Modal Analysis of Solid Rocket Motor

Abstract

How to avoid the natural frequency closing to the environment disturbance frequency is a very complicated problem in the solid rocket motor engine .Once the resonance phenomenon happened, Solid rocket motors will be subjected to a larger dynamic stress environment, resulting in engine damage. In this paper, the modal analysis of a solid rocket motor under a certain constraint condition is analyzed by using the finite element software ANSYS. It utilizes the dynamic characteristics to appraise and provides for further research on structural improve and design work in the solid rocket motor engine.