System-level Maintenance Scheduling Method for Dynamically Reconfigurable Manufacturing Systems
A manufacturing system and dynamic reconstruction technology, applied in the manufacturing field, can solve problems such as maintenance combined dimension disaster, achieve the effect of solving the complexity of reconstruction and ensuring rapid response capability
Active Publication Date: 2021-07-16
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] Such as 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 subsyst...
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A system-level maintenance scheduling method for dynamic reconfigurable manufacturing systems, using maintenance opportunities caused by equipment downtime in serial and parallel subsystems, and adopting a configuration-driven dynamic reconfiguration maintenance time window method to implement system-level maintenance operations dynamically and cyclically Merge / separate optimal scheduling to realize economy, efficiency and feasibility of generalized manufacturing system maintenance modeling decision-making. The maintenance strategy generated by the invention focuses on analyzing the production characteristics of rapid response to market changes, mobile replacement and addition of equipment, and dynamic reconfiguration of the system structure in the reconfigurable manufacturing mode. Systematic issues such as real-time decision-making planning, system reconfiguration dynamics, and maintenance scheduling agility are fully considered to achieve rapid decision-making response and significant cost reduction of reconfigurable manufacturing health management.
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