| 热时效下的机床床身质量评价 |
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| 引用本文： | 刘英,王毅,冉琰.热时效下的机床床身质量评价[J].重庆大学学报(自然科学版),2018,41(8):1-10. |
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| 作者姓名： | 刘英 王毅 冉琰 |
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| 作者单位： | 重庆大学 机械工程学院,重庆,400044 |
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| 基金项目： | 国家科技重大专项资助项目(2016ZX04004005-02 |
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| 摘 要： | 机床床身的质量对整机可靠性影响极大,对其进行合理的评价可以指导工艺规程的改进。针对热时效过程下机床床身的质量进行定量评价,提出热时效熵的概念。从5M1E6个方面分析导致床身质量损失的原因,采用模糊综合评价等方法获得对6个方面的初始评价值,然后结合熵权法和基于Vague集的模糊评判得到各影响因素的综合权重,最后基于6个因素的综合权重与初始评价值得到床身质量综合评价值。
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| 关 键 词： | 质量 热时效 权重 模糊综合评价 |
| 收稿时间： | 2018/3/3 0:00:00 |
Quality evaluation of lathe bed under thermal aging |
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| LIU Ying,WANG Yi and RAN Yan.Quality evaluation of lathe bed under thermal aging[J].Journal of Chongqing University(Natural Science Edition),2018,41(8):1-10. |
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| Authors: | LIU Ying WANG Yi and RAN Yan |
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| Institution: | College of Mechanical Engineering, Chongqing University, Chongqing 400044, P. R. China,College of Mechanical Engineering, Chongqing University, Chongqing 400044, P. R. China and College of Mechanical Engineering, Chongqing University, Chongqing 400044, P. R. China |
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| Abstract: | The quality of lathe bed has a great influence on the reliability of the complete machine, and reasonable evaluation can guide the improvement of process regulation. On the basis of quantitative evaluation of the bed''s quality in thermal aging process, the concept of thermal aging entropy is proposed. The cause of lathe bed quality problem are analyzed in six aspects of 5M1E. By fuzzy comprehensive evaluation, the preliminary evaluation of the six aspects is obtained, and then the entropy assessment is combined with the Vague fuzzy evaluation to attain the comprehensive weights based on the six factors. Finally the integrated weighting factors and the preliminary evaluation are used for comprehensive evaluation of lathe bed quality. |
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| Keywords: | quality thermal aging weight fuzzy comprehensive evaluation |
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