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Rational Reduction of the Number of Spot Welds in the Vehicle Body Considering Durability  

Choi, Noo-Ri (Department of Mechanical Engineering, KAIST)
Ju, Byeong-Hyeon (Department of Mechanical Engineering, KAIST)
Byun, Hyung-Bai (GM Daewoo Auto & Technology)
Kim, Dong-Seok (GM Daewoo Auto & Technology)
Lee, Byung-Chai (Department of Mechanical Engineering, KAIST)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.15, no.2, 2007 , pp. 81-86 More about this Journal
Abstract
We suggest a design method for reducing the number of spot welds in the vehicle body in terms of durability. To reduce the number of spot welds, we use the DOE(Design of Experiments) analysis with two influence indices for the durability and the fatigue life of a spot weld itself. Through the suggested design method, we select spot welds that could be removed without serious reduction of durability of the whole model. We apply this new methodology to the BIW(Body In White) model of a vehicle by choosing some practical parts where durability-related point of view must be considered importantly by experience.
Keywords
Spot welds; Durability; Fatigue life; Design optimization; DOE;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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1 S. U. Ryu and T. S. Lee, 'Development of Optimal Design System for Spot Weld Joints: Part I Optimization Methodology,' Proc. KSME(A), pp.408-413, 1998
2 J. W. Park, S. W. Chae and T. S. Lee, 'Adaptive Finite Element Mesh Construction for Optimal Design of Spot Welding,' Trans. KSME(A), Vol.24, No.7, pp.1763-1770, 2000   과학기술학회마을
3 S. W. Chae, K. Y. Kwon and T. S. Lee, 'An Optimal Design System for Spot Welding Locations,' Finite Elements in Analysis and Design, Vol.38, pp.277-294, 2002   DOI   ScienceOn
4 J. P. Leiva, B. C. Watson, I. Kosaka and G. N. Vanderplaats, 'Dynamic Finite Element Analysis and Optimization in GENESIS,' 9th AIAA/ ISSMO Symposium on Multidisciplinary Analysis and Optimization, 2002
5 N. Choi, B. H. Joo, J. M. Park, J. S. Eom, B. C. Lee, H. B. Byun and D. S. Kim, 'Design of Spot Weld Based on the Durability Influence Index and the DOE Analysis,' Trans. KSME(A), Submitted   과학기술학회마을   DOI
6 N. Choi, J. M. Park and B. C. Lee, 'Optimization on the Number of Spot Weld Point of Vehicle Components Using DOE with CAE Analysis,' Proc. KSME(A), 2005
7 S. H. Jeon, S. B. Lee, H. S. Kim and H. J. Yim, 'A Study on the Spot Welding Location Optimization for the Thin-walled Structures Considering Fatigue Life,' Fall Conference Proceedings, KSAE, pp.1453-1458, 2003
8 J. P. Leiva, L. Wang, S. Recek and B. C. Watson, 'Automobile Design Using the GENESIS Structural Optimization Program,' Nafems Seminar: Advances in Optimization Technologies for Product Design, 2001
9 M. S. Kim, C. W. Lee, S. H. Son, H. J. Yim and S. J. Heo, 'Shape Optimization for Improving Fatigue Life of a Lower Control Arm using the Experimental Design,' Transactions of KSAE, Vol.11, No.3, pp.161-166, 2003
10 Y. Zhang and D. Taylor, 'Optimization of Spot-welded Structures,' Finite Elements in Analysis and Design, Vol.37, pp.1013-1022, 2001   DOI   ScienceOn