Abstract: Due to the intercoupling relationships between functional structures,the component's performance might be degraded with optimizing the several local structures in design stage of remanufacturing.To deal with this issue,the concept of structure coupling matrix was presented.The structure coupling function matrix was established to express the mapping relationships between structural strength and structural characteristic parameters,and the structure influence factor matrix was given to present the impacts of structural characteristic parameters on structural strength.Based on structure coupling matrix,optimization design method of predecisional remanufacturing was proposed to improve the component's overall performance.One 6L240 engine crankshaft was studied as an instance to validate the effectiveness and feasibility of this method.

Key words: structure coupling, predecisional remanufacturing, structure coupling matrix, optimization design, remanufacturing, product design

摘要： 在再制造设计阶段,由于零件结构间的相互耦合,片面优化局部结构而导致零件整体性能劣化的现象时有发生。为解决这一问题,提出结构耦合矩阵的概念,建立了结构耦合函数矩阵来表征结构强度与结构特征参数的映射关系,并建立了结构影响因子矩阵来反映结构强度受结构特征参数的影响程度。给出基于结构耦合矩阵的再制造优化设计方法,以零件整体强度优化为目标进行参数优化设计,实现了零件整体性能提升。以6L240型号柴油机曲轴为例,验证了该方法的有效性和可行性。

关键词: 结构耦合, 主动再制造, 结构耦合矩阵, 优化设计, 再制造, 产品设计