E-CAFD: EXTENDED-EFFECT DRIVEN COMPUTER-AIDED FUNCTIONAL DESIGN

摘要

To match for complex product function and to solve insufficient computer aid for functional design, the Extended-Effect driven Function-Behavior-Structure (EE-FBS) model is constructed. A multi-flow and multi-pole effect model is presented by extending the one with single input/output flow in TRIZ. Four effect patterns and three reasoning methods are proposed to create effect chains. The FBS model is extended to an EE-FBS model based on effect through the description of the law of mapping overall function to external behavior, from external behavior to sub-behavior, etc. A functional design process was presented based on the EE-FBS model, and the computer-aided functional design software system is developed. A design example for functional design of Chinese dropping pill medicine demonstrates the proposed method is feasible.