TY - GEN
T1 - Study of Recoverable Liquid Launch Vehicle Stage Separation Based on Equivalent Model of Large-Amplitude Liquid Slosh
AU - Lu, Yu
AU - Yue, Baozeng
AU - Hao, Bailong
AU - Ma, Bole
N1 - Publisher Copyright:
© The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.
PY - 2024
Y1 - 2024
N2 - In the process of stage separation of recoverable liquid launch vehicles, due to the large amount of remaining fuel in the storage tanks, the impact of liquid sloshing on separation safety must be considered. Considering the simplicity of the calculation and the practicality of the operation, the moving pulsating ball equivalent model (MPBM) of large amplitude liquid sloshing is introduced into the calculation of stage separation of launch vehicles. Considering the scenario of liquid leaving the wall of tanks, improvements have been made to the existing MPBM. Then, all external forces and moments are applied to the rigid body of the stages to get the translation and rotation dynamic equations of the two stages respectively. Based on the relative position of the two stages, the geometric shape of the interstage section, and the geometric shape of the second stage engines, the minimum clearance during the separation process can be determined to determine whether the separation process is safe. Finally, a brief analysis of parameter sensitivity is conducted.
AB - In the process of stage separation of recoverable liquid launch vehicles, due to the large amount of remaining fuel in the storage tanks, the impact of liquid sloshing on separation safety must be considered. Considering the simplicity of the calculation and the practicality of the operation, the moving pulsating ball equivalent model (MPBM) of large amplitude liquid sloshing is introduced into the calculation of stage separation of launch vehicles. Considering the scenario of liquid leaving the wall of tanks, improvements have been made to the existing MPBM. Then, all external forces and moments are applied to the rigid body of the stages to get the translation and rotation dynamic equations of the two stages respectively. Based on the relative position of the two stages, the geometric shape of the interstage section, and the geometric shape of the second stage engines, the minimum clearance during the separation process can be determined to determine whether the separation process is safe. Finally, a brief analysis of parameter sensitivity is conducted.
KW - Large amplitude slosh
KW - Recoverable liquid launch vehicle
KW - Stage separation
KW - The moving pulsating ball model (MPBM)
UR - http://www.scopus.com/inward/record.url?scp=85197338422&partnerID=8YFLogxK
U2 - 10.1007/978-981-99-8048-2_270
DO - 10.1007/978-981-99-8048-2_270
M3 - Conference contribution
AN - SCOPUS:85197338422
SN - 9789819980475
T3 - Lecture Notes in Mechanical Engineering
SP - 3875
EP - 3889
BT - Proceedings of the 2nd International Conference on Mechanical System Dynamics - ICMSD 2023
A2 - Rui, Xiaoting
A2 - Liu, Caishan
PB - Springer Science and Business Media Deutschland GmbH
T2 - 2nd International Conference of Mechanical System Dynamics, ICMSD 2023
Y2 - 1 September 2023 through 5 September 2023
ER -