Dynamic Response of Liquid Rocket under TAFT Seismic Wave
DOI:
https://doi.org/10.54097/ije.v3i2.013Keywords:
TAFT Seismic Wave, Liquid Rocket, Dynamic Response, Displacement, StressAbstract
This paper adopts the time course method of ANSYS software to analyze the dynamic response of liquid rocket under the action of TAFT seismic wave, and calculates the displacement and stress before and after the injection of liquid rocket. The results show that under the action of TAFT seismic wave, the liquid rocket swings along the direction of seismic wave action before and after filling. With the increase of the height, the maximum displacement appears in the top of the rocket, and the maximum stress appears in the tail support part. The maximum swing amplitude and the maximum stress are greatly increased than before the filling, especially the swing is divergent, there is a possibility of rocket dumping and structural strength damage.
Downloads
References
Sun Dan, MAO Yuming, Di Wenbin, etc. Development status and prospect of structural dynamics modeling technology of launch vehicle [J]. China Aerospace, 2022, No.9:26-30.
Wang Jianmin, Wu Yanhong, Zhang Zhong.3 d modeling technology for the full-arrow movement characteristics of the launch vehicle [J]. Science of China, 2014,44 (1): 50-61.
Zhou Sida, Liu Li. Overview of flow-solid coupling analysis method of carrier rocket tank [J]. Strength and Environment, 2010,37 (3): 52-63.
Zhu Changfan, Tang Guoan, Zhang Meiyan. A comparison algorithm for liquid-solid coupling analysis of rocket propellant shaking [J]. Journal of kinetics and Control, 2014,12 (3): 239-242.
Liu Caizhi, Tang Guojin. Seismic response analysis and shock absorption design of a certain type of launch vehicle [J]. Journal of National University of Defense Technology, 2014,36 (4): 27-32.
Fang Hao, Wu Hao, Wang Duguo. Summary of research on seismic safety of reservoir tanks [J]. Earthquake defense technology, 2012,7 (2): 144-151.
Zhang Rulin, Cheng Xudong, Wang Huaifeng. Analysis of the influence of vertical earthquake action on the seismic response of the reservoir [J]. Journal of Earthquake Engineering, 2017,39 (4): 592-599.
Pan Zhongwen, Xing Yufeng, Zhu Liwen. Liquid propellant simulation technology in the modeling of launch vehicle dynamics [J]. Chinese Science, 2010,40 (8): 920-928.
