Results 191 to 200 of about 61,445 (265)

An experimental investigation of heat transfer to cones in rarified hypersonic flow.

, 1971
Carl T. Berry
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Robust Unscented Kalman Filter-Based Decentralized Multisensor Information Fusion for INS/GNSS/CNS Integration in Hypersonic Vehicle Navigation

IEEE Transactions on Instrumentation and Measurement, 2023
Inertial navigation system/global navigation satellite system/celestial navigation system (INS/GNSS/CNS) integration is a favorable navigation mode for hypersonic vehicles.
Gaoge Hu, Linyan Xu, Bingbing Gao, Lubin Chang, Y. Zhong   +4 more
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Composite Observer-Based Optimal Attitude-Tracking Control With Reinforcement Learning for Hypersonic Vehicles

IEEE Transactions on Cybernetics, 2022
This article proposes an observer-based reinforcement learning (RL) control approach to address the optimal attitude-tracking problem and application for hypersonic vehicles in the reentry phase.
Shangwei Zhao, Jingcheng Wang, Haotian Xu, Bohui Wang   +3 more
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Wall-cooling effects on pressure fluctuations in compressible turbulent boundary layers from subsonic to hypersonic regimes

Journal of Fluid Mechanics, 2022
Pressure fluctuations play an essential role in the transport of turbulent kinetic energy and vibrational loading. This study focuses on examining the effect of wall cooling on pressure fluctuations in compressible turbulent boundary layers by high ...
Peng-Jun-Yi Zhang, Z. Wan, Nan-Sheng Liu, De-Jun Sun, Xi-yun Lu   +4 more
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Real-Time Reentry Trajectory Planning of Hypersonic Vehicles: A Two-Step Strategy Incorporating Fuzzy Multiobjective Transcription and Deep Neural Network

IEEE transactions on industrial electronics (1982. Print), 2020
A two-step strategy is developed for real-time trajectory planning of a hypersonic vehicle (HV) in the reentry phase. The first step generates the optimal trajectory for the HV using a recently proposed fuzzy multiobjective transcription method.
Runqi Chai, A. Tsourdos, A. Savvaris, Yuanqing Xia, S. Chai   +4 more
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Fixed-Time Sliding Mode Disturbance Observer-Based Nonsmooth Backstepping Control for Hypersonic Vehicles

IEEE Transactions on Systems, Man, and Cybernetics: Systems, 2020
This paper presents a novel fixed-time sliding mode disturbance observer (SMDO)-based robust backstepping cruise tracking control scheme with closed-loop finite-time convergence for flexible air-breathing hypersonic vehicles (FAHVs).
Jinlin Sun, J. Yi, Z. Pu, Xiang-min Tan
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Internal Hypersonic Flow

Journal of Applied Mechanics, 1974
Apart from method of characteristic calculations, there has been little analytical consideration of high-speed internal flows where transverse curvature and/or viscous-inviscid interaction are important. Molder [1] has carried out a numerical computation for internal conical flow using the inviscid Taylor-Macoll equations; however, a singular ray is ...
Lin, T. C., Rubin, S. G.
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