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Journal of Projectiles, Rockets, Missiles and Guidance >

2021 , Vol. 41 >Issue 1: 117 - 119

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2021.01.026

Modal Analysis of a Solid Rocket Motor

  • LI Jiwei 1 ,
  • XING Qiang 1 ,
  • LIN Hezhang 2 ,
  • LUO Zhigang 2
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  • 1 China Airborne Missile Academy,Henan Luoyang 471009,China
  • 2 No. 95285 Unit,Guangxi Guilin 541000,China

Received date: 2020-06-23

  Online published: 2025-02-11

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Abstract

A solid rocket model of a missile is established by using finite element software. The modal calculations of the solid motor with and without propellant are carried out. The calculation results show that the motor passive model is in good agreement with the test results, and the reliability of the calculation method is verified. Two methods are used for modeling the active phase of the motor. One ignores the stiffness of the propellant and only equates its mass to the engine housing; the other is to conduct solid modeling of the propellant. There is a little error between the calculated results and the test results by using the equivalent mass method and the solid modeling method by using the propellant is in good agreement with the test results.

Key words： missile; solid rocket motor; modal analysis; solid propellant

Cite this article

LI Jiwei , XING Qiang , LIN Hezhang , LUO Zhigang . Modal Analysis of a Solid Rocket Motor[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2021 , 41(1) : 117 -119 . DOI: 10.15892/j.cnki.djzdxb.2021.01.026

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