Analysis Of the Joint Structure of the Vehicle Body by Condensed Joint Matrix Method

  • Suh, Myung-Won (Professor, School of Mechanical Engineering, Sungkyunkwan University) ;
  • Yang, Won-Ho (Professor, School of Mechanical Engineering, Sungkyunkwan University) ;
  • Jonghwan Suhr (Researcher, Safety and Structural Integrity Research Center, Sungkyunkwan University)
  • Published : 2001.12.01

Abstract

It is often necessary that the joints characteristics should be determined in the early stage of the vehicle body design. The researches on identification of joints in a vehicle body have been performed until the recent year. In this study, the joint characteristics of vehicle structure were expressed as the condensed matrix forms from the full joint stiffness matrix. The condensed joint stiffness matrix was applied to typical T-type and Edge-type joints, and the usefulness was confirmed. In addition, it was applied to the real center pillar model and the full vehicle body in order to validate the practical application.

Keywords

References

  1. Chang, D. C, (1974), 'Effect of Flexible Connections on Body Structural Response,' SAE Transactions, Vol. 83, pp. 233-244
  2. Guyan., R. J., 1965, 'Reduction of Stiffness and Mass Matrices,' AIAA Journal Vol. 3, No.2
  3. Katakami Tetsufumi, Sugamori Isao, Takahashi Kunihiro, Shimomaki Kazunori, Komatsu Keiji, Tachikawa Katsujiro, Ninomiya Osamu, Maeno Yoshinori, Egashira Yuji and Ono Hyroyuki, 1990, 'Joint Stiffness of Body Structures - Part 2 Joint stiffness of L-, T-, Ytype Joints -,' JSAE, No. 43, pp. 143-147
  4. Kim Yoon Young, Yim Hong Jae, Kang Jeong Hoon and Kim Jin Hong 1995, 'Reconsideration of the Joint Modeling Technique: In a Box-Beam T-Joint,' SAE Paper No. 951108, pp. 275-279
  5. Maurice Petyt, 1980, 'Introduction to Finite Element Vibration Analysis,' Cambridge pp. 364-369
  6. Moon, Y. M., Jee, T- H- and Park, Y. P., 1995, 'Joint Stiffness of Automotive Structural Model,' the '95 KSME Spring Conference, Vol. 1 pp. 701-706
  7. Shimomaki Kazunori, Sugamori Isao, Takahashi Kunihiro, Komatsu Keiji, Tacbikawa Katsujiro, Ninomiya Osamu, Katakami Tetsufumi, Maeno Y oshinori, Egashira Yuji and Qno Hiroyuki, 1990, 'Joint stiffness of Body Structures - Part I Its Evaluation Method -,' JSAE, No. 43, pp. 138-142
  8. Wright, G. C. and Miles, G. A., 1971, 'An Economical Method for Determining the Smallest Eigenvalues of Large Linear Systems' Int. J. Num. Meth. Eng. 3, pp. 25-34 https://doi.org/10.1002/nme.1620030106