Bayesian Updating in the Reliability Assessment of Maintained Floating Structures

Author:

Garbatov Y.1,Soares C. Guedes1

Affiliation:

1. Unit of Marine Technology and Engineering, Instituto Superior Te´cnico, 1096 Lisboa, Portugal

Abstract

The present paper adopts a Bayesian approach to update some of the parameters of the probability distributions governing the reliability assessment of maintained floating structures. It is based on a time dependent fatigue reliability formulation presented earlier but the description of the time to crack initiation, crack growth law and probability of crack detection are updated using the information from the inspections. Its performance is demonstrated with a simulated example.

Publisher

ASME International

Subject

Mechanical Engineering,Ocean Engineering

Reference26 articles.

1. Lindley, D. V., 1976, Introduction to Probability and Statistics from a Bayesian Viewpoint, Cambridge University Press, Cambridge.

2. Raiffa, H., and Schalifer, R., 1961, Applied Statistical Decision Theory, Harward University Press.

3. Box, G. E. P., and Tia, G. C., 1973, Bayesian Inference in Statistical Analysis, Addison-Wesley Publishing Co.

4. Guedes Soares, C., 1988, “Bayesian Prediction of Design Wave Height,” Reliability and Optimization of Structural System, P. Thoft-Christensen (ed.), Springer-Verlag, pp. 311–323.

5. Madsen, H. O., 1987, “Model Updating in Reliability Theory,” Proc. of ICASP-5, Vancouver, 2, pp. 564–577.

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