Modelling prevention and reduction methods of ship propeller cavitation under uncertainty

Abstract

The failure-based implications of a cavitating propulsion system on the operations of the ship are analysed; in line with cost distribution plan and impact of adopted preventive and corrective measures under uncertainty. Therefore, a methodology comprised of discrete fuzzy logic, evidential reasoning and utility theory is developed, for the purpose of addressing cavitation prevention and reduction on ships in a cost-effective manner. The framework is capable of reducing the frequency of failure occurrence of ship propeller due to cavitation and/or mitigates their possible consequences through improvement of the design standards and operational practices.

Keywords:

• propeller
• cavitation
• ship
• failures
• operation
• uncertainty
• cost

Acknowledgements

The author thanks the reviewers for their time and effort in improving the quality of the paper.

Disclosure statement

No potential conflict of interest was reported by the authors.