Abstract
The purpose of this paper is to compare with estimation of equivalent fatigue load in time domain and frequency domain and estimate the fatigue life of structure with multi-axial vibration loading. The fatigue analysis with two methods is implemented with various signals like random, sinusoidal signals. Also, an equivalent fatigue life estimated by rainflow cycle counting in time domain is compared with results estimated with probability density function of each signal in frequency domain. In case of frequency domain, equivalent fatigue life can be estimated through Dirlik’s method with probability density function. The work proposed in this paper compared the fatigue damage accumulated under uni-axial loading to that induced by multi-axial loading. The comparison was performed for a simple cantilever beam exposed to vibrations of several directions. For verification of estimation performance of fatigue life, results are compared to those of FEM analysis (ANSYS).
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References
J. A. Bannantine, J. J. Comer and J. L. Handrock, Funda mentals of metal fatigue analysis, Prentice Hall (1989) 198–200.
T. Dirlik, Application of computers to fatigue analysis, Ph.D. Thesis, University of Warwick, UK (1985).
N. W. Bishop, Analytical fatigue life assessment of fatigue life assessment of vibration induced fatigue damage, Proceedings of MSC world Users Conference (1995).
J. S. Bendat, Probability functions for random responses, NASA report on contract NASA-5-4590 (1964).
R. M. Frech, R. Handy and H. L. Cooper, A comparison of simultaneous and sequential single-axis durability testing, Experimental Techniques (2006) 32–37.
W. Whiteman and M. S. Berman, Fatigue failure results for multi-axial versus uni-axial stress screen vibrating testing, Shock and vibration (2002) 319–328.
M. H. A. Bonte, A. Boer and R. Liebregts, Determining the on Mises stress power spectral density for frequency domain fatigue analysis including out-of-phase stress components, Journal of sound and vibration, 302 (2007) 379–386.
M. Ayken and M. Celik, Vibration fatigue analysis and multi-axial effect in testing of aerospace structure, Mechanical System and Signal Processing, 23 (2009) 897–907.
P. Regan and L. Manuel, Comparing estimates of wind turbine fatigue loads using time-domain and spectral methods, Wind Engineering, 3 (2) (2007) 83–99.
J. S. Park, Fatigue life estimation of multi-axial loaded system in frequency domain, Master’s Thesis, Inje University (2010).
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This paper was presented at the FEOFS 2013, Jeju, Korea, June 9–13, 2013. Recommended by Guest Editor Jung-Il Song
Heung Seob Kim received the M.S. and Ph.D. degrees from Hanyang University, Seoul, Korea, in 1993 and 1997, respectively, all in Mechanical Engineering. He is currently a professor in the Department of mechanical & automotive engineering at Inje University. His research interests are in the area of dynamic stability problems like brake squeal, vehicle lateral stability. He is also interested in prediction of fatigue life due to mechanical vibration.
Moon Young Yoon received the M.S. degree in Mechanical Dynamics and Control from Inje University, Korea, in 2009. He is currently a Ph.D. candidate in noise and vibration control engineering at Inje University. His research interests are in the area of noise and vibration problems. His works focus on disc brake squeal, vehicle braking stability and prediction of fracture and fatigue life due to mechanical vibration.
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Yoon, M., Kim, K., Oh, J.E. et al. The prediction of dynamic fatigue life of multi-axial loaded system. J Mech Sci Technol 29, 79–83 (2015). https://doi.org/10.1007/s12206-014-1212-1
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DOI: https://doi.org/10.1007/s12206-014-1212-1