Influence of transverse variable acceleration on design of insulation structure for solid rocket motor

Di SUN; Yongzhou LI; Xiaowei LIU; Xiaosong GAN

doi:10.13224/j.cnki.jasp.20200435

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Influence of transverse variable acceleration on design of insulation structure for solid rocket motor

Rocket Engine | 更新时间：2025-04-07

- Influence of transverse variable acceleration on design of insulation structure for solid rocket motor
- Journal of Aerospace Power Vol. 36, Issue 11, Pages: 2458-2464(2021)
- 作者机构：
  
  1.南昌航空大学飞行器工程学院，南昌 330063
  2.中国航天科技集团有限公司西安航天动力技术研究所，西安 710025
  3.华中科技大学航空航天学院，武汉 430074
- 作者简介：
- 基金信息：
- DOI：10.13224/j.cnki.jasp.20200435
  CLC：
- 稿件说明：
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Di SUN, Yongzhou LI, Xiaowei LIU, et al. Influence of transverse variable acceleration on design of insulation structure for solid rocket motor[J]. Journal of Aerospace Power, 2021, 36(11): 2458-2464.
DOI：

Di SUN, Yongzhou LI, Xiaowei LIU, et al. Influence of transverse variable acceleration on design of insulation structure for solid rocket motor[J]. Journal of Aerospace Power, 2021, 36(11): 2458-2464. DOI： 10.13224/j.cnki.jasp.20200435.

摘要

针对新一代防空导弹高机动作战特点，研究了复杂横向变过载对固体火箭发动机绝热结构工程设计的影响。同时考虑过载值和过载角度的瞬时变化，对发动机绝热层进行网格划分，并对烧蚀厚度进行编程计算，进而按照安全裕度设计准则得到不同位置的绝热层设计厚度。与传统设计结果相比，考虑横向过载的变化可以显著减少了发动机的结构质量，提高了发动机总体性能，绝热质量减小了53.7%，总冲提高了6.84%。

Abstract

Targeting the high⁃mobility characteristics of the new generation antiaircraft missiles，the influence of the complex transverse variable acceleration trajectory on the engineering design for the solid rocket motor insulation structure was studied.It considered the instantaneous changes of acceleration value and angle，meshed the insulation structure，and calculated its ablation thickness by programming，and then the design thickness of the heat insulation layer at different positions was obtained according to the safety margin design criterion.Compared with traditional design results，considering the change of transverse acceleration significantly reduced the structural mass of the motor，and improved the overall performance；the heat insulation mass of the motor was reduced by 53.7%，and the total impulse was increased by 6.84%.

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references

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