Reliability Model for subsystems of CNC Machine Tools based on the Repair Degree

DOI

10.2991/icmse-15.2015.262How to use a DOI?

Keywords

CNC Machine Tools; Subsystem; Reliability model; repair degree

Abstract

The traditional reliability models of CNC machine tools are based on the assumption that the machine after repair is as-good-as-new or as-bad-as-new. But it is not the precise model compared with the Engineering practice. This article focuses on the repair degree to the sub-system of CNC machine tools, and the reliability modeling method was proposed based on incomplete repair circumstances, considering the maintenance degrees. Meanwhile, the model’s parameters are calculated using the method integrating maximum likelihood method. Genetic algorithm is used in the solving process. The model is applied to actual data, the results shows that: this model can get the maintenance degrees which reflecting the real states of each sub-system’s changes and the intersection of the different failure-periods. It can be the references and basis for the design of reliability and maintainability.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Xiaojuan Chen
AU  - Binbin Xu
AU  - Zhaojun Yang
AU  - Fei Chen
AU  - Guangwei Meng
PY  - 2015/12
DA  - 2015/12
TI  - Reliability Model for subsystems of CNC Machine Tools based on the Repair Degree
BT  - Proceedings of the 2015 6th International Conference on Manufacturing Science and Engineering
PB  - Atlantis Press
SP  - 1452
EP  - 1459
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmse-15.2015.262
DO  - 10.2991/icmse-15.2015.262
ID  - Chen2015/12
ER  -