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Pavel, M.D. (author), Ionita, A (author)The main objective of this paper is to give a basic understanding of the mechanisms through which pilot cyclic inputs in lateral cyclic interacts with high-order rotor dynamics destabilizing the helicopter roll motion. The paper will use a “Newtonian formulation” representing the main forces acting on the airframe body-rotor system as the pilot...journal article 2018
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Visingardi, Antonio (author), Pavel, M.D. (author)The present paper illustrates the outcomes of a research activity carried out by CIRA and the Delft University of Technology in the framework of the GARTEUR HC/AG-23 action group. This activity has been aimed at investigating,<br/>from the aerodynamic and handling qualities point of view, the problem of a Bo105 helicopter rotor crossing, in low...conference paper 2018
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Vidyarthi, K. (author), Beuker, Mathijs (author), Yin, F. (author), Voskuijl, M. (author), Pavel, M.D. (author)The SABRE project has been initiated under the EU’s Horizon 2020 programme for development of blade morphing technologies for helicopter rotors. The project targets reductions in fuel burn and NOx emissions of upto 5-10% through the use of morphing rotor blades. A new design tool for rotorcraft, HOPLITE, is being developed to investigate the...conference paper 2018
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Bakker, Richard (author), Visingardi, Antonio (author), van der Wall, Berend G. (author), Voutsinas, Spyros (author), Basset, Pierre-Marie (author), Campagnolo, Filippo (author), Pavel, M.D. (author), Barakos, George (author), White, Mark (author)The effects of a wind turbine wake on General Aviation and the behaviour of helicopters in the tip vortex of large fixed-wing aircraft has been topic of research in the past years, but less is known about the interactions of helicopters operating in a wind turbine wake. A dedicated GARTEUR Action Group, HC-AG23, consisting of European...conference paper 2018
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Quaranta, Giuseppe (author), Pavel, M.D. (author), Barakos, George (author), White, Mark (author), Mulder, Max (author)Helicopters are currently used in important applications providing a valuable contribution to society and economic growth. Thanks to their operational flexibility it is possible to accomplish increasingly complex missions. If the expansion of the usage of rotorcraft is to follow the pace of growth achieved by the fixed-wing public transport...journal article 2018
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Scaramuzzino, Paolo Francesco (author), D’Intino, Giulia (author), Geluardi, Stefano (author), Pavel, M.D. (author), Pool, D.M. (author), Stroosma, O. (author), Mulder, Max (author), Bülthoff, Heinrich H. (author)Today, simulators are achieving levels of complexity and cost that are comparable to those of the aircraft they should replace. For this reason, questions have been raised, in both the technical and training communities, on the required level of simulation 1delity for effective pilot training. Computer Based Trainers (CBTs) are not currently...conference paper 2018
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Eigenmode Distortion as a Novel Criterion for Motion Cueing Fidelity in Rotorcraft Flight SimulationMiletović, I. (author), Pavel, M.D. (author), Stroosma, O. (author), Pool, D.M. (author), van Paassen, M.M. (author), Wentink, Mark (author), Mulder, Max (author)Eigenmode distortion (EMD) is a novel methodology developed to study the degradation of perceived vehicle dynamics as a result of motion cueing algorithms (MCA’s) applied in rotorcraft 2ight simulators. This paper brie2y introduces EMD and subsequently describes its application in a pilot-in-the-loop experiment conducted on the SIMONA Research...conference paper 2018
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Dalmeijer, W. (author), Miletović, I. (author), Stroosma, O. (author), Pavel, M.D. (author)<br/>conference paper 2017
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Miletović, I. (author), Pool, D.M. (author), Stroosma, O. (author), Pavel, M.D. (author), Wentink, M (author), Mulder, Max (author)The fidelity of a rotorcraft flight simulator is influenced by many factors, such as the vehicle dynamic model and the motion cueing algorithm (MCA). To quantify the fidelity of a simulator objectively requires detailed knowledge of human pilot perception and control behaviour that is not yet available. As a consequence, subjective...conference paper 2017
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Arush, Ilan (author), Pavel, M.D. (author)Helicopter performance relies heavily on the available output power of the engine(s) installed. A simplistic single-variable analysis approach is often used within the flight-testing community to reduce raw flight-test data in order to predict the available output power under different atmospheric conditions. This simplistic analysis approach...journal article 2017
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Wan, J. (author), Pavel, M.D. (author)The Ornicopter concept is a single-rotor, tailless configuration. By actively flapping its blades, the Ornicopter rotor can propel itself to rotate, and hence does not need a tail rotor. In previous research, the Ornicopter concept has been compared with the Bo-105 conventional helicopter from various aspects, while the Ornicopter has the same...journal article 2016
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Tod, G. (author), Pavel, M.D. (author), Malburet, F (author), Gomand, J (author), Barre, PJ (author)The paper reassesses the mechanism of biodynamical feedthrough coupling to helicopter body motion in lateral-roll helicopter tasks. An analytical bio-aeroelastic pilot–vehicle model is first developed and tested for various pilot’s neuromuscular adaptions in the lateral/roll axis helicopter tasks. The results demonstrate that pilot can...journal article 2016
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Dieterich, O. (author), Pavel, M.D. (author)For augmented helicopters with modern flight control systems, unintended and unexpected oscillations or divergences of the pilot-rotorcraft system have become an increasingly critical issue. Especially the rapid advances in the field of high response actuation and highly augmented flight control systems have increased the sensitivity to aspects...conference paper 2015
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Gori, R. (author), Gennaretti, M. (author), Pavel, M.D. (author), Stroosma, O. (author), Miletovic, I. (author)Among the many fundamental components of a flight simulator, the mathematical representation of the vehicle dynamics stands out for complexity and importance. This is especially true for helicopters, for which the complex dynamics involved prevents simple models to be sufficiently accurate without the need of a certain amount of artificial...conference paper 2015
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- Pavel, M.D. (author) book chapter 2012
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- Pavel, M.D. (author) book chapter 2011
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- Pavel, M.D. (author) conference paper 2011
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Pereira, R. (author), Schepers, G. (author), Pavel, M.D. (author)The aim of this study is to assess the load predicting capability of a classical Beddoes-Leishman dynamic stall model in a horizontal axis wind turbine (HAWT) environment, in the presence of yaw-misalignment. The dynamic stall model was tailored to the HAWT environment, and validated against unsteady thick airfoil data. Subsequently, the dynamic...conference paper 2011
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- Brinkerink, N. (author), Pavel, M.D. (author) conference paper 2008
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- Pavel, M.D. (author), Padfield, G.D. (author) conference paper 2008