Comprehensive Evaluation of Maintenance for Girder of Crane
Based on hierarchical structure girder performance using analytic hierarchy process and fuzzy comprehensive evaluation method,has Established a comprehensive evaluation crane girders quantitative calculation model of maintenance way.The model considers the analytical hierarchy process(ahp) according to the expert evaluation matrix,quantitative analysis of the weights of evaluation factors layer;the fuzzy theory,the paper proposes a kind of positive and negative index,the membership functions of the building method established the standard membership matrix,effectively eliminate the qualitative factors impact of a quantitative representation,and then when the weights of evaluation factors by integrating and membership matrix logic,calculates by way of each maintenance way,in order to reflect the comprehensive evaluation value of each maintenance way the suitable extent girder.