针对现有数控摆台综合性能指标体系不健全、评价方法不适用等问题,首先,从精度、精度稳定性、可靠性、静-动-热特性及效率这 5 个方面建立数控摆台综合性能指标体系,提出 1 种基于皮尔森相关系数组合赋权的 TOPSIS(technique for order preference by similarity to an ideal solution)综合评价方法.其次,利用序列分析法、德尔菲专家咨询法、熵权法及均方差法计算主客观权重,通过皮尔森相关系数法集成,采用TOPSIS法获取数控摆台综合性能评价结果.最后,对 4 台数控摆台综合性能进行测试,并以测试数据为例进行分析,验证了该方法的有效性和实用性.
Comprehensive performance index system of the CNC swing table Research on comprehensive evaluation method
Aiming at problems such as the incomplete comprehensive performance index system of the CNC swing table and the inapplicability of evaluation methods.Firstly,the comprehensive performance index system of the CNC swing table was established from five aspects,namely accuracy,accuracy stability,reliability,static-dynamic-thermal characteristics and efficiency,and a TOPSIS(technique for order preference by similarity to an ideal solution)comprehensive evaluation method based on Pearson correlation coefficient combination weighting was proposed.Secondly,the subjective and objective weights are calculated by using the sequence analysis method,Delphi expert consultation method,entropy weight method and mean square deviation method.The comprehensive performance evaluation results of the CNC swing table are obtained by the technique for order preference by similarity to an ideal solution(TOPSIS)method through the integration of Pearson correlation coefficient method.Finally,the comprehensive performance of four CNC swing tables is tested,and the test data is taken as an example to verify the effectiveness and practicability of the method.
CNC swing tableperformance index systemcomprehensive performance evaluationpearson corre-lation coefficientTOPSIS
NETL
NSTL
万方数据
