[an error occurred while processing this directive] [an error occurred while processing this directive] [an error occurred while processing this directive]
[an error occurred while processing this directive]

Journal of Projectiles, Rockets, Missiles and Guidance >

2022 , Vol. 42 >Issue 3: 24 - 27

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2022.03.005

Numerical Model and Analysis of Dynamic Response of Viscoelastic Charge under Random Axial Impact

  • CHANG Hao ,
  • FANG Fan ,
  • HU Di ,
  • SUN Yadong ,
  • CHEN Liaxing ,
  • ZHAO Teng
Expand
  • No.32382 Unit,Beijing 100039,China

Received date: 2020-09-18

  Online published: 2025-02-03

Fold

Abstract

The three-dimensional model of free loading solid motor is established, and the three-dimensional model is analyzed by finite element method based on the integral viscoelastic constitutive relation of grain. By analyzing the dynamic response under the random axial vibration, the stress distribution and dangerous position of the rocket motor during flying and stage separation are discussed.The analysis results present that the strength at the middle of the rocket grain has significant influence on structural integrity and reliability of the rocket motor. Thus, the grain structure and assemble method of the rocket grain should be well considered in the design procedure. The analysis method and result provide beneficial reference for the design of free filling rocket motor.

Key words： random axial impact; free filling solid rocket motor; finite element analysis; dynamic response; modal

Cite this article

CHANG Hao , FANG Fan , HU Di , SUN Yadong , CHEN Liaxing , ZHAO Teng . Numerical Model and Analysis of Dynamic Response of Viscoelastic Charge under Random Axial Impact[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2022 , 42(3) : 24 -27 . DOI: 10.15892/j.cnki.djzdxb.2022.03.005

[an error occurred while processing this directive]

References

Publishing order | Descend order by publishing year | Descend order by cited within
[1]
魏卫, 王宁飞. 高加速度冲击下固体推进剂药柱轴向形变的数值模拟[J]. 固体火箭技术, 2003, 26(2):42-45.

[2]
吴志桥, 张书俊, 任钧国. 近似不可压缩粘弹性结构动力响应的有限元分析[J]. 应用力学学报, 2008, 25(2):188-191.

[3]
YADAGIRI S, REDDY C P. Viscoelastic analysis of nearly incompressible solids[J]. Computers & Structures, 1985, 20(5): 817-825.

[4]
NAGTEGAAL J C, PARKS D M, RICE J R. On numerically accurate finite element solutions in the fully plastic range[J]. Computer Methods in Applied Mechanics and Engineering, 1974, 4(2): 153-177.

[5]
MARIMUTHU R, RAO B N. Development of efficient finite elements for structural integrity analysis of solid rocket motor propellant grains[J]. International Journal of Pressure Vessels and Piping, 2013, 111: 131-145.

[6]
田四朋, 雷勇军, 李道奎, 等. 基于Herrmann变分原理的三维粘弹性增量有限元法及其应用[J]. 工程力学, 2007, 24(7):28-32.

[7]
宋天霞, 邹时智, 杨文兵, 等. 非线性结构有限元计算[M]. 武汉: 华中理工大学出版社, 1996.

[8]
何志勇, 宋少伟, 邓长华, 等. 瞬态时域数据合成冲击响应谱算法研究[J]. 火箭推进, 2013, 39(5):55-59.

[9]
廖日东, 赵哲, 何昆, 等. 火箭发动机氢循环预冷阀旁通悬臂结构随机振动响应分析[J]. 强度与环境, 2013, 40(2):1-6.

[10]
张海军. 导弹垂直发射动载荷分析及计算软件开发[D]. 南京: 南京航空航天大学, 2010.

Options
Outlines

/

〈 〉

[an error occurred while processing this directive]