基于模糊AHP-TOPSIS的环境意识设计方案相对绿色度研究

 针对机械产品环境意识设计方案评价中评价指标值具有模糊性、指标权重具有不完全性的问题，提出基于模糊AHPTOPSIS的环境意识设计机械产品相对绿色度综合评价方法。为充分结合两者的优点，先运用模糊AHP将各指标因素划分成有序层次，科学确定各层次权重，再结合模糊TOPSIS构建模糊AHP-TOPSIS综合评判模型，根据有限个成本型和效益型定性定量指标与理想化目标的接近程度进行排序确定最优方案。该方法严格区分了效益型和成本型定性指标、效益型和成本型定量指标，构建完善了基于全生命周期的环境意识设计机械产品指标评价的原则与体系。通过实例分析，表明该评价方法在理论上具有科学性，在实践中具有可操作性。

Evaluation system and relative green degree of environmentally oriented design based on fuzzy AHP-TOPSIS

To solve the problems of the index's fuzziness and the corresponding weight's incompleteness in the evaluation of various schemes of mechanical products in an environmentally oriented design, a synthetical study method of the relative green degree based on the fuzzy AHP-TOPSIS is developed to improve the related solutions. The advantages of the fuzzy AHP and the fuzzy TOPSIS are well combined. Firstly the fuzzy AHP is applied to divide the indexes into an orderly hierarchy to determine the weight of each hierarchy level. Then the fuzzy AHP-TOPSIS is established combined with the fuzzy AHP to determine the optimal scheme according to the degree of closeness between certain qualitative and quantitative indices of benefit and of cost and the ideal solution. Both the quantitative and qualitative indices of benefit and of cost are distinguished strictly, and the principle and the systems of index evaluation of mechanical products by environmentally oriented design are established based on the full life circle. The case analysis shows that it is reasonable in theory and functional in practice, as a result, it is effective and feasible.