基于预防性成组维修的人字门船闸大修周期  

Determination of cycle of mitering lock overhaul based on preventive group maintenance strategy

作　　者：陈一梅[1] 李少斌[1] 金彬彬[1] 

机构地区：[1]东南大学交通学院,南京210096

出　　处：《东南大学学报（自然科学版）》2014年第2期436-440,共5页Journal of Southeast University：Natural Science Edition

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)

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．Based on the system maintenance strategy theory,the group maintenance components of the mitering lock system are analyzed.A group maintenance system is put forward,which contains four control units such as bottom pivot,top pivot,valves and supporting,affecting mitering lock overhaul decision.From the perspective of reliability and economical of the multi-unit maintenance and taking reliability as constraint,the optimal model for the cycle of mitering lock is established to minimize the system annual average cost.The maintenance data of 16 mitering locks on the Grand Canal at the northern of Jiangsu are investigated in this study to determine the group maintenance cost of the model,thus establishing the lifetime distribution of the control unit with the application of the reliability theory.Further more,the maintenance intervals of bottom pivot,top pivot,valves and supporting are determined to be 14,6,3 and 14 years,respectively.The results show that the opti-mal overhaul cycle and the maintenance intervals of maintenance group which contains bottom pivot and supporting are close,and with existing maintenance technology,the optimum overhaul cycle of mitering lock at the northern of Jiangsu is about 14 years.Finally,according to the sensitivity analy-sis,the sensitivity coefficients are between 0.02 and 0.12,which shows that the model is stable and it can be reference for engineering practice.

关 键 词：人字门船闸 控制部件 成组维修 维修间隔期 大修周期 

分 类 号：U641.8[交通运输工程—船舶及航道工程]