This paper addresses the reliability aspects regarding deck machinery on ageing/aged fishing vessels. A reliability and degradation analysis for ageing fishing vessel deck machinery enables an evaluation of the reliability trend for the remaining useful life of the deck machinery. The research was limited to the maintenance of cranes, winches and capstans and failure data for fishing vessels whose age was 24 years and above. The reliability and degradation of deck machinery for ageing fishing vessels was analysed using Weibull and Gamma distributions. Deck machinery maintenance and failure data collected from fishing vessels at Walvis Bay were statistically fitted using ReliaSoft from which an analysis of deck machinery reliability was done. Reliability and degradation results of deck machinery indicate that the majority of the fishing vessels are using deck machinery beyond their design life. For the two mission end times 4700 h and 23300 h, winches and cranes have lower reliability results, less than 50% compared to capstans. This is attributed to the age of the fishing vessels and maintenance laxity towards deck machinery which poses risks to both operators and the vessel crew. The maintenance of ageing fishing vessel deck machinery should be given priority in order to extend their time available for the better fishing operations.

本文讨论了老化/老化渔船甲板机械的可靠性问题。老化渔船甲板机械的可靠性和退化分析能够评估甲板机械剩余使用寿命的可靠性趋势。该研究仅限于起重机、绞盘和绞盘的维护以及船龄为 24 年及以上的渔船的故障数据。使用 Weibull 和 Gamma 分布分析老化渔船甲板机械的可靠性和退化。从沃尔维斯湾渔船收集的甲板机械维护和故障数据使用 ReliaSoft 进行了统计拟合，从中进行了甲板机械可靠性分析。甲板机械的可靠性和退化结果表明，大多数渔船正在使用超过其设计寿命的甲板机械。对于两个任务结束时间 4700 小时和 23300 小时，绞盘和起重机的可靠性结果较低，与绞盘相比不到 50%。这归因于渔船的年龄和对甲板机械的维护松懈，这对运营商和船员都构成了风险。应优先维护老化的渔船甲板机械，以延长其可用于更好捕鱼作业的时间。这归因于渔船的年龄和对甲板机械的维护松懈，这对运营商和船员都构成了风险。应优先维护老化的渔船甲板机械，以延长其可用于更好捕鱼作业的时间。这归因于渔船的年龄和对甲板机械的维护松懈，这对运营商和船员都构成了风险。应优先维护老化的渔船甲板机械，以延长其可用于更好捕鱼作业的时间。