Fluid-thermal modeling of hypersonic vehicles via a gas-kinetic BGK scheme-based integrated algorithm

Zhou, Di; Lu, Zhiliang; Guo, T.F.; Shen, Ennan; Wu, Jiangpeng; Chen, Guoping

doi:10.1016/j.ast.2020.105748

Cited by 3 publications

(1 citation statement)

References 32 publications

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“…13 The most outstanding feature of ADRC is that all the uncertain factors acting on the controlled object are reduced to the disturbance until the disturbance, and the input and output data of the object are used to estimate and directly compensate. [14][15][16] Since the unknown disturbance compensation is real-time, the ADRC has strong robustness. When the plant is in a changing environment, real-time disturbance compensation makes the ADRC less affected by the environment.…”

Section: Disturbance Observer Designmentioning

confidence: 99%

RETRACTED: Adaptive attitude control and the modeling of hypersonic vehicles with mismatched disturbances

Zhong

Zhang

Fan

et al. 2021

International Journal of Electrical Engineering & Education

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Hypersonic vehicles often use the aerodynamic configuration and light materials such as lifting body and waverider, which leads to the unmatched uncertain control problems caused by strong coupling characteristics and interference during reentry. To solve these problems, firstly, this paper analyzes the key factors and uncertainties that affect the attitude motion of hypersonic vehicle. Secondly, it studies the modeling and verification of rigid body and elastic body of hypersonic vehicle, establishes the error model with disturbance observation compensation, and proposes a new attitude control scheme of hypersonic vehicle, which realizes the stable tracking of attitude angle and improves the uncertainty of key parameters of the system. The simulation results show that the performance index meets the requirements and has good robust performance in the presence of unknown disturbance.

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Section: Disturbance Observer Designmentioning

confidence: 99%

RETRACTED: Adaptive attitude control and the modeling of hypersonic vehicles with mismatched disturbances

Zhong

Zhang

Fan

et al. 2021

International Journal of Electrical Engineering & Education

View full text Add to dashboard Cite

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CFD Simulation Strategy for Hypersonic Aerodynamic Heating around a Blunt Biconic

Chen

2021

International Journal of Aerospace Engineering

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The design of the thermal protection system requires high-precision and high-reliability CFD simulation for validation. To accurately predict the hypersonic aerodynamic heating, an overall simulation strategy based on mutual selection is proposed. Foremost, the grid criterion based on the wall cell Reynolds number is developed. Subsequently, the dependence of the turbulence model and the discretization scheme is considered. It is suggested that the appropriate value of wall cell Reynolds number is 1 through careful comparison between one another and with the available experimental data. The excessive number of cells is not recommended due to time-consuming computation. It can be seen from the results that the combination of the AUSM+ discretization scheme and the Spalart-Allmaras turbulence model has the highest accuracy. In this work, the heat flux error of the stagnation point is within 1%, and the overall average relative error is within 10%.

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\({\mathcal{L}_1}\) Adaptive Loss Fault Tolerance Control of Unmanned Hypersonic Aircraft with Elasticity

Shi

2021

Aerospace

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This paper investigates the fault tolerance control of hypersonic aircrafts with L1 adaptive control method in the presence of loss of actuator effectiveness fault. The hypersonic model considers the uncertainties caused by the features of nonlinearities and couplings. Elasticity is taken into account in hypersonic vehicle modeling which makes the model more accurate. A velocity L1 adaptive controller and an altitude L1 adaptive controller are designed to control flexible hypersonic vehicle model with actuator loss fault. A PID controller is designed as well for comparison. Finally, the simulation results are used to analyze the effectiveness of the controller. Compared to the results of PID controller, L1 controllers have better performance.

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Fluid-thermal modeling of hypersonic vehicles via a gas-kinetic BGK scheme-based integrated algorithm

Cited by 3 publications

References 32 publications

RETRACTED: Adaptive attitude control and the modeling of hypersonic vehicles with mismatched disturbances

RETRACTED: Adaptive attitude control and the modeling of hypersonic vehicles with mismatched disturbances

CFD Simulation Strategy for Hypersonic Aerodynamic Heating around a Blunt Biconic

\({\mathcal{L}_1}\) Adaptive Loss Fault Tolerance Control of Unmanned Hypersonic Aircraft with Elasticity

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