Browse > Article
http://dx.doi.org/10.3795/KSME-A.2009.33.11.1341

Application of the Durability Reinforcement Technique on the Frame Structure  

Kwon, Sung-Hun (한양대학교 대학원 기계공학과)
Yoo, Hong-Hee (한양대학교 기계공학부)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.33, no.11, 2009 , pp. 1341-1346 More about this Journal
Abstract
In this paper, the technique to reinforce the durability performance of structure using the sensitivity information for the frame structure is applied. The fatigue life calculation for the frame structure is performed from the quasi-static and transient analysis and the characteristics of two methods are compared for the fatigue analysis. Then the reinforcement technique is applied. First, some design variables related to the locations of fatigue failure is selected. Then sensitivities of fatigue life at fracture points with respect to the variation of design variables are calculated and the vector composed of gaps between the target life and initial life cycles is calculated. If the number of fatigue fracture points is same as the number of design variables, the variations of the design variables are calculated from the linear algebraic equation. If not, the variations of the design variables are calculated from the optimization formulation with the constraints.
Keywords
Fatigue Life; Sensitivity; Stress Based Approach; Quasi-Static Analysis; Transient Analysis;
Citations & Related Records

Times Cited By SCOPUS : 0
연도 인용수 순위
  • Reference
1 Edda Eich-Soellner and Claus Fuhrer, 1998, 'Numerical Methods in Multibody Dynamics,' Teubner
2 Yoo, W. S. and Haug, E. J., 1986, 'Dynamics of Flexible Mechanical Systems Using Vibration and Static Correction Modes,' Journal of Mechanisms, Transmissions and Automation in Design, Vol. 8, pp.315-322
3 Yim, H. J., 1990, 'Computational Methods for Stress Analysis of Mechanical Components in Dynamic Systems,' Ph.D Dissertation, The University of Iowa
4 Kim, C. W., 2003, 'Frequency Response Analysis of Structure with Damping and Acoustic Fluid using Automated Multilevel Substructuring,' Ph.D Dissertation, The University of Texas at Austin
5 Chang, K. H., Yu, X. and Choi, K. K., 1997, 'Shape Design Sensitivity Analysis and Optimization for Structural Durability,' International Journal for Numerical Methods in Engineering, Vol.40, pp.1719-1743   DOI   ScienceOn
6 Venter, G., Haftka, R. T. and Chirehdast, M., 1997, 'Response Surface Approximations for Fatigue Life Prediction,' 38th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference and AIAA/ASM/AHS Adaptive Structures Forum., AIAA, pp.1383-1396
7 RecurDyn Program Manual, Ver.7.0, Function Bay Inc., 2008
8 ANSYS User's Guide, Ver.11.0, ANSYS Inc., 2007
9 Craig, R. R. and Bampton, M. C., 1968, 'Coupling of Substructures for Dynamic Analysis,' AIAA Journal, Vol.6, No.7, pp.1313-1319   DOI