The Design Analysis for Reliability Tool

The goal of the Design Analysis for Reliability Tool (DART) is to provide the designer of dynamic physical systems with a mathematical modeling tool. DART automates some of the steps involved in building mathematical models. The bond graph method is used as the dynamic system representation. The bond graph is entered into DART through a graphic interface. The state equations are derived from the bond graph. Specific constitutive laws for the general relationships represented by the bond graph nodes are entered through a full screen editor. The equations are solved using the Dynamic Simulation Language (DSL). DART generates and solves equations for the class of problems with state equations of the form dx/dt = ¿(x, u). DART generates but cannot solve state equations of the form dx/dt = ¿(x, dx/dt, u) because DSL does not handle implicit equations of this type. DART does handle algebraic implicit equations.