| 自动化车床管理 |
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| 引用本文： | 石敏,林超友,方斌. 自动化车床管理[J]. 数学的实践与认识, 2000, 30(1) |
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| 作者姓名： | 石敏 林超友 方斌 |
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| 作者单位： | 海军工程大学,武汉,430033 |
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| 摘 要： | 本文对自动化车床管理问题进行了讨论 ,将检查间隔和刀具更换策略的确定归结为单个零件期望损失最小的一个优化问题 ,并提供了有效算法 .对问题一 ,得到检查间隔τ0 =1 8,定期换刀间隔τ1=34 2 ,相应的单个零件期望损失费用 C=4 .75元的最优解 ,并用蒙特卡罗法对结果进行了模拟检验 .对问题二 ,得到检查间隔τ0 =1 1 ,定期换刀间隔τ1=2 4 2 ,单个零件期望损失费用 C=7.2 2元 .对问题三 ,我们采用新的改进方案使单个零件期望损失费用降为 5.34元 .本文还对变检查间隔、参数灵敏性、误差分析等进行了讨论 .
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The Management of An Automatic Lathe |
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| SHI Ming,LIN Chao-you,FANG Bin. The Management of An Automatic Lathe[J]. Mathematics in Practice and Theory, 2000, 30(1) |
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| Authors: | SHI Ming LIN Chao-you FANG Bin |
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| Abstract: | Optimal maintenance policy problem in a system is discussed and analysed in this paper. Due to the random variable concerned,one objective mathematical model of expectation value is developed.By using enumerative search method,we obtain optimal policy.The process is checked once every producing1 8parts.When the process is checked2 0 times,the knife has to be changed. According to this policy,the average minimal cost for producing a part is 4.62 . Finally,we pointoutsome factors notto be considered in the model,and analyse the influ- ence of these factors. Moveover,some modification is proposed. |
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