This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
The Application of Superelement Modeling Method in Vehicle Body Dynamics Simulation
Technical Paper
2016-01-8050
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
In this paper, we propose a method of dynamics simulation and analysis based on superelement modeling to increase the efficiency of dynamics simulation for vehicle body structure. Using this method, a certain multi-purpose vehicle (MPV) body structure was divided into several subsystems, and the modal parameters and frequency response functions of which were obtained through superelement condensation, residual structure solution, and superelement data restoration. The study shows that compared to the traditional modeling method, the computational time for vehicle body modal analysis can be reduced by 6.9% without reducing accuracy; for the purpose of structural optimization, the computational time can be reduced by 87.7% for frequency response analyses of optimizations; consistency between simulation and testing can be achieved on peak frequency points and general trends for the vibration frequency responses of interior front row floors under accelerating conditions. The results indicate that the method has good engineering value, and is suitable for the study of dynamics problems of vehicle bodies.
Authors
Citation
Lu, C., Yang, W., Zheng, H., Liang, J. et al., "The Application of Superelement Modeling Method in Vehicle Body Dynamics Simulation," SAE Technical Paper 2016-01-8050, 2016, https://doi.org/10.4271/2016-01-8050.Also In
References
- Afaneh , A. , Abdelhamid , M. , and Qatu , M. Engineering Challenges with Vehicle Noise and Vibration in Product Development SAE Technical Paper 2007-01-2434 2007 10.4271/2007-01-2434
- Albert , A. and Schwarz , A. Automated Identification of NVHPhenomena in Vehicles SAE Technical Paper 2011-01-1656 2011 10.4271/2011-01-1656
- Gladwell G.M.L. Branch mode analysis of vibrating systems Journal of Sound & Vibration 1 41 59 1964 10.1016/0022-460X(64)90006-9
- Hurty , W. C. Dynamic analysis of structural systems using component modes AIAA Journal 3 678 685 1965 10.2514/3.2947
- Craig , Roy A new substructure system identification method 36th Structures, Structural Dynamics and Materials Conference 10.2514/6.1995-1298
- Craig , Roy. Coupling of substructures for dynamic analyses -An overview 41st Structures, Structural Dynamics, and Materials Conference and Exhibit 10.2514/6.2000-1573
- Agrawal , O. P. and Kumar , R. A superelement model for analysis of multi-body system dynamics Computers & Structures 32 1085 1091 1989 10.1016/0045-7949(89)90410-0
- Butland , A. and Avitabile , P. A reduced order, test verified component mode synthesis approach for system modeling applications Mechanical Systems and Signal Processing 24 904 921 2010 10.1016/j.ymssp.2009.08.008
- Lu , K. , Liu , Y. , Zhang , W. and Qiu , H. et al. Free-Interface Component Mode Synthesis Method with Link Substructure as Super-Element Procedia Engineering 16 685 694 2011 10.1016/j.proeng.2011.08.1142
- Ding , Z. , Li , L. and Hu , Y. A free interface component mode synthesis method for viscoelastically damped systems Journal of Sound and Vibration 365 199 215 2016 10.1016/j.jsv.2015.11.040
- Unruh , J. F. Finite element subvolume technique for structural-borne interior noise prediction Journal of Aircraft 17 6 1021 1026 1986 10.2514/3.57921
- SUNG , S. H. and NEFSKE , D. J. Component mode synthesis of a vehicle structural-acoustic system model AIAA Journal 24 6 1021 1026 1986 10.2514/3.9379
- Karpel , M. , Moulin , B. and Feldgun , V. Component mode synthesis of a vehicle system model using the fictitious mass method Journal of Vibration and Acoustics 129 1 73 83 2006 10.1115/1.2202156
- Zhang , J. Dynamic analysis and optimization of car's body-inwhite based on superelement approach Journal of Southeast University 20 3 324 327 2004
- Lagache , J. , Assaf , S. and Schulte , C. Finite element synthesis of structural or acoustic receptances in view of practical design applications Journal of Sound and Vibration 310 313 351 2008 10.1016/j.jsv.2007.07.051
- Legay , A. The extended finite element method combined with a modal synthesis approach for vibro-acoustic problems International Journal for Numerical Methods in Engineering 101 329 350 2014 10.1002/nme.4798
- Liu , B. , Zhan , Z. , Zhao , X. , Chen , H. et al. A Research on the Body-in-White (BIW) Weight Reduction at the Conceptual Design Phase SAE Technical Paper 2014-01-0743 2014 10.4271/2014-01-0743