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Design and verification of a transfer path optimization method for an aircraft on the aircraft carrier flight deck Research Articles

Weichao Si, Tao Sun, Chao Song, Jie Zhang,luckydevilsi@163.com,luckydevilhan@163.com,sxwxc.1984@163.com,zhangjie9886@126.com

Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 9,   Pages 1221-1233 doi: 10.1631/FITEE.2000251

Abstract: This paper studies the problem for safe transfer of an aircraft on the aircraft carrier under a poor visibility condition or at night. First, we analyze the problem for carrier-based aircraft on the , and define the objective to be optimized and the constraints to be met. Second, to solve this problem, the mathematical support models for the , entity, entity extension, entity posture, entity conflict detection, and path smoothing are established, as they provide the necessary basis for of the aircraft on the aircraft carrier. Third, to enable automatic , we design a multi-habitat parallel chaos algorithm (called KCMPSO), and use it as the optimization method for . Finally, we take the Kuznetsov aircraft carrier as a verification example, and conduct simulations. The simulation results show that compared with particle swarm optimization, this method can solve the problem for an aircraft on the aircraft carrier better.

Keywords： 舰载机；飞行甲板；转运路径规划；KCMPSO算法；方法设计与验证    

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The Application of Comprehensive Service Flying Hour to the Failure Analysis of Corrosion Fatigue Life of Aircraft Components

Lin Ming,Jin Ping,Sun Mingli

Strategic Study of CAE 2001, Volume 3, Issue 3,   Pages 65-67

Abstract:

The aircraft service air-ground-air environmental spectrum consists of two parts： flying environmental spectrum and ground parking environmental spectrum. To most military aircrafts, the ground parking time accounts for more than 90% of the aircraft service life. The service life of aircraft is greatly influenced by the severe environment of naval aircraft where there are 3-highs： high temperature, high humidity and high salt-fog corrosion. The service life of aircraft must be determined based on the environmental spectrum of aircraft service, in which factors such as flying time, calendar time and comprehensive service flying time are taken into account. As a typical example, based on the analysis of the axle neck crack of axial hinge in certain type of naval helicopter by utilizing an analytical method of structural fatigue, the overhaul life of the hinge is discussed in respect of flying time, calendar time and comprehensive service flying time.

Keywords： corrosion     corrosion fatigue     flying time     calendar time     comprehensive service flying time    

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Robot Pilot: A New Autonomous System Toward Flying Manned Aerial Vehicles Article

Zibo Jin, Daochun Li, Jinwu Xiang

Engineering 2023, Volume 27, Issue 8,   Pages 242-253 doi: 10.1016/j.eng.2022.10.018

Abstract:

The robot pilot is a new concept of a robot system that pilots a manned aircraft, thereby forming a new type of unmanned aircraft system (UAS) that makes full use of the platform maturity, load capacity, and airworthiness of existing manned aircraft while greatly expanding the operation and application fields of UASs. In this research, the implementation and advantages of the robot pilot concept are discussed in
detail, and a helicopter robot pilot is proposed to fly manned helicopters. The robot manipulators are designed according to the handling characteristics of the helicopter-controlling mechanism. Based on a kinematic analysis of the robot manipulators, a direct-driving method is established for the robot flight controller to reduce the time delay and control error of the robot servo process. A supporting ground station
is built to realize different flight modes and the functional integration of the robot pilot. Finally, a prototype of the helicopter robot pilot is processed and installed in a helicopter to carry out flight tests. The test results show that the robot pilot can independently fly the helicopter to realize forward flight, backward flight, side flight, and turning flight, which verifies the effectiveness of the helicopter robot pilot.

Keywords： Helicopter     Robot pilot     Flight control     Unmanned system    

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Study on modeling and simulation analysis for tailless configured V/STOL

Fan Yong,Zhu Jihong,Meng Xianyu,Liu Kai,Yang Xili

Strategic Study of CAE 2011, Volume 13, Issue 3,   Pages 107-112

Abstract:

The mathematical model was studied by mechanical analysis and CFD (computing fluid dynamics) computation. Besides, an intelligent adaptive based control law was proposed and the optimization approach is employed to solve the constrained control allocation problem. The results show good closed loop performance and validate the intelligent optimization approach of constrained control allocation for flight control.

Keywords： tailless configured aerial vehicle     V/STOL     dynamic modeling     flight control    

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Lateral Vibration Analyses of Flying Vehicle under Thrust and Drag

Song Jian

Strategic Study of CAE 2000, Volume 2, Issue 10,   Pages 63-72

Abstract:

In this paper, the influence of thrust and air drag on rocket lateral vibration is studied, and the frequency reduction under the thrust and drag is analyzed. The formulas for evaluation of the changes of frequencies and vibration modes are obtained. The equations of transverse movement when nozzle connected rigidly with rocket and related boundary conditions form the basis for analyses. The conclusions obtained are applicable for active accelerating and passive decelerating parts of trajectory as well as the cruise flight when thrust and drag are balanced. The analyses show that for small thrust and small axial overload, the discrepancy resulted from different calculation methods is not big, whereas for the heavy overloaded case a more accurate solution is extremely necessary.

Keywords： aircraft     rocket     lateral vibration     thrust and drag     vibration mode and frequency    

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Application of phase change materials to thermal controlsystems for hypersonic vehicles

Wang Peiguang,Liu Yongji,Wang Jun

Strategic Study of CAE 2008, Volume 10, Issue 7,   Pages 188-192

Abstract:

To solve the problem of thermal barrier is one of the key technologies that restrict the development of hypersonic vehicles. Starting from the point that phase change materials could be used as additional heat sink, five thermal control system concepts using phase change materials are put forward based on characteristic of different vehicles. They are air cycle system, vapor cycle system, liquid loop system, open evaporation cooling system and direct phase change materials heat storage system. The key technologies for the concepts are selection of appropriate phase change materials and encapsulation design of the materials, which are discussed on the background of aeronautics and astronautics.

Keywords： phase change material     thermal control     hypersonic vehicle    

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Adaptive tracking control for air-breathing hypersonic vehicles with state constraints Article

Gong-jun LI

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 5,   Pages 599-614 doi: 10.1631/FITEE.1500464

Abstract: We investigate the adaptive tracking problem for the longitudinal dynamics of state-constrained airbreathing hypersonic vehicles, where not only the velocity and the altitude, but also the angle of attack (AOA) is required to be tracked. A novel indirect AOA tracking strategy is proposed by viewing the pitch angle as a new output and devising an appropriate pitch angle reference trajectory. Then based on the redefined outputs (i.e., the velocity, the altitude, and the pitch angle), a modified backstepping design is proposed where the barrier Lyapunov function is used to solve the state-constrained control problem and the control gain of this class of systems is unknown. Stability analysis is given to show that the tracking objective is achieved, all the closed-loop signals are bounded, and all the states always satisfy the given constraints. Finally, numerical simulations verify the effectiveness of the proposed approach.

Keywords： Hypersonic vehicle     Constraints     Output redefinition     Barrier Lyapunov function    

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Discussion on Integrated Environment Control Thermal Management System Concepts for Hypersonic Vehicle

Wang Peiguang,Liu Yongji, Wang Jun

Strategic Study of CAE 2007, Volume 9, Issue 2,   Pages 38-48

Abstract:

Hypersonic vehicle is nowadays a focus in the field of aeronautics and astronautics. It will encounter with severe aero-heating during hypersonic flight. As a result, a reliable integrated thermal management system is a necessity to ensure flight safety. Concept of integrated thermal management system was put forward respectively,based on the characteristics of hypersonic vehicles with different missions.For vehicle which is characterized by short flight time and quick change of velocity and altitude,a concept of thermal management system which uses liquid唱hydrogen as major heat sink and PCM material as supplementary heat sink was presented. For that with longer flight time and higher Mach number,a concept of thermal management system using endothermic fuels as heat sink was advanced.Key technologies concerning these concepts were discussed, and research focuses in the future were indicated.

Keywords： hypersonic     vehicle     thermal management    

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Dvelopment of Aeronautics and Astronautics With Mechanics

Chen Shilu

Strategic Study of CAE 2003, Volume 5, Issue 3,   Pages 25-26

Abstract:

This paper discusses the development of aeronautics and astronautics with mechanics, reveals the development of new branches of interconnected sciences in mechanics, describes the relations of flight mechanics with aerodynamics, structure mechanics, general mechanics and automatic control, and introduces the new branch of flight mechanics—flight dynamics of elastic vehicle.

Keywords： aerodynamics     structure mechanics     general mechanics     automatic control     flight mechanics     flight dynamics of elastic vehicles    

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Nonlinear programming control using differential aerodynamic drag for CubeSat formation flying Article

Sheng-chao DENG, Tao MENG, Zhong-he JIN

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 7,   Pages 867-881 doi: 10.1631/FITEE.1500493

Abstract: Because of their volume and power limitation, it is difficult for CubeSats to configure a traditional propulsion system. Atmospheric drag is one of the space environmental forces that low-orbit satellites can use to realize orbit adjustment. This paper presents an integrated control strategy to achieve the desired in-track formation through the atmospheric drag difference, which will be used on ZJUCubeSat, the next pico-satellite of Zhejiang University and one of the participants of the international QB50 project. The primary mission of the QB50 project is to explore the near-Earth thermosphere and ionosphere at the orbital height of 90–300 km. Atmospheric drag cannot be ignored and has a major impact on both attitude and orbit of the satellite at this low orbital height. We conduct aerodynamics analysis and design a multidimensional nonlinear constraint programming (MNLP) strategy to calculate different desired area–mass ratios and corresponding hold times for orbit adjustment, taking both the semimajor axis and eccentricity into account. In addition, area–mass ratio adjustment is achieved by pitch attitude maneuver without any deployable mechanism or corresponding control. Numerical simulation based on ZJUCubeSat verifies the feasibility and advantage of this design.

Keywords： QB50     ZJUCubeSat     Atmospheric drag     Formation flying    

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Structural Deformation Monitoring of Flight Vehicles Based on Optical Fiber Sensing Technology: A Review and Future Perspectives Review

Lianqing Zhu,Guangkai Sun,Weimin Bao,Zheng You,Fanyong Meng,Mingli Dong

Engineering 2022, Volume 16, Issue 9,   Pages 39-55 doi: 10.1016/j.eng.2021.02.022

Abstract:

Structural deformation monitoring of flight vehicles based on optical fiber sensing (OFS) technology has been a focus of research in the field of aerospace. After nearly 30 years of research and development, Chinese and international researchers have made significant advances in the areas of theory and methods, technology and systems, and ground experiments and flight tests. These advances have led to the development of OFS technology from the laboratory research stage to the engineering application stage. However, a few problems encountered in practical applications limit the wider application and further development of this technology, and thus urgently require solutions. This paper reviews the history of research on the deformation monitoring of flight vehicles. It examines various aspects of OFS-based deformation monitoring including the main varieties of OFS technology, technical advantages and disadvantages, suitability in aerospace applications, deformation reconstruction algorithms, and typical applications. This paper points out the key unresolved problems and the main evolution paradigms of engineering applications. It further discusses future development directions from the perspectives of an evolution paradigm, standardization, new materials, intelligentization, and collaboration.

Keywords： Optical fiber sensing technology     Deformation monitoring     Structural health monitoring     Flight vehicle     Aerospace    

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Transient imaging with a time-of-flight camera and its applications

Jing-yu Lin, Ri-hui Wu, Hong-man Wang, Ye-bin Liu,jylin@gxu.edu.cn,liuyebin@tsinghua.edu.cn

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 9,   Pages 1268-1276 doi: 10.1631/FITEE.1700556

Abstract: is a technique in photography that records the process of light propagation before it reaches a stationary state such that events at the light speed level can be observed. In this review we introduce three main models for with a : correlation model, frequency-domain model, and compressive sensing model. applications usually involve resolving the problem of light transport and separating the light rays arriving along different paths. We discuss two of the applications: imaging objects inside and recovering both the shape and texture of an object around a corner.

Keywords： Transient imaging     Time-of-flight (ToF) camera     Scattering media     Around corners    

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US Regulators Clash Over 5G Rollout and Aircraft Safety

Mitch Leslie

Engineering 2022, Volume 15, Issue 8,   Pages 6-8 doi: 10.1016/j.eng.2022.06.002

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A Cyber-Physical Routing Protocol Exploiting Trajectory Dynamics for Mission-Oriented Flying Ad Hoc Networks Article

Die Hu, Shaoshi Yang, Min Gong, Zhiyong Feng, Xuejun Zhu

Engineering 2022, Volume 19, Issue 12,   Pages 217-227 doi: 10.1016/j.eng.2021.10.022

Abstract:

As a special type of mobile ad hoc network (MANET), the flying ad hoc network (FANET) has the potential to enable a variety of emerging applications in both civilian wireless communications (e.g., 5G and 6G) and the defense industry. The routing protocol plays a pivotal role in FANET. However, when designing the routing protocol for FANET, it is conventionally assumed that the aerial nodes move randomly. This is clearly inappropriate for a mission-oriented FANET (MO-FANET), in which the aerial nodes typically move toward a given destination from given departure point(s), possibly along a roughly deterministic flight path while maintaining a well-established formation, in order to carry out certain missions. In this paper, a novel cyber-physical routing protocol exploiting the particular mobility pattern of an MO-FANET is proposed based on cross-disciplinary integration, which makes full use of the mission-determined trajectory dynamics to construct the time sequence of rejoining and separating, as well as the adjacency matrix for each node, as prior information. Compared with the existing representative routing protocols used in FANETs, our protocol achieves a higher packet-delivery ratio (PDR) at the cost of even lower overhead and lower average end-to-end latency, while maintaining a reasonably moderate and stable network jitter, as demonstrated by extensive ns-3-based simulations assuming realistic configurations in an MO-FANET.

Keywords： Cyber-physical system     Flying ad hoc network (FANET)     Routing protocol     Trajectory dynamics     Unmanned aerial vehicle (UAV)    

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Flight control for air-breathing hypersonic vehicles using linear quadratic regulator design based on stochastic robustness analysis Article

Lin CAO, Shuo TANG, Dong ZHANG

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 7,   Pages 882-897 doi: 10.1631/FITEE.1601363

Abstract: The flight dynamics model of air-breathing hypersonic vehicles (AHVs) is highly nonlinear and multivariable cou-pling, and includes inertial uncertainties and external disturbances that require strong, robust, and high-accuracy controllers. In this paper, we propose a linear-quadratic regulator (LQR) design method based on stochastic robustness analysis for the longitudinal dynamics of AHVs. First, input/output feedback linearization is used to design LQRs. Second, subject to various system parameter uncertainties, system robustness is characterized by the probability of stability and desired performance. Then, the mapping rela-tionship between system robustness and LQR parameters is established. Particularly, to maximize system robustness, a novel hybrid particle swarm optimization algorithm is proposed to search for the optimal LQR parameters. During the search iteration, a Chernoff bound algorithm is applied to determine the finite sample size of Monte Carlo evaluation with the given probability levels. Finally, simulation results show that the optimization algorithm can effectively find the optimal solution to the LQR parameters.

Keywords： Air-breathing hypersonic vehicles (AHVs)     Stochastic robustness analysis     Linear-quadratic regulator (LQR)     Particle swarm optimization (PSO)     Improved hybrid PSO algorithm    

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Title Author Date Type Operation

Design and verification of a transfer path optimization method for an aircraft on the aircraft carrier flight deck

Weichao Si, Tao Sun, Chao Song, Jie Zhang,luckydevilsi@163.com,luckydevilhan@163.com,sxwxc.1984@163.com,zhangjie9886@126.com

Journal Article

The Application of Comprehensive Service Flying Hour to the Failure Analysis of Corrosion Fatigue Life of Aircraft Components

Lin Ming,Jin Ping,Sun Mingli

Journal Article

Robot Pilot: A New Autonomous System Toward Flying Manned Aerial Vehicles

Zibo Jin, Daochun Li, Jinwu Xiang

Journal Article

Study on modeling and simulation analysis for tailless configured V/STOL

Fan Yong,Zhu Jihong,Meng Xianyu,Liu Kai,Yang Xili

Journal Article

Lateral Vibration Analyses of Flying Vehicle under Thrust and Drag

Song Jian

Journal Article

Application of phase change materials to thermal controlsystems for hypersonic vehicles

Wang Peiguang,Liu Yongji,Wang Jun

Journal Article

Adaptive tracking control for air-breathing hypersonic vehicles with state constraints

Gong-jun LI

Journal Article

Discussion on Integrated Environment Control Thermal Management System Concepts for Hypersonic Vehicle

Wang Peiguang,Liu Yongji, Wang Jun

Journal Article

Dvelopment of Aeronautics and Astronautics With Mechanics

Chen Shilu

Journal Article

Nonlinear programming control using differential aerodynamic drag for CubeSat formation flying

Sheng-chao DENG, Tao MENG, Zhong-he JIN

Journal Article

Structural Deformation Monitoring of Flight Vehicles Based on Optical Fiber Sensing Technology: A Review and Future Perspectives

Lianqing Zhu,Guangkai Sun,Weimin Bao,Zheng You,Fanyong Meng,Mingli Dong

Journal Article

Transient imaging with a time-of-flight camera and its applications

Jing-yu Lin, Ri-hui Wu, Hong-man Wang, Ye-bin Liu,jylin@gxu.edu.cn,liuyebin@tsinghua.edu.cn

Journal Article

US Regulators Clash Over 5G Rollout and Aircraft Safety

Mitch Leslie

Journal Article

A Cyber-Physical Routing Protocol Exploiting Trajectory Dynamics for Mission-Oriented Flying Ad Hoc Networks

Die Hu, Shaoshi Yang, Min Gong, Zhiyong Feng, Xuejun Zhu

Journal Article

Flight control for air-breathing hypersonic vehicles using linear quadratic regulator design based on stochastic robustness analysis

Lin CAO, Shuo TANG, Dong ZHANG

Journal Article