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Review on heat-to-power conversion technologies for hypersonic vehicles

Chinese Journal of Aeronautics 2024年第5期37卷 148-179页

作者： Yinke QI Xiaofeng MA Peixue JIANG Yinhai ZHU Key Laboratory for Thermal Science and Power Engineering of Ministry of Education Department of Energy and Power EngineeringTsinghua UniversityBeijing 100084China Beijing Key Laboratory of CO_(2)Utilization and Reduction Technology Department of Energy and Power EngineeringTsinghua UniversityBeijing 100084China

hypersonic vehicles have enormous military and economic value,while their power and thermal protection demands will increase substantially with the rise in Mach number and *** the tremendous high-quality heat on the vehicle surface and engine wall into electrical energy through heat-to-power technologies will not only play a role in thermal protection,but also supply power for the *** paper provides a comprehensive review of heat-to-power conversion technologies on hypersonic vehicles,including the indirect conversion of Brayton and Rankine cycles,direct conversion of thermoelectric materials,and combined *** the open Brayton cycle with hydrocarbon fuel as the working fluid,the Power-to-Weight Ratio(PWR)can achieve the highest,at around 1.8,due to the high PWR of the hydrocarbon fuel turbine and the few components of the ***,its work capacity is limited by the flow rate of the supplied *** closed Brayton cycle can maintain a relatively high PWR,ranging from 0.2 to 0.8,while achieving relatively high output power and conversion *** Rankine cycle has a higher PWR,its range is close to that of the closed Brayton cycle,peaking at about *** thermoelectric materials technology has a small power generation level,making it more suitable for scenarios with low power *** review provides a basis for selecting and developing heat-to-power conversion technologies on hypersonic vehicles.

关键词： hypersonic vehicles Heat-to-power conversion Brayton cycle Rankine cycle Thermoelectric materials

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Cooperative game penetration guidance for multiple hypersonic vehicles under safety critical framework

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Chinese Journal of Aeronautics 2024年第1期37卷 247-255页

作者： Jieqing CHEN Ruisheng SUN Yu LU School of Energy and Power Engineering Nanjing University of Science and TechnologyNanjing 210094China

The rapid development of the anti-missile weapon technology brings new challenges to the cooperative penetration strategy solution and the guidance law design for hypersonic vehicles(HVs).This paper studies the coordinated game penetration guidance problem for multiple hypersonic vehicles faced with space threat areas.A scheme for seeking cooperative game penetration guidance strategy under safety critical control framework is *** this scheme,a multiHV cooperative game model is proposed in a minimum optimization form which can simplify the solving process and accelerate the computing ***,a second-order control barrier function is developed to transform the implicit nonlinear constraints of the proposed model into linear *** order to obtain better performance of guidance strategy,a composite guidance law under the safety critical control framework is presented to allocate guidance strategies appropriately in the whole *** is shown that the proposed scheme can guarantee successful penetration while avoiding threat ***,a comparative simulation with a two-on-three game is conducted to verify the effectiveness of the proposed method.

关键词： hypersonic vehicles Safety critical control Penetration game Space constraints Cooperative guidance

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Current status and prospects of terminal guidance laws for intercepting hypersonic vehicles in near space:a review

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2023年第5期24卷 387-403页

作者： Shuangxi LIU Binbin YAN Wei HUANG Xu ZHANG Jie YAN Unmanned System Research Institute Northwestern Polytechnical UniversityXi'an 710072China School of Astronautics Northwestern Polytechnical UniversityXi'an 710072China Science and Technology on Scramjet Laboratory School of Aerospace Science and EngineeringNational University of Defense TechnologyChangsha 410073China

The unique performance advantages of hypersonic vehicles represent a critical challenge for existing defense *** facilitate defensive operations against hypersonic vehicles in near space,this paper systematically discusses both the advantages of these vehicles and the difficulties in intercepting *** on the state-of-the-art terminal guidance laws for intercepting hypersonic vehicles in near space,we examine research progress in the area of single-and multi-interceptor cooperative guidance laws and summarize their advantages and *** also highlight future research directions for developing an effective terminal guidance law for multi-interceptor cooperative interception of hypersonic vehicles,based on four aspects:the information domain,space domain,physical domain,and effect-cost *** findings provide a reference for further research into near-space interceptor terminal guidance technologies.

关键词： hypersonic vehicles Guidance law Cooperative guidance Near space

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Evasion guidance algorithms for air-breathing hypersonic vehicles in three-player pursuit-evasion games

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Chinese Journal of Aeronautics 2020年第12期33卷 3423-3436页

作者： Tian YAN Yuanli CAI Bin XU School of Electronic and Information Engineering Xi'an Jiaotong UniversityXi'an 710049China School of Automation Northwestern Polytechnical UniversityXi'an 710072China

In practical combat scenario,the cooperative intercept strategies are often carefully designed,and it is challenging for the hypersonic vehicles to achieve successful *** on the analysis,it can be found that if several Successive Pursuers come from the Same Direction(SPSD)and flight with a proper spacing,the evasion difficulty may increase *** address this problem,we focus on the evasion guidance strategy design for the Air-breathing hypersonic vehicles(AHVs)under the SPSD combat *** order to avoid the induced influence on the scramjet,altitude and speed of the vehicle,the lateral maneuver and evasion are *** guarantee the remnant maneuver ability,the concept of specified miss distance is introduced and utilized to generate the guidance command for the *** the framework of constrained optimal control,the analytical expression of the evasion command is derived,and the constraints of the overload can be ensured to be never *** fact,by analyzing the spacing of the pursers,it can be classified whether the cooperative pursuit is *** the coordination-unformed multiple pursers,the evasion can be achieved lightly by the proposed *** the coordination is formed,the proposed method will generate a large reverse direction maneuver,and the successful evasion can be maintained as a *** performance of the proposed algorithms is tested in numerical simulations.

关键词： Differential game theory Game theory hypersonic vehicles Optimal control Pursuit-evasion strategy

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A reduced order aerothermodynamic modeling framework for hypersonic vehicles based on surrogate and POD

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Chinese Journal of Aeronautics 2015年第5期28卷 1328-1342页

作者： Chen Xin Liu Li Long Teng Yue Zhenjiang School of Aerospace Engineering Beijing Institute of Technology Key Laboratory of Dynamics and Control of Flight Vehicle Ministry of Education Beijing Institute of Technology

Aerothermoelasticity is one of the key technologies for hypersonic vehicles. Accurate and efficient computation of the aerothermodynamics is one of the primary challenges for hypersonic aerothermoelastic analysis. Aimed at solving the shortcomings of engineering calculation, compu- tation fluid dynamics （CFD） and experimental investigation, a reduced order modeling （ROM） framework for aerothermodynamics based on CFD predictions using an enhanced algorithm of fast maximin Latin hypercube design is developed. Both proper orthogonal decomposition （POD） and surrogate are considered and compared to construct ROMs. Two surrogate approaches named Kriging and optimized radial basis function （ORBF） are utilized to construct ROMs. Furthermore, an enhanced algorithm of fast maximin Latin hypercube design is proposed, which proves to be helpful to improve the precisions of ROMs. Test results for the three-dimensional aerothermody- namic over a hypersonic surface indicate that： the ROMs precision based on Kriging is better than that by ORBF, ROMs based on Kriging are marginally more accurate than ROMs based on POD- Kriging. In a word, the ROM framework for hypersonic aerothermodynamics has good precision and efficiency.

关键词： hypersonic vehicles Aerothermodynamic Reduced order model(ROM) Surrogate Proper orthogonaldecomposition (POD)

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Continuous Sliding Mode Controller with Disturbance Observer for hypersonic vehicles

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IEEE/CAA Journal of Automatica Sinica 2015年第1期2卷 45-55页

作者： Chaoxu Mu Qun Zong Bailing Tian Wei Xu the Department of Electrical Engineering and Automation Tianjin University the School of Electrical and Electronic Engineering Huazhong University of Science and Technology

In this paper, a continuous sliding mode controller with disturbance observer is proposed for the tracking control of hypersonic vehicles to suppress the chattering. The finite time disturbance observer is involved to make that the continuous sliding mode controller has the property of disturbance rejection. Due to continuous terms replacing the discontinuous term of traditional sliding mode control, switching modes of velocity and altitude firstly arrive at small regions with respect to disturbance observation errors. Switching modes keep zero and velocity and altitude asymptotically converge to their reference commands after disturbance observation errors disappear. Simulation results have proved the proposed method can guarantee the tracking of velocity and altitude with continuous sliding mode control laws, and also has the fast convergence rate and robustness. © 2014 Chinese Association of Automation.

关键词： Airships Altitude control Controllers Disturbance rejection Errors hypersonic aerodynamics hypersonic vehicles Robustness (control systems) vehicles

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Overview of control-centric integrated design for hypersonic vehicles

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Astrodynamics 2018年第4期2卷 307-324页

作者： Yanbin Liu Boyi Chen Yuhui Li Haidong Shen College of Astronautics Nanjing University of Aeronautics and AstronauticsNanjing210016China

hypersonic vehicles(HSVs)exhibit significant advantages over other vehicles,including the wide range of velocity and large airspace types,and these features have contributed to the rapid development of HSVs in the last 20 ***,hypersonic technologies have become a multidisciplinary research topic in the fields of aerodynamics,propulsion,structure,material,and *** types of re-entry gliding,air-breathing cruise,and aerospace vehicles have been designed to realize ambitious tasks,which in turn influenced the technological advancements and process change in the *** paper summarizes the control-oriented integrated design of ***,the status of current research on the distinct characteristics and technique issues of HSVs is ***,the progresses made on complex modeling,guidance and control,and trajectory optimization are elaborated to exhibit the significant research interest in hypersonic *** control-integrated design of HSVs is emphasized to solve the multidisciplinary design problems associated with the model and its control and *** strategies regarding the multidisciplinary optimization design are also proposed to solve the integrated design ***,suggestions are provided for the control-oriented integrated design of HSVs.

关键词： hypersonic vehicles integrated design flight control

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Fault-tolerant control with mixed aerodynamic surfaces and RCS jets for hypersonic reentry vehicles

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Chinese Journal of Aeronautics 2017年第2期30卷 780-795页

作者： He Jingjing Qi Ruiyun Jiang Bin Zhai Rongyu College of Automation Engineering Nanjing University of Aeronautics and Astronautics Nanjing 211106 China

This paper proposes a fault-tolerant strategy for hypersonic reentry vehicles with mixed aerodynamic surfaces and reaction control systems（RCS） under external disturbances and subject to actuator *** surfaces are treated as the primary actuator in normal situations,and they are driven by a continuous quadratic programming（QP） allocator to generate torque commanded by a nonlinear adaptive feedback control *** aerodynamic surfaces encounter faults,they may not be able to provide sufficient torque as commanded,and RCS jets are activated to augment the aerodynamic surfaces to compensate for insufficient *** loss of effectiveness and stuck faults are considered in this paper,and observers are designed to detect and identify the *** on the fault identification results,an RCS control allocator using integer linear programming（ILP） techniques is designed to determine the optimal combination of activated RCS *** treating the RCS control allocator as a quantization element,closed-loop stability with both continuous and quantized inputs is *** results verify the effectiveness of the proposed method.

关键词： Control allocation Fault-tolerant control hypersonic vehicles Quantized control Reaction control system(RCS)

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Cooperative guidance strategy for multiple hypersonic gliding vehicles system

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Chinese Journal of Aeronautics 2020年第3期33卷 990-1005页

作者： Jianglong YU Xiwang DONG Qingdong LI Zhang REN Jinhu LV School of Automation Science and Electrical Engineering Science and Technology on Aircraft Control LaboratoryBeihang UniversityBeijing 100083China Beijing Advanced Innovation Center for Big Data and Brain Computing Beihang UniversityBeijing 100083China Shananxi Key Laboratory of Integrated and Intelligent Navigation Xi’an 710068China

Cooperative guidance strategy for multiple hypersonic gliding vehicles system with flight constraints and cooperative constraints is *** paper mainly cares about the coordination of the entry glide flight phase and driving-down *** from the existing results,both the attack time and the attack angle constraints are considered ***, for the entry glide flight phase, a two-stage method is proposed to achieve the rapid cooperative trajectories planning, where the control signal corridors are designed based on the quasi-equilibrium gliding *** the first stage, the bank angle curve is optimized to achieve the attack angle *** the second stage, the angle of attack curve is optimized to achieve the attack time *** optimized parameters can be obtained by the secant ***, for the driving-down phase, the cooperative terminal guidance law is designed where the terminal attack time and attack angle are *** guidance law is then transformed into the bank angle and angle of attack *** cooperative guidance strategy is summarized as an ***, a numerical simulation example with three hypersonic gliding vehicles is provided for revealing the effectiveness of the acquired strategy and algorithm.

关键词： Attack angle constraints Attack time constraints Cooperative guidance Cooperative path planning Entry guidance hypersonic vehicles

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Robust Attitude Control for hypersonic vehicles with Coupling Analysis

Robust Attitude Control for Hypersonic Vehicles with Couplin...

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第三十九届中国控制会议

作者： Ruihao Cao Yong Xi Qinglei Hu Tuo Han School of Automation Science and Electrical Engineering Beihang University Shanghai Aerospace Control Technology Institute Beijing Advanced Innovation Center for Big-Data Based Precision Medicine Beihang University

The attitude control issue for hypersonic vehicles（HSV） with coupling analysis is presented in this paper. An auxiliary variable is introduced to identify the effects of coupling terms that are negative or beneficial for the attitude stabilization. To handle the environmental uncertainties and aerodynamic perturbations involved in the hypersonic vehicles flight control system,a modified gain adaptation strategy is presented to tackle these terms that are limited but with unknow bounds. Then, a robust control scheme containing the coupling effect identified terms is constructed to deal with the robustness and coupling issues. It is proved that the utilized control scheme can enforce the tracking errors to a small vicinity of the origin in finite time. Finally, numerical simulations are conducted to demonstrate the provided controller.

关键词： hypersonic vehicles Attitude tracking control Gain adaptation Robustness

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