A quantitative measure-based method for the design and evaluation of sustainable products is proposed. The method uses multi-criteria in product design to meet sustainable requirements from qualitative criteria to quantitative metrics. The method integrates quality function deployment concepts with the life cycle assessment to establish a quantitative method for sustainable product development. It considers both customer needs and sustainable requirements by mapping these needs into design details using the axiomatic design and benchmarking methods. The method is applied in the wheelchair design. Four popular wheelchairs in the market are selected as benchmarks and are rated based on customer needs and sustainable criteria. The design matrix identifies the relationship of functional requirements and design parameters of the wheelchair. Compared to the best benchmark product, the proposed wheelchair can reduce costs by 13.8%, environment footprints 18.55%, mass 4.5%, and components 2.2%.
开放式结构产品为大批量个性化生产提供了一个持续的产品架构,它具有可持续性、可适应性、可升级性和可扩展性的特点.开放式结构产品由开放式结构的产品平台和通用的接口构成,通过集成源于不同生产商的模块满足用户的个性化需求.建立产品开放指标的数学模型在产品设计阶段评估产品在生命周期中的开放度.从产品的技术因素方面提出了2个关键指标:产品的兼容性(compatibility of the product,COP)和生命周期的模块化(life cycle modularity,LCM),用来描述产品的开放特征和开放程度.最后以工业产品纸袋折叠机作为实例对提出方法进行了验证和分析.