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Job shop operation planning and rescheduling method for complex aeronautical equipment structures

A technology for job planning and structural parts, applied in computing, instrumentation, data processing applications, etc., can solve problems such as rapid response to sudden disturbances in discrete workshops that do not consider planning-scheduling connection

Active Publication Date: 2019-02-19
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

[0005] Aiming at the deficiencies of the above-mentioned prior art, the object of the present invention is to provide a workshop operation planning and rescheduling method for aviation complex equipment structural parts, so as to solve the problems in the prior art that do not consider the planning-scheduling connection, multi-variety and small-batch discrete workshop outbursts. For the problem of quick response to disturbances, the present invention can formulate a better production operation plan in line with the actual site when there are complete input data; in the case of disturbances, it can be rescheduled according to the scale and type of disturbances

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  • Job shop operation planning and rescheduling method for complex aeronautical equipment structures

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Embodiment Construction

[0070] In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the embodiments and accompanying drawings, and the contents mentioned in the embodiments are not intended to limit the present invention.

[0071] This implementation mode is to apply the above method to an example of production scheduling in a certain complex equipment structural parts workshop, and to verify the effectiveness of the model and algorithm in actual production through the simulation of production scheduling with sufficient resources and production scheduling with disturbances. Practicality in scheduling. The method of the present invention has been realized with MATLAB R2014a.

[0072] The implementation process is as follows figure 1 As mentioned above, the planning part can be mathematically described as having N tasks to be processed, and the batch size of each task is p. The jth process of each order task i m...

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Abstract

A job shop operation planning and rescheduling method for complex aeronautical equipment structures is disclosed. an operational workshop planning model for aerospace complex equipment structural components is constructured with the equipment equalization rate and on-time delivery rate as objective functions. The model solving method is designed based on multi-layer coding genetic algorithm. Considering the application scenarios of for both the capacity surplus and the insufficient capacity, the plan-making and the rescheduling algorithm flow is designed. The rescheduling algorithm can identify the task being produced and the task of not starting production, and judge the allowable start time of the machine, the allowable start time of the next process of the workpiece, etc. according to the completion time of the process being processed, and reshcheduing is performed while the remaining workpieces meet the target the constraint. The method of the invention is suitable for most discrete enterprises with multi-variety and small batch production, and has good adaptability and versatility.

Description

technical field [0001] The invention belongs to the technical field of workshop planning and scheduling, and in particular relates to a workshop operation planning and rescheduling method for aviation complex equipment structural parts based on legacy algorithms. Background technique [0002] In recent years, the research and development of large and complex equipment such as aviation, aerospace, and ships in my country has developed rapidly. Especially in the aviation industry, multiple models are developed and produced in parallel. How to achieve on-time delivery is a management pain point faced by aviation complex equipment manufacturers. It is particularly urgent that planning and scheduling methods help enterprises improve production management. The reality is that the production management level of the high-end equipment manufacturing industry is not high. The production planning mainly relies on the experience of the planners and the use of extremely inefficient Excel ...

Claims

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Application Information

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IPC IPC(8): G06Q10/06
CPCG06Q10/06312
Inventor 谢乃明吴乔郑绍祥
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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