一种机电产品绿色度评估指标权重计算方法

Method on weights decision of green-assessment-indexes for electromechanical products

针对产品绿色度评估指标权重的计算问题,提出了一种基于网络分析法(ANP)和多生命周期理论相结合的指标权重计算方法.首先,分析了产品的生命周期各阶段的指标构成;然后,根据各层次中指标间的关联性,利用ANP法计算得到生命周期各阶段中评估指标的权重值.分析结果表明,该方法比单纯利用层次分析法更全面,更能客观反映产品的绿色度水平.

Aiming at the problem of weights decision of green-assessment-indexes, a new method based on the analytic network process （ANP） and theory of life cycle assessment （LCA） is proposed to compute the assessment indexes＇ weights. Firstly, the assessment indexes in life cycles of a product are presented. Secondly, according to the correlations among different indexes in the same hierarchy, the weights of green- assessment-indexes in different life cycles of a product are decided by the ANP. The results indicate that the analysis by the proposed method is more comprehensive and objective than that by the AHP alone.