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Journal of Projectiles, Rockets, Missiles and Guidance >

2021 , Vol. 41 >Issue 4: 108 - 112

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2021.04.024

The Effect of Solid Rocket Motor Multi-layer Structure Parameter Change on Lamb Wave

  • GUO Xufei 1, 2 ,
  • HAN Yan 1
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  • 1 Shanxi Key Laboratory of Signal Capturing & Processing, North University of China, Taiyuan 030051, China
  • 2 Luliang University, Shanxi Lvliang 033001, China

Received date: 2020-12-28

  Online published: 2025-02-13

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Abstract

In order to predict the bonding quality between the solid rocket motor multilayer structure and the change of the grain thickness during the combustion process of the engine, the semi-analytical finite element method is applied to solve the Lamb wave dispersion curves of the three different interface bonding qualities of the solid rocket motor. The results show that when the quality of the adhesive layer is relatively poor, the overall dispersion curve drifts to the left. When the thickness of the grain is greater than 100 mm, the dispersion curve no longer changes. As the thickness of the grain gradually decreases from 100 mm to 0 mm, the overall dispersion curve drifts to the right, and the number of orders decreases, and the low-order modal waves change significantly.

Key words： solid rocket motor; propellant; semi-analytical finite element method; Lamb wave; dispersion curve

Cite this article

GUO Xufei , HAN Yan . The Effect of Solid Rocket Motor Multi-layer Structure Parameter Change on Lamb Wave[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2021 , 41(4) : 108 -112 . DOI: 10.15892/j.cnki.djzdxb.2021.04.024

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