关键词: 设计过程复杂性, 附加效应, 过程模型, 产品设计, 复杂机电系统

Abstract: To realize the functional requirement of system was the essence of design,but the Design-Centric Complexity (DCC) existed in the system was one of the main reasons for failure to achieve functional requirements.By analyzing the cause of DCC,transforming it into additional effect chain and eliminating the additional effect of system,DCC was reduced.Based on definition of effect,the definition of ideal effect and additional effect were given,and the relationship between DCC and additional effect was analyzed.The design matrix A to express relationship between design parameters and functional requirements was extended to general design matrix As,which not only expressed the relationship among design parameters but also expressed super system's influence on system.Through the relationship between functional requirements,general design matrix and additional effect,the analysis model of DCC process based on additional effect was proposed.An engineering instance was used to verified the design process.

Key words: design-centric complexity, additional effect, process model, product design, complex mechatronics system