METHOD FOR ANALYZING FLUID-STRUCTURE INTERACTION OF AIR LAUNCHING

摘要

A method for analyzing the structure of an air-launch rocket by predicting deformation is provided to predict the deformation process of the rocket by flow of deformation by the flow speed of the rocket. An effort analysis module(110) evaluates surface pressure of the air-launch rocket through a computation interpretation by using 3D Euler equation. The effort analysis module uses the integration technique and spatial difference branch. A structure analysis module(120) calculates the constructive deformation amount of the rocket by using the surface pressure of the rocket. The structure analysis module implements the shape of the rocket in consideration of the amount of deformation and the structural analysis lattice system is comprised the structural analysis is performed. A link analysis module(130) determines whether the amount of deformation which is calculated by using the constructive deformation amount of the rocket is less than the predetermined amount of deformation.