Articoli di riviste: "Flight Simulation"

1

McMillian, Dave, Dave Johnson e Gareth Walter. "Simulation: flight simulation". Manufacturing Engineer 70, n. 7 (1991): 32. http://dx.doi.org/10.1049/me:19910158.

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Haber, Ralph Norman. "Flight Simulation". Scientific American 255, n. 1 (luglio 1986): 96–103. http://dx.doi.org/10.1038/scientificamerican0786-96.

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Stone, R. J. "Flight simulation". Applied Ergonomics 18, n. 3 (settembre 1987): 245–46. http://dx.doi.org/10.1016/0003-6870(87)90014-7.

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Chen, Qiang, Tingsong Lu, Yang Tong, Guoliang Luo, Xiaogang Jin e Zhigang Deng. "A Practical Model for Realistic Butterfly Flight Simulation". ACM Transactions on Graphics 41, n. 3 (30 giugno 2022): 1–12. http://dx.doi.org/10.1145/3510459.

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Butterflies are not only ubiquitous around the world but are also widely known for inspiring thrill resonance, with their elegant and peculiar flights. However, realistically modeling and simulating butterfly flights—in particular, for real-time graphics and animation applications—remains an under-explored problem. In this article, we propose an efficient and practical model to simulate butterfly flights. We first model a butterfly with parametric maneuvering functions, including wing-abdomen interaction. Then, we simulate dynamic maneuvering control of the butterfly through our force-based model, which includes both the aerodynamics force and the vortex force. Through many simulation experiments and comparisons, we demonstrate that our method can efficiently simulate realistic butterfly flight motions in various real-world settings.

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Motoda, Toshikazu, Yoshikazu Miyazawa, Kazutoshi Ishikawa e Tatsushi Izumi. "Automatic landing flight experiment flight simulation analysis and flight testing". Journal of Spacecraft and Rockets 36, n. 4 (luglio 1999): 554–60. http://dx.doi.org/10.2514/3.27199.

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Trevino, George. "Turbulence for flight simulation". Journal of Aircraft 23, n. 4 (aprile 1986): 348–49. http://dx.doi.org/10.2514/3.45310.

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Stewart, Stephen J. "Flight simulation for museums". SIMULATION 51, n. 6 (dicembre 1988): 235–41. http://dx.doi.org/10.1177/003754978805100605.

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Lin, Xu. "Space flight visual simulation". Acta Astronautica 12, n. 3 (marzo 1985): 177–85. http://dx.doi.org/10.1016/0094-5765(85)90059-1.

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Burrows, W. G. "Book review: Flight Simulation". Journal of the Institution of Electronic and Radio Engineers 57, n. 4 (1987): 166. http://dx.doi.org/10.1049/jiere.1987.0059.

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McLean, D. "Book review: Flight Simulation". IEE Proceedings D Control Theory and Applications 134, n. 5 (1987): 346. http://dx.doi.org/10.1049/ip-d.1987.0057.

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Busygin, A. S., e А. V. Shumov. "MULTISTAGE ROCKET FLIGHT SIMULATION". Issues of radio electronics, n. 3 (20 marzo 2019): 105–7. http://dx.doi.org/10.21778/2218-5453-2019-3-105-107.

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The paper considers a method for simulating the flight of a multistage rocket in Matlab using Simulink software for control and guidance. The model takes into account the anisotropy of the gravity of the Earth, changes in the pressure and density of the atmosphere, piecewise continuous change of the center of mass and the moment of inertia of the rocket during the flight. Also, the proposed model allows you to work out various targeting options using both onboard and ground‑based information tools, to load information from the ground‑based radar, with imitation of «non‑ideality» of incoming target designations as a result of changes in the accuracy of determining coordinates and speeds, as well as signal fluctuations. It is stipulated that the design is variable not only by the number of steps, but also by their types. The calculations are implemented in a matrix form, which allows parallel operations in each step of processing a multidimensional state vector of the simulated object.

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MAEDA, Masateru, Na GAO, Naoshi NISHIHASHI e Hao LIU. "A Free-Flight Simulation of Insect Flapping Flight". Journal of Aero Aqua Bio-mechanisms 1, n. 1 (2010): 71–79. http://dx.doi.org/10.5226/jabmech.1.71.

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Jin, Guo Dong, Li Bin Lu, Juan Liang e Xiao Fei Zhu. "Flight Control System for UAV Based on Simulink". Advanced Materials Research 709 (giugno 2013): 662–66. http://dx.doi.org/10.4028/www.scientific.net/amr.709.662.

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Most UAV flight control system simulation was used for evaluating the quality of UAV and designing it, however, the results failed to conform to actual flight laws. According to the need of UAV simulator in actually, a new way which was convenient for engineering computing and appropriated for simulation training was built for simulating flight control system. With the actual flight figures, flight parameters were modified by Least squares method curve fitting. The system offers a way for developing UAV simulation training system, thus of great value in both theory and practice.

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Jia, Meng, e Yingbao Yang. "Cross-emotional infection among multi-flight groups in mass flight delays". Kybernetes 45, n. 10 (7 novembre 2016): 1589–603. http://dx.doi.org/10.1108/k-01-2016-0003.

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Purpose The purpose of this paper is to study dynamic evolution of passenger emotional contagion among different flights emerging in mass flight delays, so as to quantitatively analyze emotional variation tendencies and influences of concerned factors and intervention measures. Design/methodology/approach An intervening variable of group emotion was introduced into emotional contagion model to simulate passenger emotional evolution among multi-flight groups. Besides, personalities, characters and social relationships were considered to represent individual differences in emotional changes. Based on personal contact relationships, emotional contagion model was proposed to evaluate cross-emotion transition processes among different groups under scenarios of information shortage. Eventually, evolutionary processes of passenger emotions were fused in an agent-based simulation based on social force correction model. Findings Simulation experiment results revealed that passenger emotions suffer from combined impacts of individual emotional changes and emotional interactions among adjacent flights through a comparison with actual survey. Besides, emotional interactions accelerate processes of emotion transitions, and have significant impacts on adjacent flights when different measures are taken. Moreover, taking intervention measures simultaneously seems more effective than implementing intervention successively. Originality/value The proposed method makes up for deficiency of ignoring effects of emotional interactions among adjacent flights. It contributes to providing control methods and strategies for relevant departments and improving the efficiency and ability of handling passenger collective events in mass flight delays.

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Takeda, K., S. J. Newman, J. Kenny e M. Zyskowski. "Convergence: Commodity flight simulation and the future". Aeronautical Journal 112, n. 1136 (ottobre 2008): 599–607. http://dx.doi.org/10.1017/s0001924000002566.

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Abstract The development of commodity flight simulation, in the form of PC game technology, continues to advance at a rapid pace. Indeed, the software industry is now being driven primarily by the requirements of gaming, digital media, and other entertainment applications. This has largely been due to the commoditisation of computer hardware, which is apparent when considering recent trends in central processing unit and graphics processor development. The flight simulation industry has benefited from this trend of hardware commoditisation, and will continue to do so for the foreseeable future. It is, however, yet to fully realise the potential for leveraging commodity-off-the-shelf (COTS) software. In this paper the opportunities presenting themselves for the next 25 years of flight simulation are discussed, as the aviation and games software industry’s requirements converge. A SWOT (strengths-weaknesses-opportunities-threats) analysis of the commodity flight simulation software industry is presented, including flight modelling, scenery generation, multiplayer technology, artificial intelligence, mission planning, and event handling. Issues such as data portability, economics, licensing, intellectual-property, interoperability, developer extensibility, robustness, qualification, and maintainability are addressed. Microsoft Flight Simulator is used as a case study of how commodity flight simulation has been extended to include extensive programmatic access to its core engine. Examples are given on how the base platform of this application can be extended by third-party developers and the power this extensibility model provides to the industry. This paper is presented to highlight particular technology trends in the commodity flight simulation industry, the fidelity that commodity flight simulations can provide, and to provide a high-level overview of the strengths and weaknesses thereof.

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Štrbac, Alexander, Daniel Heinrich Greiwe, Frauke Hoffmann, Marion Cormier e Thorsten Lutz. "Piloted Simulation of the Rotorcraft Wind Turbine Wake Interaction during Hover and Transit Flights". Energies 15, n. 5 (28 febbraio 2022): 1790. http://dx.doi.org/10.3390/en15051790.

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Helicopters are used for offshore wind farms for maintenance and support flights. The number of helicopter operations is increasing with the expansion of offshore wind energy, which stresses the point that the current German regulations have not yet been validated through scientific analysis. A collaborative research project between DLR, the Technical University of Munich, the University of Stuttgart and the University of Tübingen has been conducted to examine the sizes of the flight corridors on offshore wind farms and the lateral safety clearance for helicopter hoist operations at offshore wind turbines. This paper details the results of piloted helicopter simulations in a realistic offshore wind farm scenario. The far-wake of rotating wind turbines and the near-wake of non-rotating wind turbines have been simulated with high-fidelity computational fluid dynamics under realistic turbulent inflow conditions. The resulting flow fields have been processed by superposition during piloted simulations in the research flight simulator AVES to examine the flight corridors in transit flights and the lateral safety clearance in hovering flights. The results suggest a sufficient size for the flight corridor and sufficient lateral safety clearance at the offshore wind turbines in the considered scenarios.

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Stanisławski, Jarosław. "Simulation of Boundary States of Helicopter Flight". Journal of KONES 26, n. 2 (1 giugno 2019): 137–44. http://dx.doi.org/10.2478/kones-2019-0042.

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Abstract Results of simulation of main rotor blade loads and deformations, which can be generated during boundary states of helicopter flight, are presented. Concerned cases of flight envelope include hover at maximum height, level flight at high velocity, pull-up manoeuvres applying cyclic pitch and mixed collective and cyclic control. The simulation calculations were executed for data of light helicopter with three-bladed articulated rotor. For analysis, the real blades are treated as elastic axes with distributed masses of blade segments. The model of deformable blade allows for out-of-plane bending, in plane bending, and torsion. For assumed flight state of helicopter, the equations of rotor blades motion are solved applying Runge-Kutta method. According to Galerkin method, for each concerned azimuthal position of blade the parameters of its motions are assumed as a combination of considered bending and torsion eigen modes of the blade. The loads of rotor blades generated during flight depend due to velocity of flight, helicopter mass, position of rotor axis in air and deflections of swashplate that correspond to collective and cyclic pitch angle applied to rotor blades. The results of simulations presenting rotor loads and blade deformations are shown in form of time-runs and as plots of rotor-disk distributions. The simulations of helicopter flight states may be useful for prediction the conditions of flight-tests without exceeding safety boundaries or may help to define limitations for manoeuvre and control of helicopter.

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Sheng, Xiao Wei, Jun Wei Han e Ming Hui Hao. "Sound Analysis and Synthesis for Audio Simulation System of Flight Simulator". Advanced Materials Research 748 (agosto 2013): 708–12. http://dx.doi.org/10.4028/www.scientific.net/amr.748.708.

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Through simulating the feelings of vision, hearing, motion and force during flight, the flight simulator can build a realistic flight environment on the ground. Therefore, Flight simulators have an important role in pilot training field. Audio simulation system is a key component of the flight simulator, it has direct impact on the realism and immersion of flight simulation. In this paper, we introduced the development procedure of audio simulation system shortly. Software implementation and its key development technology were mainly focused for expressing the necessity of extracting sound sources from original cockpit recordings. Based on the development method and practical recording conditions, we dicussed sound short-time Fourier analysis and synthesis technology, and sound linear prediction analysis and synthesis technology in detail. The objective of using these technologies was to extract sound sources from original recordings and this was also the preparation step of sound simulation.

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Petraki, Konstantina, Maria G. Grammatikopoulou, Fotios Tekos, Zoi Skaperda, Marina Orfanou, Robin Mesnage, Tonia Vassilakou e Demetrios Kouretas. "Estimation of Redox Status in Military Pilots during Hypoxic Flight-Simulation Conditions—A Pilot Study". Antioxidants 11, n. 7 (24 giugno 2022): 1241. http://dx.doi.org/10.3390/antiox11071241.

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At high altitude conditions, the low-pressure atmospheric oxygen reduces the generation of energy, thus inducing a decrease in oxygen availability. As a result, endurance flights evoke imbalance in redox signaling, posing a safety risk for the pilots involved. The aim of the present study was to assess changes in the redox status of military pilots during flight simulation conditions according to their flight hours (experts vs. novice). A total of seven expert pilots and an equal number of novice pilots (trainees) were recruited from the Center for Airforce Medicine of the Greek Military Airforce. Glutathione (GSH) levels, catalase activity (CAT), total antioxidant capacity (TAC), lipid peroxidation through the thiobarbituric acid-reactive substances (TBARS), and protein oxidative damage through the assay of protein carbonyls (PCs) levels were assessed at two time points, once prior to and once immediately post a scheduled flight simulation. In the experienced pilots’ arms, GSH was significantly increased post-flight simulation, with TAC being simultaneously reduced. On the other hand, in the trainees’ arms, CAT and TAC were both increased post-flight. No differences were noted with regard to the TBARS and PCs post-simulation. When the two groups were compared, TAC and PCs were significantly lower in the trainees compared to the experienced pilots. The present study provides useful insight into the physiological redox status adaptations to hypobaric hypoxic flight conditions among pilots. In a further detail, an increase in GSH response post-flight simulation is being evoked in more experienced pilots, indicating an adaptation to the extreme flight conditions, as they battle oxidative stress.

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Tuplin, Simon, Martin Passmore, David Rogers, Andy R. Harland, Tim Lucas e Chris Holmes. "The application of simulation to the understanding of football flight". Proceedings of the Institution of Mechanical Engineers, Part P: Journal of Sports Engineering and Technology 226, n. 2 (25 aprile 2012): 134–42. http://dx.doi.org/10.1177/1754337112444402.

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This paper demonstrates the value of using a flight model in the analysis of the flight of a football, and explores the complexity of the model required to produce useful results. Two specific aspects of the simulation are addressed: the need to include a model of spin decay and the requirement to include a full aerodynamic drag profile as a function of Reynolds number rather than a single indicative value. Both are aspects of the ball performance that are experimentally intensive to obtain. The simulated flights show that the inclusion of spin degradation is important if flight validation is the objective, but that it may be unnecessary in a comparative study. The simple analytical model of spin degradation is shown to over-estimate the reduction in lateral deviation when compared to experimentally acquired data. Therefore, the experimental method is preferred. The analysis of the shape of the drag profile (drag coefficient against Reynolds number) is explored, and it is shown from the simulated flights that post-critical coefficients of drag have the greatest effect on trajectories, and an average drag value is sufficient for most modelled scenarios.

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Park, Seongjoon, Woong Gyu La, Woonghee Lee e Hwangnam Kim . "Devising a Distributed Co-Simulator for a Multi-UAV Network". Sensors 20, n. 21 (30 ottobre 2020): 6196. http://dx.doi.org/10.3390/s20216196.

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Practical evaluation of the Unmanned Aerial Vehicle (UAV) network requires a lot of money to build experiment environments, which includes UAVs, network devices, flight controllers, and so on. To investigate the time-sensitivity of the multi-UAV network, the influence of the UAVs’ mobility should be precisely evaluated in the long term. Although there are some simulators for UAVs’ physical flight, there is no explicit scheme for simulating both the network environment and the flight environments simultaneously. In this paper, we propose a novel co-simulation scheme for the multiple UAVs network, which performs the flight simulation and the network simulation simultaneously. By considering the dependency between the flight status and networking situations of UAV, our work focuses on the consistency of simulation state through synchronization among simulation components. Furthermore, we extend our simulator to perform multiple scenarios by exploiting distributed manner. We verify our system with respect to the robustness of time management and propose some use cases which can be solely simulated by this.

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Liu Haohan, e He Huaiqing. "Rainfall Simulation in Flight View". International Journal of Digital Content Technology and its Applications 5, n. 6 (30 giugno 2011): 421–28. http://dx.doi.org/10.4156/jdcta.vol5.issue6.49.

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Leon, Nelson De, e Matthew N. De Leon. "Aerodynamic simulation of indoor flight". European Journal of Physics 28, n. 2 (22 gennaio 2007): 255–65. http://dx.doi.org/10.1088/0143-0807/28/2/011.

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Menendez, R. G., e J. E. Bernard. "Flight simulation in synthetic environments". IEEE Aerospace and Electronic Systems Magazine 16, n. 9 (2001): 19–23. http://dx.doi.org/10.1109/62.949532.

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Gupta, Kajal K., Sangbum Choi e Adem Ibrahim. "Flight systems aeroelastic‐acoustics simulation." Journal of the Acoustical Society of America 124, n. 4 (ottobre 2008): 2574. http://dx.doi.org/10.1121/1.4783126.

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Barnes, A. G. "Modelling requirements in flight simulation". Aeronautical Journal 98, n. 980 (dicembre 1994): 395–404. http://dx.doi.org/10.1017/s0001924000027020.

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It would be difficult to exaggerate the impact of models on our lives — in recreation, education, investigation, inspiration, and intuition. The models can be real or abstract, static or dynamic, simple or complex, and scaled in size or time. Their use can be either explicit or implicit. Appreciation of the value of models has been heightened by the availability of desktop computing power. Experts on any topic cannot be interviewed on TV without a personal computer in the background, to reinforce their image.

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Newman, Simon. "Flight Simulation — An Engineering Approach". Measurement and Control 33, n. 8 (ottobre 2000): 234–36. http://dx.doi.org/10.1177/002029400003300803.

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Glassner, A. "Manned flight [virtual reality simulation]". IEEE Computer Graphics and Applications 20, n. 1 (2000): 48–49. http://dx.doi.org/10.1109/38.814558.

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Cheng, Mu-lin, Wen-bo Miao e Chang-sheng Zhong. "Numerical simulation of insect flight". Applied Mathematics and Mechanics 27, n. 5 (maggio 2006): 601–6. http://dx.doi.org/10.1007/s10483-006-0505-z.

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Borys, B. B., e S. S. Dussoye. "Flight Simulation Facilities in Europe". IFAC Proceedings Volumes 28, n. 23 (settembre 1995): 333–38. http://dx.doi.org/10.1016/s1474-6670(17)46641-9.

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Chappell, S. L., e G. A. Sexton. "Advanced concepts flight simulation facility". Applied Ergonomics 17, n. 4 (dicembre 1986): 252–56. http://dx.doi.org/10.1016/0003-6870(86)90126-2.

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Allerton, D. J. "Flight simulation - past, present and future". Aeronautical Journal 104, n. 1042 (dicembre 2000): 651–63. http://dx.doi.org/10.1017/s0001924000096901.

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Abstract This paper outlines the development of flight simulators used in civil training, military training and in engineering simulation. It describes the evolution of flight simulators and the typical architecture of a modern flight simulator. The technical innovations, which have occurred in modelling, motion systems and visual systems are reviewed. The paper also reviews the transfer of training in flight simulation, the application of simulation to engineering design and outlines problems which are encountered in flight simulation. The paper concludes by reviewing the current trends in flight simulation.

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Fruncillo, Felice, Luigi Federico, Marco Cicala e Roberto Citarella. "Development and Validation of an Aeropropulsive and Aeroacoustic Simulation Model of a Quadcopter Drone". Drones 6, n. 6 (9 giugno 2022): 143. http://dx.doi.org/10.3390/drones6060143.

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In the present work a dynamic simulation model for a quadcopter drone is developed and validated through experimental flight data. The aerodynamics of the rotors is modeled with the blade element theory combined with the Peters and He dynamic wake model, using an appropriate number of states. The aerodynamic forces and moments thus calculated feed the dynamic equations of a drone and an aeroacoustics model, to obtain an estimate of the noise generated during the flight. Loading and thickness noise are calculated as a time domain solution of the wave equation (Farassat 1A formulation), with mobile sources in stagnant flow. The results of numerical simulations are compared with experimental data recorded during flights performed at the Aerospace Italian Research Center (CIRA), both for the flight dynamics and the aeroacoustics models. To customize the model to the drone used, a laser scanner is used to obtain the geometric characteristics of the blades and the XFOIL program is used to calculate the blade profile aerodynamic coefficients.

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Lazic, Dragan Andrija, Vladimir Grujic e Marko Tanaskovic. "The role of flight simulation in flight training of pilots for crisis management". South Florida Journal of Development 3, n. 3 (2 giugno 2022): 3624–36. http://dx.doi.org/10.46932/sfjdv3n3-046.

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Every day over 102.000 commercial passenger flights take place on a global scale above our heads. Because of that many questions arise in the areas of safety and security in massive air traffic. If airlines use crisis management, any activity concerning the preparation of the crew and the aircraft for a particular task - flight gets more significance and importance. During the flight, the pilot - the captain of the aircraft, is the key person of any company activity that includes transport of people and goods, and that is the reason why a pilot's psycho-physical abilities and flying performance must be constantly checked, evaluated and improved. In a plane crash near North Macedonia's capital city Skopje, the aviation investigators discovered the number of serious failures in pilot training that led to the fall of a private plane Cessna 340. The investigation revealed that although the pilot was certificated to fly in instrument meteorological conditions, his actions in the air indicate that he was not well trained. European and American aviation authorities have clear legal regulations regarding the training and certification for individual flight categories as well as a categorized simulation technique where pilots exercise before they get one of the flying categories. Flight simulators play an essential role in the training of the future pilots for both visual and instrumental flight conditions

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ENOMOTO, Hirohisa, Masaki HAMAMOTO, Toshiaki HISADA, Keita HARA e Yoshiji OHTA. "Free-flight simulation of Sympetrum frequens hovering". Proceedings of The Computational Mechanics Conference 2003.16 (2003): 83–84. http://dx.doi.org/10.1299/jsmecmd.2003.16.83.

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Szczepanski, Cezary, Mariusz Krawczyk e Albert Zajdel. "The airplane trim system – new functionalities". Aircraft Engineering and Aerospace Technology 92, n. 9 (4 giugno 2020): 1401–6. http://dx.doi.org/10.1108/aeat-12-2019-0241.

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Purpose A standard automatic flight control system – autopilot – will become required equipment of the future aircraft, operating in the common sky. For a specific group of aircraft, they are too expensive and too energy-consuming solutions. This paper aims to present the concept of an automatic flight control system that overcomes those limitations. Design/methodology/approach The proposed automatic flight control system uses the trim tabs in all prime flight controlling surfaces: elevator, ailerons and rudder, for stabilizing and controlling the steady flights of an aircraft. Findings The results of an aeroplane flight controlled with the use of trim tabs simulation tests and remarks have been presented and discussed. The simulation was conducted in real-time hardware in the loop environment. The stabilization of the flight was achieved in performed test scenarios. Originality/value The possibility to control an aircraft with coordinated deflections of the trimming surfaces is a beneficial alternate to those currently used and can be recommended for use in the next-generation aircraft.

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Liu, S., J. Bai e C. Wang. "Energy acquisition of a small solar UAV using dynamic soaring". Aeronautical Journal 125, n. 1283 (20 agosto 2020): 60–86. http://dx.doi.org/10.1017/aer.2020.79.

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ABSTRACTDynamic soaring improves the endurance of Unmanned Aerial Vehicles (UAVs) by obtaining energy from the horizontal wind shear gradient. The use of dynamic soaring in small solar UAVs can mitigate the trade-off between energy capacity and battery weight to achieve continuous all-day flight. The goal of this study is to determine the optimal energy acquisition methods for small solar UAVs using dynamic soaring and to decrease the battery weight to achieve all-day flight. A dynamic soaring UAV model that considers the influence of the wind shear gradient and a solar power energy model are established. The conditions to obtain a closed-loop energy system during daytime and nighttime flights are discussed, and the minimum mass of the energy system required for these conditions is determined. Simulations of single-cycle circular flights and a 72-h continuous flight of a small solar UAV are performed. The analyses and simulation results show that: (1) the combination of dynamic soaring and solar technology significantly reduces the energy consumption and reduces the required battery weight, (2) the flight speed and flight attitude angles have significant effects on the optimal total energy acquisition and (3) wind fields with a large horizontal gradient and strong solar illumination provide energy and load advantages.

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Allerton, D. J. "The impact of flight simulation in aerospace". Aeronautical Journal 114, n. 1162 (dicembre 2010): 747–56. http://dx.doi.org/10.1017/s0001924000004231.

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AbstractThis paper explains how flight simulation has made a major contribution to flight safety over the last thirty years to become critical to the operation of civil airlines and military organisations. It not only provides effective training, but for many flight training organisations has reduced the cost of flight training significantly. The paper outlines the increasing role of flight simulation covering flight training and research and development of aircraft and systems. The contribution of the flight simulation industry to the UK economy, in terms of both employment and revenue, is highlighted.The paper focuses on advances in the underpinning technologies of flight simulation, including mathematical modelling, real-time computation, motion actuation, visual image generation systems and projection systems.The paper also summarises the broadening roles of flight simulation; from part-task trainers to zero flight-time training in civil aviation; in military aviation, extending to combat domes and mission rehearsal; in defence procurement, where synthetic environments are used widely in evaluation studies prior to major project commitments; in aircraft development, providing powerful design tools to enable system designers to evaluate prototype systems.As a result of the acceptance of flight simulation in flight training, the use of simulators has been standardised throughout the world, with formal programmes of simulator qualification. These regulations, drawn up with the help of the RAeS Flight Simulation Group, ensure consistency for operators, regulators and manufacturers; the status of these regulations is outlined.The paper concludes by reviewing the lessons learnt by the flight simulation industry over the last thirty years and summaries the potential areas of growth, which will lead to simulation becoming widespread throughout many industries, in addition to the aerospace industry.

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Fussell, Stephanie G., e Michelle P. Hight. "Usability Testing of a VR Flight Training Program". Proceedings of the Human Factors and Ergonomics Society Annual Meeting 65, n. 1 (settembre 2021): 1124–28. http://dx.doi.org/10.1177/1071181321651096.

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Virtual reality (VR) flight training programs are being developed as a low-cost, highly realistic training option and tested to ensure user expectations for skills mastery are met. A usability pilot study was conducted in two experimental courses comparing the training effectiveness of 2D and VR simulation for flight training at a university in the Southwestern United States. The results indicated that system usability was significantly higher in the VR group. There was no significant difference between groups for perceived workload nor user experience. Although both groups reported low symptoms of simulator sickness, users in the VR group reported significantly higher levels of eye strain. Both groups found the simulations to be enjoyable and several users stated that the simulations were beneficial for learning flight maneuvers. The results of the pilot study demonstrated that overall, VR simulation is similar to 2D simulation for flight training in terms of usability and user satisfaction.

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Tunik, Anatolii, Volodymyr Larin, Olha Sushchenko e Svitlana Ilnytska. "On Features of Planning Trajectories for Quadrotors". Electronics and Control Systems 3, n. 69 (21 dicembre 2021): 48–55. http://dx.doi.org/10.18372/1990-5548.69.16427.

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Abstract (sommario):

The paper deals with studying the process of planning trajectories during the quadrotor flight. The typical trajectories of the drone flights have been analyzed. Block diagram of the control system in the nonholonomic case and the horizontal flight is given. Comparative analysis of the most widespread trajectories is represented. The possibility to use two types of Dubins trajectory is analysed. Introducing polar coordinates for forming flight trajectories is proposed. The grounded choice of the quadrotor trajectories for different cases of the holonomic and nonholonomic closed-loop control systems was proposed. The advantages and disadvantages of the trajectories planning in each of these cases were analyzed. The Simulink models for generators of the quadrotor trajectories have been developed. The simulation results of generations of these trajectories have been represented. The possibilities of MATLAB for simulating flight trajectories are shown. The obtained results can be applied for unmanned aerial vehicles of different types.

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41

LI, HAO, ZHONG-LIANG ZHAO e ZHAO-LIN FAN. "SIMULATION METHOD FOR WIND TUNNEL BASED VIRTUAL FLIGHT TESTING". International Journal of Modern Physics: Conference Series 19 (gennaio 2012): 381–89. http://dx.doi.org/10.1142/s2010194512008975.

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Abstract (sommario):

The Wind Tunnel Based Virtual Flight Testing (WTBVFT) could replicate the actual free flight and explore the aerodynamics/flight dynamics nonlinear coupling mechanism during the maneuver in the wind tunnel. The basic WTBVFT concept is to mount the test model on a specialized support system which allows for the model freely rotational motion, and the aerodynamic loading and motion parameters are measured simultaneously during the model motion. The simulations of the 3-DOF pitching motion of a typical missile in the vertical plane are performed with the openloop and closed-loop control methods. The objective is to analyze the effect of the main differences between the WTBVFT and the actual free flight, and study the simulation method for the WTBVFT. Preliminary simulation analyses have been conducted with positive results. These results indicate that the WTBVFT that uses closed-loop autopilot control method with the pitch angular rate feedback signal is able to replicate the actual free flight behavior within acceptable differences.

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42

Yang, Ran, e Long Yan. "The Design of a 3D Flight Simulation and Monitoring Platform". Advanced Materials Research 466-467 (febbraio 2012): 971–75. http://dx.doi.org/10.4028/www.scientific.net/amr.466-467.971.

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Abstract (sommario):

A 3D flight simulation and monitoring platform is established based on the technology of 3D terrain rendering, dynamic model drive and data fusion. The platform is supported by a aviation project. The primary purpose of the platform is to monitor and simulate the flight status in real-time. The development process of the platform is introduced and the method of 3D-Terrain is discussed. The simulating and monitoring results show that the platform is available and satisfied requirements. The 3D flight simulation and monitoring platform is also proved to be feasible and reliable.

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43

Xu, Jiulong, Yongping Hao e Shoutai Wang. "Flight Control Simulation and Flight Test of Foldable Rotor UAV". Journal of Physics: Conference Series 2252, n. 1 (1 aprile 2022): 012052. http://dx.doi.org/10.1088/1742-6596/2252/1/012052.

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Abstract (sommario):

Abstract Aiming at the short endurance time of micro-rotor UAV, based on the analysis of the structural characteristics and the working principle of rotor UAV, a design scheme of foldable quad-rotor UAV based on c is proposed. The feasibility of cascade PID control method is verified by co-simulation and analysis with ADAMS dynamics simulation software and MATLAB. Through the comparison of the flight test results, the feasibility of the designed control algorithm for the attitude control of the foldable quadrotor UAV is verified. Flight test shows that the UAV can achieve foldable function on the basis of stable hovering and high flight, achieved good results.

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44

Xu, Jiulong, Yongping Hao e Shoutai Wang. "Flight Control Simulation and Flight Test of Foldable Rotor UAV". Journal of Physics: Conference Series 2252, n. 1 (1 aprile 2022): 012052. http://dx.doi.org/10.1088/1742-6596/2252/1/012052.

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Abstract (sommario):

Abstract Aiming at the short endurance time of micro-rotor UAV, based on the analysis of the structural characteristics and the working principle of rotor UAV, a design scheme of foldable quad-rotor UAV based on c is proposed. The feasibility of cascade PID control method is verified by co-simulation and analysis with ADAMS dynamics simulation software and MATLAB. Through the comparison of the flight test results, the feasibility of the designed control algorithm for the attitude control of the foldable quadrotor UAV is verified. Flight test shows that the UAV can achieve foldable function on the basis of stable hovering and high flight, achieved good results.

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45

Go, Jun-Su, Ho-Geun Lee e Jin-Yeong Lee. "In-Flight Simulation for the Evaluation of Flight Control Law". Journal of the Korean Society for Aeronautical & Space Sciences 31, n. 10 (1 dicembre 2003): 79–88. http://dx.doi.org/10.5139/jksas.2003.31.10.079.

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46

Horri, Nadjim, e Mikolaj Pietraszko. "A Tutorial and Review on Flight Control Co-Simulation Using Matlab/Simulink and Flight Simulators". Automation 3, n. 3 (3 settembre 2022): 486–509. http://dx.doi.org/10.3390/automation3030025.

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Abstract (sommario):

Flight testing in a realistic three-dimensional virtual environment is increasingly being considered a safe and cost-effective way of evaluating aircraft models and their control systems. The paper starts by reviewing and comparing the most popular personal computer-based flight simulators that have been successfully interfaced to date with the MathWorks software. This co-simulation approach allows combining the strengths of Matlab toolboxes for functions including navigation, control, and sensor modeling with the advanced simulation and scene rendering capabilities of dedicated flight simulation software. This approach can then be used to validate aircraft models, control algorithms, handle flight characteristics, or perform model identification from flight data. There is, however, a lack of sufficiently detailed step-by-step flight co-simulation tutorials, and there have also been few attempts to evaluate more than one flight co-simulation approach at a time. We, therefore, demonstrate our own step-by-step co-simulation implementations using Simulink with three different flight simulators: Xplane, FlightGear, and Alphalink’s virtual flight test environment (VFTE). All three co-simulations employ a real-time user datagram protocol (UDP) for data communication, and each approach has advantages depending on the aircraft type. In the case of a Cessna-172 general aviation aircraft, a Simulink co-simulation with Xplane demonstrates successful virtual flight tests with accurate simultaneous tracking of altitude and speed reference changes while maintaining roll stability under arbitrary wind conditions that present challenges in the single propeller Cessna. For a medium endurance Rascal-110 unmanned aerial vehicle (UAV), Simulink is interfaced with FlightGear and with QGroundControl using the MAVlink protocol, which allows to accurately follow the lateral UAV path on a map, and this setup is used to evaluate the validity of Matlab-based six degrees of freedom UAV models. For a smaller ZOHD Nano Talon miniature aerial vehicle (MAV), Simulink is interfaced with the VFTE, which was specifically designed for this MAV, and with QGroundControl for the testing of advanced H-infinity observer-based autopilots using a software-in-the-loop (SIL) simulation to achieve robust low altitude flight under windy conditions. This is then finally extended to hardware-in-the-loop (HIL) implementation on the Nano Talon MAV using a controller area network (CAN) databus and a Pixhawk-4 mini autopilot with simulated sensor models.

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47

Liu, Hengyi, Guoji Zou e Bin Meng. "Construction of High Dynamic Flight Closed-loop Simulation System". Journal of Physics: Conference Series 2403, n. 1 (1 dicembre 2022): 012034. http://dx.doi.org/10.1088/1742-6596/2403/1/012034.

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Abstract (sommario):

Abstract In this study, a high dynamic flight closed-loop simulation system was designed and based on the flight characteristics of flight combat systems (missiles, fighters, etc.), the real-time simulation of 6DoF (six degrees of freedom) flight parameters such as position, velocity, acceleration, and attitude of typical flight combat system models in high dynamic flight was implemented. The proposed system, together with the high dynamic Beidou RNSS signal simulator and automated test and evaluation device, forms the high dynamic positioning test platform of the flight simulation system and realizes the closed-loop simulation test and verification of the navigation device of the high dynamic flight combat system.

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48

Schoř, Pavel, Martin Kouřil e Vladimír Daněk. "SIMULATION OF A MANEUVERING AIRCRAFT USING A PANEL METHOD". Acta Polytechnica 61, n. 2 (30 aprile 2021): 378–90. http://dx.doi.org/10.14311/ap.2021.61.0378.

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Abstract (sommario):

We present a method for numerical simulations of a maneuvering aircraft, which uses a first-order unsteady panel method as the only source of aerodynamic forces and moments. By using the proposed method, it is possible to simulate a motion of an aircraft, while the only required inputs are geometry and inertia characteristics, which significantly reduces the time required to start the simulation. We validated the method by a comparison of recordings of flight parameters (position, velocities, accelerations) from an actual aerobatic flight of a glider and the results obtained from the simulations. The simulation was controlled by deflections of control surfaces recorded during the actual flight. We found a reasonable agreement between the experimental data and the simulation. The design of our method allows to evaluate not only the integral kinematic quantities but also instant local pressure and inertia loads. This makes our method useful also for a load evaluation of an aircraft. A significant advantage of the proposed method is that only an ordinary workstation computer is requiredto perform the simulation.

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49

Mohammed, Tariq O., Xiang Jin Wu e Dao Chun Li. "Nonlinear Simulation of Aircraft Longitudinal Flight Dynamics". Applied Mechanics and Materials 444-445 (ottobre 2013): 753–58. http://dx.doi.org/10.4028/www.scientific.net/amm.444-445.753.

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Abstract (sommario):

The purpose of this paper is to simulate flight path of Boeing-747 for longitudinal motion at selected flight conditions using 6 DoF (Degrees of freedom) nonlinear equations with MATLAB and SIMULINK. The equations are solved to compute the flight path within 100 seconds of Boeing 747 at three flight conditions, for cruise flight with different Mach numbers at same altitudes, and then Mach number at high altitude with MATLAB programming (ode45). Simulation results for different conditions are presented and analyzed.

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50

Kumar, Ashish, Sugjoon Yoon e V. R. Sanal Kumar. "Mixed Reality Simulation of High-Endurance Unmanned Aerial Vehicle with Dual-Head Electromagnetic Propulsion Devices for Earth and Other Planetary Explorations". Applied Sciences 10, n. 11 (28 maggio 2020): 3736. http://dx.doi.org/10.3390/app10113736.

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Abstract (sommario):

One of the major limitations of existing unmanned aerial vehicles is limited flight endurance. In this study, we designed an innovative uninterrupted electromagnetic propulsion device for high-endurance missions of a quadcopter drone for the lucrative exploration of earth and other planets with atmospheres. As an airborne platform, this device could achieve scientific objectives better than state-of-the-art revolving spacecraft and walking robots, without any terrain limitation. We developed a mixed reality simulation based on a quadcopter drone and an X-Plane flight simulator. A computer with the X-Plane flight simulator represented the virtual part, and a real quadcopter operating within an airfield represented the real part. In the first phase of our study, we developed a connection interface between the X-Plane flight simulator and the quadcopter ground control station in MATLAB. The experimental results generated from the Earth’s atmosphere show that the flight data from the real and the virtual quadcopters are precise and very close to the prescribed target. The proof-of-concept of the mixed reality simulation of the quadcopter at the Earth atmosphere was verified and validated through several experimental flights of the F450 spider quadcopter with a Pixhawk flight controller with the restricted endurance at the airfield location of Hangang Drone Park in Seoul, South Korea. We concluded that the new generation drones integrated with lightweight electromagnetic propulsion devices are a viable option for achieving unrestricted flight endurance with improved payload capability for Earth and other planetary explorations with the aid of mixed reality simulation to meet the mission flight path demands. This study provides insight into mixed reality simulation aiming for Mars explorations and high-endurance missions in the Earth’s atmosphere with credibility using quadcopter drones regulated by dual-head electromagnetic propulsion devices.

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