Title:
METHOD FOR EVALUATING COMPREHENSIVE PERFORMANCE OF NUMERICAL CONTROL MACHINE TOOL BASED ON IMPROVED PULL-APART GRADE METHOD
Document Type and Number:
WIPO Patent Application WO/2020/041955
Kind Code:
A1
Abstract:
A method for evaluating a comprehensive performance of a numerical control machine tool based on an improved pull-apart grade method, relating to the technical field of performance evaluations of numerical control machine tools. The method comprises: performing standardization processing on performance index data of the machine tool by using a linear proportional method; determining a subjective weight of each index according to an order relation analysis method; determining two objective weights of each index by using an entropy weight method and a mean square deviation method; synthesizing information of the subjective and objective weights on the basis of the principle of a vector Pearson correlation coefficient; performing weighting processing on an index by using a comprehensive weight; determining a final weight coefficient of the index by means of a positive definite matrix corresponding to a weighted index matrix, and obtaining a comprehensive evaluation value of a third-level index on the basis of a linear weighted evaluation function; and finally, calculating a comprehensive evaluation value of a large-scale system upwards layer by layer by using a similar method. The present invention is used for comprehensive performance evaluations of various numerical control machine tools and lateral comparison of specific performances of different machine tools, and provides a scientific and operable evaluation method and procedure for comprehensive performance evaluations of the machine tools.
Inventors:
LIU KUO (CN)
LIU HAIBO (CN)
LI TE (CN)
CHU HENG (CN)
WANG YONGQING (CN)
JIA ZHENYUAN (CN)
LIU HAIBO (CN)
LI TE (CN)
CHU HENG (CN)
WANG YONGQING (CN)
JIA ZHENYUAN (CN)
Application Number:
PCT/CN2018/102608
Publication Date:
March 05, 2020
Filing Date:
August 28, 2018
Export Citation:
Assignee:
UNIV DALIAN TECH (CN)
International Classes:
G06Q10/06
Foreign References:
| CN107479494A | 2017-12-15 | |||
| CN104992011A | 2015-10-21 | |||
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| US20070067059A1 | 2007-03-22 | |||
| CN107316140A | 2017-11-03 | |||
| CN104898568A | 2015-09-09 | |||
| CN107695775A | 2018-02-16 | |||
| CN105278460A | 2016-01-27 |
Other References:
FENG, ZHIMING ET AL.: "Fuzzy Comprehensive Evaluation of the Accuracy of CNC Machine Tools Based on AHP", HIGH TECHNOLOGY LETTERS, vol. 24, no. 2, 28 February 2014 (2014-02-28), pages 183 - 188
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