Research on Reliability Allocation Method for NC Grinding Machine

Abstract:

Reliability allocation is a collection problem of engineering decision, multiple factors comprehensive balance and process optimization. Considering that both the factors that influenced the reliability allocation and their weights have the characteristics of uncertainty, which always be ignored .Therefore a subjective and objective combined weights method that combined the entropy method and Interval analysis method was proposed. Taking NC grinding machine as an example, firstly, establish the reliability objective function based on the minimum discrimination information principle, and employ the Lagrange multiplier to get the combined weights of the 6 factors. Then use the fuzzy comprehensive allocation method to obtain the reliability allocation results, which was compared with the actual accumulated data, so that the feasibility and effectiveness of this method was verified.

• Periodical: Applied Mechanics and Materials (Volumes 599-601)
• Pages: 1244-1248
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.599-601.1244
• Online since: August 2014
• Authors: Hang Hong He*
• Keywords: Combined Weight, Entropy, Interval Analysis, NC Grinding Machine, Reliability Allocation

References

[1] Zhigang Tian, Ming J. Zuo. Redundancy allocation for multi-state systems using physical programming and genetic algorithms[J]. Reliability Engineering and System Safety 91(2006): 1049-1056.

DOI: 10.1016/j.ress.2005.11.039

[2] Wang Yi-qiang, YAM R C M, Zuo M J, et al. A comprehensive reliability allocation method for design of CNC lathes[J]. Reliability Engineering and System Safety . 72(2001): 247-252.

DOI: 10.1016/s0951-8320(01)00018-7

[3] A.O. Charles Elegbede, Chengbin Chu, et al. Reliability allocation through cost minimization[J]. IEEE TRANSACTIONS ON RELIABILITY. 52(2003): 106-111.

DOI: 10.1109/tr.2002.807242

[4] Hao Qingbo, Yang Zhaojun, Chen Fei, et al. A fuzzy maintainability allocation method for NC machine tools based on interval analysis[C]/Proceedings of 2011 9th International Conference on Reliability , Maintainability and Safety. IEEE Computer Society, 2011: 889-896.

DOI: 10.1109/icrms.2011.5979393

[5] Zhang Genbao, Liu Jian, Wang Guoqiang. Fuzzy reliability allocation of CNC machine tools based on task [J]. Computer Integrated Manufacturing Systems. 18(2012): 768-774.

[6] Zhu xuelong. Fundamentals of Applied Information Theory [M]. Beijing: Tsinghua University Press, (2001).

[7] Hao Qingbo. Fuzzy Comprehensive Allocation and Prediction for NC Machine Tools Reliability and Maintainability [D]. Ji Lin University. (2012).