Abstract: In order to collaboratively analyze the green design and assessment processes of electromechanical products, the correlation mapping between green design and life cycle stages was established using the modeling method of multi-domain correlation of product design domain, life cycle activity domain and environmental impact assessment domain. The life cycle activity domain was correlated with the environmental impact assessment domain through the calculation method of life cycle assessment parameters.The LCA calculation tool was developed, and the calculation method of LCA parameters was applied to the whole life cycle stage of product green design. When the green design information was changed, just adjusting the corresponding parameters in the calculation tool, the environmental impact could be obtained after the design information was changed in real time, so as to help designers to re-design the product to green design. CWT3300D-165 wind turbine was used as a typical electromechanical product for application verification, and a product structure tree was established to calculate the environmental impact of the whole machine, components and parts of the product. From the calculation results, it may be seen that the two first-level components, foundation and nacelle, have the most serious environmental impact and need to focus on greenness in the product design stages and improve the green design scheme.

Key words: life cycle assessment(LCA), multi-domain association, function-structure-material-process-transport(FSMPT) model, parametric calculation

摘要： 为了协同分析机电产品绿色设计与评价过程，采用产品设计域、生命周期活动域和环境影响评价域多域关联的建模方法建立绿色设计与生命周期阶段之间的关联映射,通过生命周期评价参数计算方法，将生命周期活动域与环境影响评价域相关联。开发生命周期评价计算工具，将生命周期评价参数计算方法应用于产品绿色设计全生命周期阶段，当绿色设计信息改变时，只需在计算工具中调整相应参数就可以实时地得到设计信息更改之后的环境影响，从而帮助设计人员重新对产品进行绿色设计。以CWT3300D-165型风力发电机作为典型机电产品进行应用验证，建立产品结构树，计算产品整机、部件、零件的环境影响。由计算结果可知，地基、机舱这两个一级零部件对环境的影响最严重，需在产品设计阶段着重考虑绿色性，改进绿色设计方案。

关键词: 生命周期评价, 多域关联, FSMPT模型, 参数化计算