Production scheduling and machine maintenance optimization method based on joint optimization model

Abstract

The invention discloses a production scheduling and machine maintenance method based on a production and maintenance joint optimization model, and the method comprises the steps: considering the mutual relation between production scheduling and machine maintenance and the random degradation of a machine, building a production and maintenance joint optimization model, carrying out the production engineering scheduling, and generating the machine maintenance optimization; comprising the steps of constructing a degradation model of a production machine; establishing a production and maintenance joint optimization model considering the correlation between production and maintenance for the production process; according to the method, an adaptive machine maintenance strategy AJMW is designed, and a joint optimization method based on a meta-heuristic algorithm and the adaptive maintenance strategy AJMW is designed on the basis and is used for solving a production and maintenance joint optimization model, so that engineering scheduling and maintenance optimization of a hybrid production system are realized. By adopting the technical scheme, the machine can be adaptively maintained according to the real-time state, the maintenance cost can be reduced, and the production efficiency can be improved.

Description

technical field [0001] The invention provides a production and maintenance joint optimization technology, in particular to a production scheduling and machine maintenance method based on a production and maintenance joint optimization model, and belongs to the technical field of industrial engineering scheduling optimization. Background technique [0002] Maintaining system stability and increasing productivity are two inseparable production system goals. Production efficiency is directly related to production due dates and is generally affected by production schedules and machine status. One goal of production scheduling is to minimize the maximum makepan by determining the order in which work orders are processed and the choice of machines that process the work orders. In reality, factors such as frequency of use or environmental corrosion can cause machine degradation, and degraded machine conditions can in turn affect processing speed. Maintenance, as one of the determ...

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Problems solved by technology

However, to the best of our knowledge, existing studies have paid less attention to the interrelationship between production scheduling and machine maintenance, specifically, the impact of simultaneous consideration of machine degradation status, work order processing time, and work order allocation system impact

Furthermore, machines often fail randomly on the shop floor, and in this stochastic and dynamic manufacturing environment, existing adaptive maintenance strategies are necessary but lacking

[0004] At present, the joint optimization of production scheduling and machine maintenance for the common production system in production: series-parallel hybrid production system still faces the following challenges: First, there is a mutual relationship between production scheduling and machine maintenance, making the production process in a dynamic During the change, the degradation of the machine is affected by many factors at the same time, and has a random and uncertain nature

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