Damage analysis of explosion blast wave to rocket structure and payload

4th International Conference on Advances in Energy Resources and Environment Engineering

能源学;生态环境科学

Wang, Yan^1 ; Wang, Hua^2 ; Cui, Cunyan^2 ; Zhao, Beilei^1 ; Xin, Tengda^1

Graduate School, Aerospace Engineering University, Beijing

101416, China^1

Department of Space Science and Technology, Aerospace Engineering University, Beijing

101416, China^2

关键词: Damage analysis;    Damage mechanism;    Peak overpressure;    Positive pressure time;    Rocket bodies;    Rocket structures;    Safety protection;    Specific impulse;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/237/3/032060/pdf
DOI  :  10.1088/1755-1315/237/3/032060

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

The explosion of rocket poses a serious threat to the payload in it. LS-DYNA software is used to analyze co-bottom explosion of the third stage in flight. The damage mechanism of explosion to the structure of the rocket body and the storage tank is mainly studied, and effect of shock peak overpressure, positive pressure time and specific impulse on the payload is evaluated. The results show that: The model can reflect the destruction mechanism of rocket structure explosion. Secondly, the closer the payload is to the explosive core, the more destructive the blast wave will be to it. What's more, overpressure value is much larger than the upper limit of overpressure criterion, which will cause serious damage to the payload. The results may provide a reference for the safety protection design of the payload in the rocket.