Title :
Risk evaluation of NC machine tools based on fuzzy weighted geometric mean
Author :
Shen Gui-xiang ; Fan Shao-hua ; Zhang Ying-zhi ; Wei Ling-hui ; Jia Ya-zhou
Author_Institution :
Coll. of Mech. Sci. & Eng., Jilin Univ., Changchun, China
Abstract :
According to the data collected from 23 NC machine tools from one type, based on the fuzzy FMEA model, a Failure modes Analysis have been carried out. Fuzzy linguistic variables were introduced into the analysis, and the three risk factors were given different weights, Each FRPNs of the failure modes were calculated by linear programming, and then the failure mode which influence the NC lathe the most have been pointed out, this results can provide useful basis on how to eliminate these failure models and how to improve the reliability of NC machine tools of this type.
Keywords :
failure analysis; fuzzy set theory; lathes; linear programming; numerical control; reliability; risk analysis; NC lathe; NC machine tool reliability; NC machine tools; failure modes analysis; fuzzy FMEA model; fuzzy linguistic variables; fuzzy weighted geometric mean; linear programming; risk evaluation; risk factors; Computer numerical control; Equations; Linear programming; Mathematical model; Pragmatics; Programming; Reliability; Fuzzy linguistic variables; Fuzzy risk priority numbers1; NC machine tools; failure mode and effects analysis;
Conference_Titel :
Industrial Engineering and Engineering Management (IEEM), 2010 IEEE International Conference on
Conference_Location :
Macao
Print_ISBN :
978-1-4244-8501-7
Electronic_ISBN :
2157-3611
DOI :
10.1109/IEEM.2010.5674399
