Reliability Modelling of CNC Machine Tools Based on the Improved Maximum Likelihood Estimation Method
المؤلفون المشاركون
Yang, Zhaojun
Chen, Chuanhai
Zhu, Dong
Tian, Hailong
Guo, Jinyan
Li, Shizheng
المصدر
Mathematical Problems in Engineering
العدد
المجلد 2018، العدد 2018 (31 ديسمبر/كانون الأول 2018)، ص ص. 1-11، 11ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2018-05-10
دولة النشر
مصر
عدد الصفحات
11
التخصصات الرئيسية
الملخص EN
The existing standard reliability models for computerized numerical control (CNC) machine tools are not satisfactory and they fall short of predicting failure rates or lifetime of key functional parts of CNC machine tools.
This is attributed to two reasons: the small sample size of failure data and a large truncated ratio of the censored failure data.
Improved correction method (ICM), maximum likelihood estimation (MLE), and empirical maximum likelihood estimation (EMLE) are presented and compared with each other in this study.
In order to improve the shortage of reliability models developed by the traditional methods, an improved maximum likelihood estimation method (IMLE) is proposed through enlarging censored failure data.
Moreover, the correction factors of mean ratio to extend censored time are designed, by which the censored failure data can be close to the true time between failures (TBF).
Furthermore, a solution method of correction factors considering amount of calculation is proposed to meet the requirements of calculation precision.
Finally, verification by the orthogonal experiment is simulated to verify the proposed model.
The verifying test results show that the proposed method can be applied in reliability modelling for not only CNC machine tools but also the key functional parts of CNC machine tools.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Yang, Zhaojun& Zhu, Dong& Chen, Chuanhai& Tian, Hailong& Guo, Jinyan& Li, Shizheng. 2018. Reliability Modelling of CNC Machine Tools Based on the Improved Maximum Likelihood Estimation Method. Mathematical Problems in Engineering،Vol. 2018, no. 2018, pp.1-11.
https://search.emarefa.net/detail/BIM-1207393
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Yang, Zhaojun…[et al.]. Reliability Modelling of CNC Machine Tools Based on the Improved Maximum Likelihood Estimation Method. Mathematical Problems in Engineering No. 2018 (2018), pp.1-11.
https://search.emarefa.net/detail/BIM-1207393
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Yang, Zhaojun& Zhu, Dong& Chen, Chuanhai& Tian, Hailong& Guo, Jinyan& Li, Shizheng. Reliability Modelling of CNC Machine Tools Based on the Improved Maximum Likelihood Estimation Method. Mathematical Problems in Engineering. 2018. Vol. 2018, no. 2018, pp.1-11.
https://search.emarefa.net/detail/BIM-1207393
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1207393
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر