中文摘要：

产品设计是一个冲突不断产生和消解的过程,尤其是在绿色设计过程中,产品新增加绿色属性与产品原有功能、性能之间产生的冲突问题是制约其有效实施的难点、瓶颈之一。为此,将可拓学中转换桥方法引入绿色设计冲突消解研究。针对绿色设计中的冲突问题进行了形式化基元模型表达,构建了冲突问题定量描述与消解的转换桥共存度函数和转换桥可拓变换函数,并给出了基于转换桥模型的冲突消解策略及冲突消解的基本步骤与流程。并以油锯产品为例,对其绿色属性（减振）与原有属性（可操作性）之间的对立冲突问题进行了转换桥消解。经验证,所提方法对于消解产品绿色设计过程中不同领域知识之间的大量对立冲突问题是一种有效思路与方法。

英文摘要：

Product design is a process of conflict generation and solution, especially in the green design process, where a conflict problem between new additional green attributes and original product function or performance is one difficulties and bottlenecks in effective implementation. For this reason, a transforming bridge in extension theory is introduced to research on conflict solution in green design. The conflict problem of green design is formally expressed by an extension basic-element model. The coexistence function and extension transformation function of transforming bridge are established, so that conflict problems can be quantitatively described and solved, and then the strategy, the basic steps and processes of conflict solution based on the transforming bridge are given. Finally, an oil saw product is taken as an example, the conflict problem between its green attributes （vibration reduction） and original attributes （manipulability） is solved by transforming bridge. As proved, the proposed method is effective in solving lots of conflict problems among different fields of knowledge during the process of green product design.