TY - GEN
T1 - Rapid Prediction Method of Impact Point for Spin-Inertial Reentry Under the Boundary-Layer Transition
AU - He, Shaoyue
AU - Ma, Qixin
AU - Li, Qiang
AU - Wen, Qiuqiu
AU - Peng, Fei
N1 - Publisher Copyright:
© The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2025.
PY - 2025
Y1 - 2025
N2 - In the reentry process, the boundary-layer transition (BLT) is a common phenomenon which can cause aerodynamic interference. BLT also leads to attitude oscillations, resulting in positional deviations of the impact point. To estimate the deviation early and make corrections accordingly, in this paper, the Rapid prediction Method for Impact Point of Spin-Inertial Reentry (RPM) is proposed. Firstly, the additional trim angle-of-attack is established to simulate the aerodynamic interference during the reentry process. An equivalent model of BLT interference is established with two variables -transition force and the transition moment. Then, in order to obtain the transfer relationship from external inputs to the velocity angle, the equivalent model is incorporated into the state equations. By simplifying transfer functions, the RPM under the influence of BLT interference is developed. Finally, compared with the results of traditional six-degree-of-freedom simulation calculations, the RPM can accurately calculate the impact point with fewer steps.
AB - In the reentry process, the boundary-layer transition (BLT) is a common phenomenon which can cause aerodynamic interference. BLT also leads to attitude oscillations, resulting in positional deviations of the impact point. To estimate the deviation early and make corrections accordingly, in this paper, the Rapid prediction Method for Impact Point of Spin-Inertial Reentry (RPM) is proposed. Firstly, the additional trim angle-of-attack is established to simulate the aerodynamic interference during the reentry process. An equivalent model of BLT interference is established with two variables -transition force and the transition moment. Then, in order to obtain the transfer relationship from external inputs to the velocity angle, the equivalent model is incorporated into the state equations. By simplifying transfer functions, the RPM under the influence of BLT interference is developed. Finally, compared with the results of traditional six-degree-of-freedom simulation calculations, the RPM can accurately calculate the impact point with fewer steps.
KW - Boundary Layer Transition
KW - Impact point prediction
KW - Rapid Calculation
KW - Spin-Inertial Reentry Vehicle
UR - https://www.scopus.com/pages/publications/86000451251
U2 - 10.1007/978-981-96-2252-8_59
DO - 10.1007/978-981-96-2252-8_59
M3 - Conference contribution
AN - SCOPUS:86000451251
SN - 9789819622511
T3 - Lecture Notes in Electrical Engineering
SP - 596
EP - 606
BT - Advances in Guidance, Navigation and Control - Proceedings of 2024 International Conference on Guidance, Navigation and Control
A2 - Yan, Liang
A2 - Duan, Haibin
A2 - Deng, Yimin
PB - Springer Science and Business Media Deutschland GmbH
T2 - International Conference on Guidance, Navigation and Control, ICGNC 2024
Y2 - 9 August 2024 through 11 August 2024
ER -