Comprehensive Evaluation on Reliability of Machine Tools Based on Extension Method to Determine Membership Degree

Abstract:

To solve acquired the membership degree in fuzzy evaluation. we use correlation function in extension theory to calculate the degree of association between evaluation indicators and fuzzy scales, and then the degree of association is done standers conversion and normalized processing,, getting the membership value of evaluation matrix in fuzzy comprehensive evaluation. Comprising traditional statistical methods and expert evaluation method, the membership value of evaluation matrix which is gat through correlation function method of extension theory is more simple and reasonable. Comprehensive evaluation value is got from Calculating linear weighted between evaluation matrix and the index weight coming from analytic hierarchy process. Finally, using two type of home made NC machine tools as example to do the practical application study of the proposed method, the results show that this method can give the reasonable evaluation.

• Periodical: Advanced Materials Research (Volumes 655-657)
• Pages: 1218-1223
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.655-657.1218
• Online since: January 2013
• Authors: Hong Wei Zhao, Xin Yuan He, Han Wei Wang, He Wang, Zhao Jun Yang, Yin Kai Wang, Wen Shuang Zhang
• Keywords: Comprehensive Evaluation on Reliability, Correlation Function, Fuzzy Evaluation, Machine Tool, Membership Degree

References

[1] Y.Z. Jia: The key of advancing numerically controlled machine reliability to expedite revival equipment manufacturing. China Manufacturing Information Vol. 6(2006), pp.42-43.

[2] B.G. Wang: Engineering Method of Automobile Reliability. (China Machine Press, PRC 1991).

[3] G.X. Shen, Y.Z. Zhang, Y.X. Xue, et. al: Comprehensive evaluation on reliability of numerically controlled machine tool based on entropy weight method. Journal of Jilin University (Engineering and Technology Edition) Vol. 39(5) (2009).

[4] Y.C. Ye, L.H. Ke, D.Y. Huang: System Comprehensive Evaluation Technology and its Application. (Metallurgical Industry Press, PRC 2006).

[5] G.P. Wang, Y.Z. Jia, G.W. Zhou: Evaluation Method and Application of CNC Machine Tool's Green Degree Based on Fuzzy-EAHP. Journal of Mechanical Engineering Vol. 46(3) (2010), pp.141-147.

DOI: 10.3901/jme.2010.03.141

[6] W. Cai: Matter-element Model and its Application. (Science and Technology Literature Press, PRC 1998).

[7] K.D. Liu, Y. J Pang, W.G. Lin: Membership transforming algorithm in Multi-index decision and its application. Acta Automatica Sinica Vol. 35(3) (2009), pp.315-319.

DOI: 10.3724/sp.j.1004.2009.00313

[8] H.B. Zhang, Z. X, Jia, A,M. Xin. Reliability evaluation of DK77 series WEDM based on fuzzy comprehensive evaluation. Machine Tool and Hydraulics, Vol. 37(11) (2009), pp.246-247.

[9] G.X. Shen, N. Shao, Y.Z. Zhang, et al. Reliability evaluation of numerically controlled machine tool based on extenics theory. Journal of Jilin University (Engineering and Technology Edition), Vol. 41(1) (2011), pp.106-109.