hybrid TPA;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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1 Lalor, N. and Priebsch, H. H., 'The prediction of low- and mid-frequency internal road vehicle noise: a literature survey,' Proc. Instn. Mech. Engrs.(D), Vol. 221, No. 3, pp. 245-269, 2007   DOI   ScienceOn
2 Blakely, K., 'Updating MSC/NASTRAN Models to Match Test Data,' The MSC 1991 World Users' Conf., Proc., Vol. 2, No. 50, 1991
3 Walter, O. and Kaiser, H. J., 'Finite Element Analysis of Dynamic Behavior of an Engine Block and Comparison with Experimental Modal Test Results,' MSC World 1990 World Users Conf., Proc., Vol. 1, No. 14, 1990
4 Winterer, S. and Bretl, J., 'Efficient design studies using eigensolution reanalysis,' SAE Paper No. 931297, 1993
5 Kim, S. J., Lee, J. Y. and Lee, S. K., 'Noise Refinement of a Vehicle by Reduction of the Axle Gear Whine Noise Based on Structural Modification Using FEM and BEM,' Int. J. Automotive Technology, Vol. 8, No. 5, pp. 605-614, 2007   과학기술학회마을
6 Huegen, S., Warren, G.., Menne, R., Wolschendorf, J., Schwaderlapp, M. and Schoenherr, C., 'A new 2.3L DOHC engine with balance shaft housing-step of refinement and optimization,' SAE Paper No. 970921, 1997
7 Auweraer, H. V., Mas, P., Dom, S., Vecchio, A., Janssens, K. and Ponseele, P. V., 'Transfer path analysis in critical path of vehicle refinement: the role of fast, hybrid and operational path analysis,' SAE Paper No. 2007-01-2352, 2007
8 Sakai, T. and Sakamoto, A., 'Improvement of engine noise for the 2003 Accord using hybrid CAE technology,' SAE Paper No. 2003-01-1427, 2003
9 Yi, S. J. and Seo, J. M. 'Powerflow simulation software of the automotive powertrain through the combination of the component(I):Development of the automatic powerflow generation module,' J. of KSPE, Vol. 21, No. 2, pp. 43-51, 2004
10 Nakamura, H., 'A low vibration engine with unique count-balance shafts,' SAE paper No. 760111, 1976
11 Lee, S. K., 'Identification of a vibration transmission path is a vehicle by measuring vibrational power flow,' Proc. Instn. Mech. Engrs.(D), Vol. 218, No. 2, pp. 167-175, 2007
12 Shung, H. S. and Donald, J. N., 'Assessment of a Vehicle Concept Finite-Element Model for Predicting Structural Vibration,' SAE Paper No. 2001-01-1402, 2001
13 Seki, Y., Suzuki, T., Tsukahara, M. and Takahashi, Y., 'How to Predict powertrain vibration at the engine mounting points under running conditions,' SAE Paper No. 2001-01-1592, 2001