The representation of conceptual product based on component-connector design feature with P/T net approach

In this paper, the entity-connector and non-entity-connector of design feature are defined and the connector is divided into two classes. The P/T net-based hierarchy structure model of the component-connector design feature and the energy flowing P/T net model of the primitive mechanism are built up. The product model is mathematically described from the perspectives of the function, design feature, attribute and their relationships. Then the P/T net-based hierarchy structural model is applied to represent the conceptual product, and the energy flowing P/T net is established to simulate the working status of the conceptual product.