Abstract
In this study, a general procedure and kernel of the AutoDyn7 (AUTOmobile DYNamics in G7) are explained. In the AutoDyn7 program, an efficient and systematic formulation for dynamic analysis of multibody systems with flexible bodies is derived using the velocity transformation technique. In order to reduce the number of elastic coordinates, elastic deformations are represented by the vibration normal modes obtained from finite element analysis. The Rapid-App for GUI (Graphic User Interface) builder and the Open Inventor for 3D graphic library have been employed to develop these programs in Silicon Graphics workstation. Several special purpose modules of the AutoDyn7 program are introduced to analyze vehicle dynamic characteristics, with efficiency and precision. To show the applications of the AutoDyn7 program, a vehicle modeling and stability analysis are performed with various running conditions.
