Ship multi-core tube feeding optimization method

An optimization method and core tube technology, applied in the optimization field of ship multi-core tube blanking, can solve the problems of waste of multi-core tubes and low utilization rate of raw materials, etc.

Active Publication Date: 2014-04-09
DALIAN SHIPBUILDING IND
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Problems solved by technology

[0003] The present invention mainly aims to solve the production technical problems of serious waste of multi-core tubes and low utilization rate of raw materials, and provides an optimization scheme for multi-core tube blanking by improvi

Method used

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  • Ship multi-core tube feeding optimization method
  • Ship multi-core tube feeding optimization method
  • Ship multi-core tube feeding optimization method

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Embodiment Construction

[0077] The technical scheme of the present invention is: perform mathematical abstraction on the problem of multi-core tube blanking, convert the actual production problem into a mathematical problem, establish a mathematical model, and use the first adaptive descending algorithm and genetic algorithm to solve the mathematical model, by realizing the above Two algorithms calculate the total demand of raw materials, and give the cutting mode corresponding to each raw material in detail.

[0078] The present invention is divided into the following steps:

[0079] The first step is to establish a mathematical model;

[0080] For the first adaptive descending algorithm, the mathematical model is:

[0081]

[0082] Among them, L is the length of the raw material, n is the quantity of the required specification (n>0)l i and d i Length and quantity (1≤l i ≤n, 0≤d i ≤L), m is the root teaching that requires raw materials a ij is the cutting quantity of each raw material (1≤...

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Abstract

The invention relates to a ship multi-core tube feeding optimization method including abstracting the multi-core feeding problem mathematically, converting the real production problem into the mathematical problem, building a mathematical model, and solving for the mathematical model by means of a first-fit adaptive decreasing algorithm and a genetic algorithm so as to calculate the total quantity demanded of raw materials and provide a detailed cutting mode corresponding to each raw material according to the two algorithms. By the ship multi-core tube feeding optimization method, on the premise of completion of shipbuilding production tasks, usage of the multi-core tubes is minimized, the utilization rate is improved to 90% above, the residual materials are arranged reasonably, work efficiency is improved, and cost is reduced while efficiency is improved.

Description

technical field [0001] The invention relates to an optimization method for cutting multi-core tubes for ships, that is, a method for arranging the cutting of multi-core tubes by using scientific mathematical calculations. Background technique [0002] The marine multi-core tube is used to control the remote control butterfly valve on the ship, and the length of each section of the multi-core tube is different. In the traditional multi-core tube blanking method, the total demand for multi-core tubes is roughly estimated manually, and then the overall purchase quantity is calculated according to the single coil length specification given by the multi-core tube manufacturer. When managing pipes, there is often a lack of overall concept and unified planning, resulting in a large amount of surplus material from pipe cutting, resulting in serious waste, and replenishing orders will cause problems in inventory management, production nodes, and shipbuilding costs. Contents of the ...

Claims

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Application Information

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IPC IPC(8): G06F17/50
Inventor 陈映陈波崔峻马延德季宝军杨光颜丽琳艾进王袖钧高霞鲍雨晖
Owner DALIAN SHIPBUILDING IND
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