Study on Simulation Modeling and Approximate Synchronous Computation Technology for the Active Structural Stiffness Design

Abstract

In the past, structure design mainly adopted strength criterion. At the same time, many problems occurred due to structural stiffness deficiency. In order to resolve many practical problems resulted from structural stiffness in aircraft structure, and draw out structural potential better, the design idea of active structural stiffness, namely, the method of active structural stiffness design (ASSD) is put forward at the beginning of the structure design. For ASSD, there are three key factors should be considered, that is, stiffness criterion, simulation modeling and computation analysis. In this paper, stiffness criterion, which is important at the preliminary stage of structural design, will be researched; Simulation modeling adopts parametric modeling technology; computation analysis is based on engineering beam theory, which is compiled and embedded into CATIA to compute structural stiffness. Using simulation modeling and computation analysis technologies, ASSD can be achieved quickly and conveniently.