Risk Based Inspection Planning for Ship Structures Subjected to Corrosion Deterioration

  • Li Dianqing
  • Zhang Shengkun
  • Tang Wenyong


A decision tree is established for selecting the optimal inspection and repair strategy of ship structures. By comparing the expected costs associated with different inspection and repair strategies, the smallest expected cost associated with the inspection and repair strategy can be identified as the optimal one. Based on them, a method is proposed to perform the sensitivities of both optimal inspection and repair strategy. Furthermore, some formulae are derived to analyze the sensitivities. A numerical example is investigated to illustrate the process of selecting the optimal inspection and repair strategy. The results show that different values of various costs have significant effects on the reliability and stability of decision results


Reliability Index Inspection Method Repair Strategy Repair Method Ship Structure 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    Faber M H, Straub D, Goyet J. Unified approach to risk based inspection planning for offshore production facilities. J Offshore Mech Arctic Engng, 2003, 125(2): 126–131.CrossRefGoogle Scholar
  2. 2.
    Faber M H, Sträub D, S Sørensen J D, Tychsen J. Field implementation of RBI jacket structures. Proceedings of the 22th International Conference on Offshore Mechanics and Arctic Engineering, (OMAE’03), ASME, Cancun, Mexico,2003.Google Scholar
  3. 3.
    Ma K T, Orisamolu I R, Bea R G, Huang R T. Towards optimal inspection strategies for fatigue and corrosion damage. Transactions-SNAME, 1997, 105(1):99–125.Google Scholar
  4. 4.
    Ma K T. Tanker inspection and a risk-based inspection approach. Proceeding of the Eighth International Offshore and Polar Engineering Conference (ISOPE’98), Canada, 1998, 4:504–512.Google Scholar
  5. 5.
    Ma K T, Orisamolu I R, Bea R G Optinal strategies inspection of ships dor fatigue and corrosion damage. SSC-407, Ship Structures Committee, Washington D C, 1999.Google Scholar
  6. 6.
    Landet E, Lotsberg I and Sigursson G. Risk based inspection of an FPSO. Proceedings of the Annual Offshore Technology Conference (OTC), OTC12146,Houston Texas, 2000:739-748.Google Scholar
  7. 7.
    De Souza G F M, Ayyub B M. Risk based inspection planning for ship hull structures. Association of Scientists and Engineers’2000 Technical Symposium, USA, 2000.Google Scholar
  8. 8.
    Ayyub B M, Akpan U O, De Souza G F M, Koko T S and Luo X. Risk-based life cycle management of ship structures. SR-1407, Ship Structures Committee, Washington D C, 2000.Google Scholar
  9. 9.
    Jiao G Y. Reliability analysis of crack growth under random loading considering model updating. PhD thesis, Norwegian Institute of Technology, Trondheim, Norway, 1989.Google Scholar
  10. 10.
    Paik J K, Kim S K, Lee S K. Probabilistic corrosion rate estimation model for longitudinal strength members of bulk carriers. Ocean Eng, 1998, 25(10): 837–860.CrossRefGoogle Scholar
  11. 11.
    Ayyub B M, Akpan U O, Rushton P A, et al. Risk-informed inspection of marine vessels. SSC-421, Ship Structures Committee, Washington D C, 2002.Google Scholar

Copyright information

© Springer-Verlag London 2004

Authors and Affiliations

  • Li Dianqing
    • 1
  • Zhang Shengkun
    • 1
  • Tang Wenyong
    • 1
  1. 1.Shanghai Jiao Tong UniversityShanghaiChina

Personalised recommendations