关键词: 租赁设备, 动态环境, 修复非新, 弹性预防维护

Abstract: In the dynamic leasing mode of same equipment rented out to different lessees successively,to improve the flexibility and economy of dynamic preventive maintenance,the failure mechanism was analyzed by combining the normal degeneration derive from increase of enlistment age and random degeneration derive from individualized shocks.The double-factor imperfect maintenance model oriented to dynamic environment was established,and the flexible preventive maintenance strategy based on equipment condition and specific environment within phased lease term was proposed.The numerical analysis demonstrated that the strategy was more efficient to reduce the equipment failures and to control the operation and maintenance cost of lessor,which could support its maintenance decision process.

Key words: leased equipment, dynamic environment, imperfect maintenance, flexible preventive maintenance