Results 31 to 40 of about 69,093 (209)
Robust multi-fidelity design of a micro re-entry unmanned space vehicle [PDF]
, 2011 This article addresses the preliminary robust design of a small-scale re-entry unmanned space vehicle by means of a hybrid optimization technique. The approach, developed in this article, closely couples an evolutionary multi-objective algorithm with a ...
Aupoix B. +9 more
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Quantification of airfoil geometry-induced aerodynamic uncertainties - comparison of approaches [PDF]
, 2016 Uncertainty quantification in aerodynamic simulations calls for efficient numerical methods since it is computationally expensive, especially for the uncertainties caused by random geometry variations which involve a large number of variables. This paper
Litvinenko, Alexander +3 more
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Multidisciplinary design of a micro-USV for re-entry operations [PDF]
, 2010 Unmanned Space Vehicles (USV) are seen as a test-bed for enabling technologies and as a carrier to deliver and return experiments to and from low-Earth orbit.
Liqiang, Hou +2 more
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Machine Learning Assisted Prediction of Airfoil Lift-to-Drag Characteristics for Mars Helicopter
Aerospace, 2023 The aerodynamic properties of rotor systems operating within low Reynolds number flow field conditions are profoundly influenced by their geometric and flight parameters.
Pengyue Zhao +5 more
doaj +1 more source
Robust aerodynamic design of variable speed wind turbine rotors [PDF]
, 2012 This study focuses on the robust aerodynamic design of the bladed rotor of small horizontal axis wind turbines. The optimization process also considers the effects of manufacturing and assembly tolerances on the yearly energy production.
Campobasso, Michele Sergio +2 more
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Evolutionary design of a full-envelope full-authority flight control system for an unstable high-performance aircraft [PDF]
, 2011 The use of an evolutionary algorithm in the framework of H1 control theory is being considered as a means for synthesizing controller gains that minimize a weighted combination of the infinite norm of the sensitivity function (for disturbance attenuation
Abzug M. J. +9 more
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A New Cokriging Method for Variable-Fidelity Surrogate Modeling of Aerodynamic Data [PDF]
, 2010 Cokriging is a statistical interpolation method for the enhanced prediction of a less intensively sampled primary variable of interest with assistance of intensively sampled auxiliary variables. In the geostatistics community it is referred to as two- or
Görtz, Stefan +2 more
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Xibei Gongye Daxue Xuebao, 2019 To deal with the problem of aerodynamic and stealth integrated optimization of DSI inlet, a multi-objective optimization study on aerodynamic and stealth of the DSI inlet is carry out which based on the deformation of the three-dimensional compression ...
doaj +1 more source
Aerospace, 2022 Current aerodynamic parameter identification methods take the consistency between the response of the motion model reconstructed with the identified aerodynamic parameters and flight data as an optimization index. Since there is only one index constraint
Lixin Wang, Rong Zhao, Yi Zhang
doaj +1 more source
Multi-objective optimization of a wing fence on an unmanned aerial vehicle using surrogate-derived gradients [PDF]
, 2020 In this paper, the multi-objective, multifidelity optimization of a wing fence on an unmanned aerial vehicle (UAV) near stall is presented. The UAV under consideration is characterized by a blended wing body (BWB), which increases its efficiency, and a ...
Couckuyt, Ivo +4 more
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