基于预防性成组维修的人字门船闸大修周期

发布时间：2018-08-01 12:07

【摘要】：基于系统维修策略理论,对人字门船闸系统成组维修部件构成进行分析,确定了以影响人字门船闸大修决策的底枢、顶枢、阀门和支承件4个控制部件为成组维修系统.从多部件维修的可靠性和经济性出发,以可靠度要求为约束,以系统年平均总费用最小为目标,建立了人字门船闸系统大修周期优化模型.通过调查分析苏北航务管理处所辖16个人字门船闸的维修记录,确定了大修周期优化模型中的成组维修费用,应用可靠性理论确定了控制部件底枢、顶枢、阀门和支承件的维修间隔期分别为14,6,3,14年.研究结果表明,在目前船闸维护技术水平下,苏北处人字门船闸最优大修周期为14年左右,与底枢和支承件的维修间隔期相近.敏感性分析所得敏感度系数在0.02~0.12之间,表明所建立的模型具有很好的稳定性,可供工程实践参考.
[Abstract]:Based on the theory of system maintenance strategy, the group maintenance components of herringbone gate shiplock system are analyzed, and the four control components, bottom pivot, top pivot, valve and supporting parts, which affect the decision of overhaul of herringbone gate lock, are determined as group maintenance system. Based on the reliability and economy of multicomponent maintenance, taking the requirement of reliability as the constraint and the minimum annual average total cost of the system as the goal, the optimization model of overhaul period of herringbone gate lock system is established. Based on the investigation and analysis of the maintenance records of 16 herringbone gate locks under the jurisdiction of North Jiangsu Aviation Management Office, the group maintenance costs in the optimization model of overhaul cycle are determined, and the bottom and top armature of the control parts are determined by applying the reliability theory. The service intervals for valves and supports are 14, 6 and 14 years, respectively. The results show that the optimal overhaul period of herringbone gate shiplock in northern Jiangsu Province is about 14 years, which is close to the maintenance interval between bottom armature and supporting parts. The sensitivity coefficient obtained from the sensitivity analysis is between 0.02 and 0.12, which indicates that the established model has good stability and can be used as a reference for engineering practice.
【作者单位】：东南大学交通学院;
【基金】：国家自然科学基金资助项目(51009028) 江苏省交通科技项目资助项目(12T06)
【分类号】：U641.8

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