System-level maintenance scheduling method for dynamic reconfigurable manufacturing system
A manufacturing system and dynamic reconfiguration technology, applied in the manufacturing industry, can solve problems such as maintenance combination dimension disaster, achieve the effect of solving the complexity of reconstruction and ensuring rapid response capability
Active Publication Date: 2018-04-20
SHANGHAI JIAO TONG UNIV
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[0005] Aiming at the complexity of model reconstruction caused by system reconfiguration that is difficult to deal with by existing static structure maintenance strategies and the maintenance combination dimension disaster caused by series-parallel complex structures, the present invention proposes a system layer maintenance scheduling method for dynamic reconfiguration manufacturing systems , using the maintenance opportunity caused by equipment downtime in the series and parallel subsystems, using the configuration-driven dynamic reconfiguration maintenance time window method, dynamically and cyclically implementing the system-level maintenance job merging / separation optimization scheduling, and realizing the generalized manufacturing system maintenance modeling decision economy, efficiency and feasibility
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[0020] like figure 1 As shown, the system layer maintenance scheduling strategy for dynamic reconfiguration manufacturing system proposed in this embodiment includes the following steps:
[0021] Step 1: According to the optimal scheduling requirements of the system layer, obtain the optimal maintenance cycle of each device dynamically provided by the device layer in real time, and evaluate the interval value T of RMTW Wh . Predictive maintenance optimization scheduling starts from the first maintenance cycle. In the first predictive maintenance period, the predictive maintenance time node t of equipment j jk Equal to the optimal predictive maintenance cycle of equipment j in the i-th maintenance cycle
[0022] Step 2: MS at various manufacturing stages h , (h = 1, 2, 3, ...) during the separation of RMTW maintenance tasks for parallel subsystems. For a parallel subsystem composed of N production equipment, the simultaneous maintenance of all equipment in the subsystem ...
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The invention relates to a system-level maintenance scheduling method for a dynamic reconfigurable manufacturing system, which dynamically implementing system-level maintenance operation combination / separation optimization scheduling in a circulating manner by adopting a configuration-driven dynamic reconfigurable maintenance time window method through utilizing a maintenance opportunity caused byshutdown of equipment in series and parallel subsystems, and realizes the economy, efficiency and feasibility in decision making of generalized manufacturing system maintenance modeling. The maintenance strategy generated according to the invention emphatically analyzes quick responses to market changes, mobile equipment replacement and addition and production characteristics of the dynamic reconfiguration system structure in a reconfigurable manufacturing mode. Systematic problems such as the decision planning timeliness, the system reconfiguration dynamic property and maintenance schedulingagility are comprehensively considered, and quick decision response and significant cost reduction of health management for reconfigurable manufacturing are realized.
Description
technical field [0001] The invention relates to a technology in the field of manufacturing industry, in particular to a system layer maintenance scheduling method for dynamic reconfiguration of manufacturing systems. Background technique [0002] Today's market demand is increasingly dynamic and changeable, and advanced manufacturing models are urgently needed to adapt to changes in product demand and quickly adjust the manufacturing process, production functions, and production capacity. As a typical advanced manufacturing system, a reconfigurable manufacturing system (Reconfigurable Manufacturing System, RMS) refers to the ability to adjust the function and production capacity of the manufacturing system in time by quickly reorganizing or updating the structure of the manufacturing system and its components, so as to A manufacturing system that responds quickly to market changes and other needs. Research on maintenance decision-making for such production systems proposes ...
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IPC IPC(8): G06Q10/06G06Q10/00G06Q50/04
CPCG06Q10/06313G06Q10/20G06Q50/04Y02P90/30Y02P90/80
Inventor 夏唐斌董一凡冯翰信司国锦潘尔顺奚立峰
Owner SHANGHAI JIAO TONG UNIV