A New Type of Computer Aided Engineering Integration for Design Engineers - First Order Analysis Linked with ANSYS
In current automotive development, innovations to reduce development time and to use a virtual prototype have been numerous and progressive. Computer Aided Engineering (CAE) has played an important role in these innovations. CAE numerically estimates the performance of automobiles and proposes alternative ideas that lead to higher performance without building physical prototypes. However, current CAE is usually not used at the initial design phase due to its sophisticated, difficult to use, and complex functions and characteristics. We have proposed a new type of CAE, First Order Analysis (FOA) in order to overcome these problems and quickly obtain optimal designs. In this method, the structural analysis mainly deals with beam and panel elements because we focused on an automotive body structure and suspension system. However, in order to apply FOA to general mechanical systems; such as, machine tools and robotic system, we need to extend the concept of FOA. The important issue of this extension is to correctly model the system being analyzed since we use only beam and panel elements. It is very useful to link FOA with commercial software since this software includes other elements and functions. This is especially true with ANSYS which has a powerful solver for structural and multi-physical analyses, and can provide finite elements and analysis functions required for the FOA extensions. In this paper, first, we present the concept of FOA and examples. Then, we propose a way to develop FOA linked with ANSYS. In this hybrid system, ANSYS Parametric Design Language (APDL) is utilized to make analysis models and to set analysis conditions. Some prototypes are presented to depict the new concept and its availability for mechanical designs.