Results 201 to 210 of about 61,445 (265)
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Fixed-Time Actuator Fault Accommodation Applied to Hypersonic Gliding Vehicles
IEEE Transactions on Automation Science and Engineering, 2021This article presents a fixed-time accommodation strategy of actuator faults for hypersonic gliding vehicles (HGVs). The approach against actuator faults is incorporated by sliding mode control (SMC), bilimit homogeneity, and adaptive techniques, with ...
Xiang Yu, Peng Li, Youmin Zhang
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Soviet Physics Uspekhi, 1970
The fundamental results of recent research on the propagation of elastic microwaves (hypersonic waves) in crystals of various types are considered. The procedure for experiments with hypersonic waves is briefly described. The characteristics of the propagation of elastic waves in crystals (polarization, velocity, energy flux) and methods of their ...
Vladislav V Lemanov, G A Smolenskiĭ
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The fundamental results of recent research on the propagation of elastic microwaves (hypersonic waves) in crystals of various types are considered. The procedure for experiments with hypersonic waves is briefly described. The characteristics of the propagation of elastic waves in crystals (polarization, velocity, energy flux) and methods of their ...
Vladislav V Lemanov, G A Smolenskiĭ
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Journal of the Aerospace Sciences, 1959
An extension of classical hypersonic similitude is developed which takes into account the interaction effect of the displacement thickness of the boundary layer. A basic result of this viscous similitude is that the total drag including frictional drag obe}^s the classical similarity law for the pressure drag. Additional similarity conditions governing
Hayes, Wallace D., Probstein, Ronald F.
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An extension of classical hypersonic similitude is developed which takes into account the interaction effect of the displacement thickness of the boundary layer. A basic result of this viscous similitude is that the total drag including frictional drag obe}^s the classical similarity law for the pressure drag. Additional similarity conditions governing
Hayes, Wallace D., Probstein, Ronald F.
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The International Journal of Electrical Engineering & Education, 2020
A strategy of intercepting the near-space hypersonic aircraft is proposed, which is based on infrared window guidance, change the guidance law from side window constraint to the fixed lead angle, the sliding mode variable structure guidance law with ...
Qingxiang Zhong +3 more
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A strategy of intercepting the near-space hypersonic aircraft is proposed, which is based on infrared window guidance, change the guidance law from side window constraint to the fixed lead angle, the sliding mode variable structure guidance law with ...
Qingxiang Zhong +3 more
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Predicting Hypersonic Glide Vehicle Behavior With Stochastic Grammars
IEEE Transactions on Aerospace and Electronic SystemsHypersonic glide vehicles are a new class of vehicles that fly at hypersonic speeds and have high maneuverability. These fast-moving targets exhibit different flight characteristics compared to conventional vehicles, so traditional tracking and defense ...
Emily R. Bartusiak +4 more
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IEEE Transactions on Cybernetics, 2019
This paper investigates a fault-tolerant control of the hypersonic flight vehicle using back-stepping and composite learning. With consideration of angle of attack (AOA) constraint caused by scramjet, the control laws are designed based on barrier ...
B. Xu, Zhong-ke Shi, F. Sun, Wei He
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This paper investigates a fault-tolerant control of the hypersonic flight vehicle using back-stepping and composite learning. With consideration of angle of attack (AOA) constraint caused by scramjet, the control laws are designed based on barrier ...
B. Xu, Zhong-ke Shi, F. Sun, Wei He
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IEEE transactions on industrial electronics (1982. Print), 2019
This paper is concerned with reliable fuzzy tracking control for a near-space hypersonic vehicle (NSHV) subject to aperiodic measurement information and stochastic actuator failures. The NSHV dynamics is approximated by the Takagi–Sugeno fuzzy models and
Yue-ying Wang +2 more
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This paper is concerned with reliable fuzzy tracking control for a near-space hypersonic vehicle (NSHV) subject to aperiodic measurement information and stochastic actuator failures. The NSHV dynamics is approximated by the Takagi–Sugeno fuzzy models and
Yue-ying Wang +2 more
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Turbulence in a hypersonic compression ramp flow
Physical Review Fluids, 2021Using direct numerical simulation, the shock wave--turbulent boundary layer interaction (STBLI) generated by a compression ramp in Mach 7 flow is investigated. The behavior of turbulence in hypersonic STBLI has not been investigated as extensively in the
S. Priebe, M. Martín
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IEEE Transactions on Antennas and Propagation, 2021
A new electromagnetic (EM) calculation model, the inhomogeneity zonal medium model (IZMM) (based on the physical optics (PO) method), is proposed to calculate and analyze the EM scattering characteristics of hypersonic vehicle covered with a plasma ...
Zheng Bian +3 more
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A new electromagnetic (EM) calculation model, the inhomogeneity zonal medium model (IZMM) (based on the physical optics (PO) method), is proposed to calculate and analyze the EM scattering characteristics of hypersonic vehicle covered with a plasma ...
Zheng Bian +3 more
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Robust Tracking for Hypersonic Reentry Vehicles via Disturbance Estimation-Triggered Control
IEEE Transactions on Aerospace and Electronic Systems, 2020This note presents a novel control framework based on disturbance estimation information to exploit the potential performance improvement. Disturbances in the hypersonic reentry vehicles are revisited, and a disturbance effect indicator (DEI) is defined ...
Zongyi Guo +3 more
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