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Journal of Projectiles, Rockets, Missiles and Guidance >

2019 , Vol. 39 >Issue 6: 138 - 141

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2019.06.030

Analysis of Influence of Length Diameter Ratio and m on the Structure of Combined Charge under Temperature Loading

  • WANG Chenfei ,
  • XU Jinsheng ,
  • CHEN Xiong
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  • School of Mechanical Engineering, NJUST, Nanjing 210094, China

Received date: 2018-06-14

  Online published: 2025-05-12

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Abstract

In the process of solid rocket motor charge design,the ratio of the internal and external diameter of the charge is generally defined as m.In order to study the effect of the length diameter ratio and number m of the combined charge on the integrity of the charge structure under the temperature loading,a three-dimensional viscoelastic model was adopted to select 9 kinds of length diameter ratio and 7 kinds of numbers m,and a total of 63 groups of models were selected,and the structure integrity of the combined charge was calculated.The results show that the risk point of the charge are affected by the numbers m and length diameter ratio,and when the length diameter ratio is greater than 4,the variation of the value of the dangerous point of the charge tends to be stable.

Key words： number m; combined charge; length diameter ratio; temperature loading; integrity of the charge structure

Cite this article

WANG Chenfei , XU Jinsheng , CHEN Xiong . Analysis of Influence of Length Diameter Ratio and m on the Structure of Combined Charge under Temperature Loading[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2019 , 39(6) : 138 -141 . DOI: 10.15892/j.cnki.djzdxb.2019.06.030

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