Browse > Article
http://dx.doi.org/10.3744/SNAK.2012.49.4.359

Study on Applicability of Frequency Domain-Based Fatigue Analysis for Wide Band Gaussian Process II : Wide Band Prediction Models  

Choung, Joon-Mo (Dep't of Naval Architecture and Ocean Engineering, Inha University)
Kim, Kyung-Su (Dep't of Naval Architecture and Ocean Engineering, Inha University)
Nam, Ji-Myung (Dep't of Naval Architecture and Ocean Engineering, Inha University)
Koo, Jeong-Bon (Marine Research Institute, Samsung Heavy Industries Co., Ltd.)
Kim, Min-Soo (Lloyd's Register Asia)
Shim, Yong-Lae (American Bureau of Shipping)
Urm, Hang-Sub (Det Norske Veritas)
Publication Information
Journal of the Society of Naval Architects of Korea / v.49, no.4, 2012 , pp. 359-366 More about this Journal
Abstract
This is the final one of the two companion papers dealing with accuracy of accumulated fatigue damage estimation under wide band process. It is stated that four kinds of wide band models exist: typed of equivalent stress, combined PDF, correction factor, and damage combination. For the idealized ESDs from full scale measurement data on an 8100TEU container vessel, fatigue damages are compared for a narrow band prediction model based on Rayleigh PDF and five wide band fatigue prediction models of Dirlik, Wirsching-Light, Jiao-Moan, Benasciutti and DNV. DNV model consistently overestimates fatigue damages regardless of variation of ESDs. Predictions by Jiao-Moan model, which is understood as standard method for design of offshore platforms, are also in conservative side. Best accuracy is found from the results by Dirlik and Benasciutti models, but Benasciutti model is preferred since it can easily combined with narrow band fatigue damage based on Rayleigh PDF.
Keywords
Wide band process; Narrow band process; Dirlik model; Wirsching-Light model; Jiao-Moan model; Benasciutti model; DNV model; Rainflow cycle counting(RFC); Wave process; Vibration process; Combined process;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 DNV, 2010b. Offshore Standard DNV-OS-E301 Position Mooring, Det Norske Veritas(DNV).
2 Guede, Z. et al., 2010. Fast Spectral Rainflow Fatigue Damage Assessment Under Wideband Multipeak Loading. 11th International Symposium on Practical Design of Ships and Other Floating Structures Rio de Janeiro, RJ, Brazil.
3 Jiao, G. & Moan, T., 1990. Probabilistic analysis of fatigue due to Gaussian load processes. Probabilistic Engineering Mechanics, 5(2), pp.76-83.   DOI   ScienceOn
4 Lim, Y.C. Kim, K.S. & Choung, J., 2010. Fatigue Damage Combination for Spread Mooring System under Stationary Random Process with Bimodal Spectrum Characteristics. Journal of the Society of Naval Architects of Korea, 47(6), pp.813-820.   과학기술학회마을   DOI   ScienceOn
5 Madsen, H.O. Krenk, S. & Lind, N.C., 1986. Methods of structural safety. Prentice-Hall, Englewood Cliffs, New Jersey.
6 Park, J.B., 2011. The Development of a Fatigue Damage Model for the Wide Band Random Loading. Ph.D. Inha University.
7 Park, J.B. et al., 2011. A Study on Frequency Domain Fatigue Damage Prediction Models for Wide-Banded Bimodal Stress Range Spectra. Journal of the Society of Naval Architects of Korea, 48(4), pp.299-307.   과학기술학회마을   DOI   ScienceOn
8 Rychlik, I., 1993. On the "narrow-band" approximation for expected fatigue damage. Probabilistic Engineering Mechanics, 8(1), pp.1-4.   DOI   ScienceOn
9 Wirsching, P.H. & Light, M.C., 1980. Fatigue under wide band random stresses. Journal of the Structural Division, ASCE(Americal Socoety of Civil Engineers), 106(7), pp.1593-1607.
10 Zhao, W. & Baker, M.J., 1992. On the probability density function of rainflow stress range for stationary Gaussian processes. International Journal of Fatigue, 14(2), pp.121-135.   DOI   ScienceOn
11 Chaudhury, G.K. & Dover, W.D., 1985. Fatigue Analysis of Offshore Platforms Subject to Sea Wave Loading. International Journal of Fatigue, 7(1), pp.13-19.   DOI   ScienceOn
12 API, 2008. API Recommended practice 2SK Design and Analysis of Stationkeeping Systems for Floating Structures, American Petroleum Institute.
13 Benasciutti, D. 2004. Fatigue Analysis of Random Loadings. Ph.D. University of Ferrara.
14 Benasciutti, D. & Tovo, R., 2006. Comparison of spectral methods for fatigue analysis of broad-band Gaussian random processes. Probabilistic Engineering Mechanics, 21(4), pp.287-299.   DOI   ScienceOn
15 Dirlik, T., 1985. Application of computers in fatigue. Ph.D. University of Warwick.
16 DNV, 2010a. Recommended practice DNV-RP-C206 Fatigue Methodology of Offshore Ships, Det Norske Veritas(DNV).