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Door Effort Analysis for Door Checker of Integrated Type with Torsion Bar Spring  

Yoon, Sang-Min (남양공업(주) 선행연구팀)
Kang, Sung-Jong (대구가톨릭대학교 기계자동차공학부)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.11, no.3, 2012 , pp. 86-91 More about this Journal
Abstract
Door effort was calculated for a new door checker with torsion bar spring and integrated checker case by FE analysis. A hybrid checker arm which has peaks and valleys only on the upper surface was adopted to reduce noise in operation and make operation with more distinctive steps. The checker arm was modeled using shell elements to estimate both the longitudinal and the lateral resistance force by checker arm. By combining the checker arm resistance force obtained from analysis and the door self-closing force by the theoretical calculation, door effort was predicted to show the good correlation with test results. In addition the unrolling effect of roller model was investigated and a new roller type for more smooth rolling was studied.
Keywords
Door Effort; Torsion Bar Spring; Integrated Type Case; Checker System Model; Roller;
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  • Reference
1 Japan Society of Automotive Engineers, "Handbook of Automotive Technology", Vol. 2, JSAE, pp. 289-290, 1991.
2 Jae-Ung Cho, Moon-Sik Han, "Structural Analysis on Door Hinge of Car", Journal of KSMPE, Vol. 9, No. 2, pp. 33-39, 2010.
3 O. S. Ko, W. N. Choi, "Door Checker Arm Surface Profile Design for Optimum Door Effort", Hyundai Motor Review, Vol. 2, No.1, pp. 114-125, 1994.
4 Kyung-Taek Kwak, Sun-Min Kim,, Kuk-Hyun Cho, "A Theoretical Study on the Profile of door Checker Arm and Door Operating Force for Spring Roller and Hybrid Type", Proceedings of KSAE 2009 Annual Conference, pp. 2247-2252, 2009.
5 LS-DYNA User's Manual, "Nonlinear Dynamic Analysis of Structure", Version 971, LSTC, 2006.
6 Sang-Min Yoon, "A Study on Design Technique for One Body Type Door Checker with Torsion Bar Spring", M.Sc. Thesis, Catholic University of Daegu, 2006.
7 Chang-Won Kim, Sung-Jong Kang, "Analysis of Door Effort using 2D Model", Transaction of KSAE, Vol. 11, No. 3, pp. 131-137, 2003.