From Functions to Tolerance Analysis Models by Using Energy Flow Model in Characteristics-Properties Modelling

In the product design process, the designer needs to figure out how to integrate tolerancing process to ensure the transition from function to tolerances. Our proposition is to use energy flow modeling in Characteristics-Properties Modeling (CPM). CPM creates a framework containing function and structure of the product. Energy flow creates the link between function and structure in CPM using energy-based behavior modeling. Considering both qualitative and quantitative aspects, the result is an approach to create a quantitative function-behavior- structure relationship to ensure the transition from function to geometrical specifications. This systematic approach can be used to evaluate the tolerance impact on system's function.