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Showing 1 to 17 of 17 for “"Flight dynamic"”.
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Flapping Wing Flight Dynamic Modeling
Highly agile, hover capable flapping wing flight is a relatively new area of study in engineering. Researchers are looking to flapping flight as a potential source for the next generation of reconnaissance and surveillance vehicles. These systems involve highly complicated physics surrounding the …
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Nocturnal Flight: Dynamic Imagination in architecture
… of Movement." by Gaston Bachelard (1884-1962). Dynamic Imagination was the key to my exploration. I dreamed and flew through the air with his poems and ideas.Watercolor was the main media I used to explore the moments of understanding between Bachelard and myself. Drawings and images from Bruno …
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Flight Dynamic Constraints in Conceptual Aircraft Multidisciplinary Analysis and Design Optimization
… approach, is developed to include closed-loop dynamic performance metrics in the design optimization process. The VCFQ approach overcomes the limitations of previous methods in the literature, which only functioned for fully decoupled systems with single inputs to the system. Translation of the …
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The development of a fixed wing aircraft analysis and design flight dynamic software
… on the development of computer software for flight dynamic analysis and controlling the behavior of a fixed-wing aircraft. For a given aircraft geometry, mass and inertia properties, and flight conditions, the software was designed in such a way to start the estimation of aerodynamic …
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Identification of Unsteady Flight Dynamic Models and Model-based Wind Estimation with Flight Test Validation
… a drone's operational measurements with a flight dynamic model can be used to infer wind without a dedicated wind sensor, although the sensor quality affects measurement accuracy. Previous studies have explored the effects of various sensors on wind estimate accuracy, but the effect of …
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Nonlinear Observers for Aircraft Maneuvering in Wind
… rigorous stability guarantees across the full flight envelope --- a major limitation for safety-critical aerospace applications. This dissertation addresses these gaps by advancing nonlinear observer design and flight dynamic modeling to estimate wind from aircraft motion with assured …
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Low-Cost Wearable Head-Up Display for Flight General Aviation
… designed, successfully reduced to practice, and flight tested. The system is developed based on the need for a technology that improves loss-of-control (LOC) safety in the General Aviation (GA) sector. The accuracy of the flight-path based system is determined to be within a degree of the truth …
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The development, optimisation and testing of an unmanned parafoil launch system
… an autonomous navigation system a suitable dynamic model of the parafoil with suspended payload is required to determine the parameters and characteristics of the system in free flight. Flexible ram-air inflated parafoils display high sensitivity to atmospheric disturbances which complicates …
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Towards Detecting Atmospheric Coherent Structures using Small Fixed-Wing Unmanned Aircraft
… inherently depends on high quality models, a Flight Dynamic Model (FDM) suitable for a small fixed-wing aircraft in turbulent wind is derived in detail. In this presentation, some new theoretical concepts are introduced concerning the proper treatment of spatial wind gradients, and a critical …
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Investigating Aerodynamic Coefficients and Stability Derivatives for Truss-Braced Wing Aircraft Using OpenVSP
… with the aim to improve the structural and aerodynamic performance by implementing advanced technologies. Aerodynamics is a major factor influencing the performance of the aircraft, affecting the fuel consumption and emissions, especially due to drag. The multidisciplinary design optimization …
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Propeller whirl flutter analysis of the nasa all-electric X-57 through multibody dynamics simulations
… influences the design of the vehicle. Multibody dynamics analysis (MBD) is used for this study, Dymore, with correlating data from CAMRAD II given by NASA. Along with numerous studies of the X-57 using these MBDs, two cases are presented for validating the use of multibody dynamics: a Goland wing …
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Flight Dynamics and Control of Highly Flexible Flying-Wings
… to significant static aeroelastic deformation in flight, and coupling between aeroelasticity and flight dynamics. As a result of this coupling, an integrated model of the aeroelasticity and flight dynamics has to be used to accurately model the dynamics of the flexible flying wing. Such an …
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Modeling and Scaling of a Flexible Subscale Aircraft for Flight Control Development and Testing in the Presence of Aeroservoelastic Interactions
… interaction of an aircraft's structure and the flight dynamics can degrade the performance of a controller designed only considering the rigid body flight dynamics. These concerns are greater for the next generation adaptive controls. These interactions lead to an increase in the tracking error, …
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A Low-Cost Unmanned Aerial Vehicle Research Platform: Development, Modeling and Advanced Control Implementation
… it is important to derive an appropriate flight dynamic model of the platform, based on which the controllers will be synthesized. For that matter, reasonably accurate models of the vehicle, servo motors and propulsion system are developed. Namely, the output error method is used to …
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Unsteady Nonlinear Aerodynamic Modeling and Applications
Unsteady aerodynamic modeling is indispensable in the design process of rotary air vehicles, flapping flight and agile unmanned aerial vehicles. Undesirable vibrations can cause high-frequency variations in motion variables whose effects cannot be well predicted using quasi-steady aerodynamics. …
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Neuroinspired control strategies with applications to flapping flight
… pattern generators (CPGs) to control flapping-flight dynamics. The key idea here is dimensional reduction - we want to convert complicated interactions of many degrees of freedom into a handful of parameters which have intuitive connections to the overall system behavior, leaving the control …
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Mathematical modelling of tilt-rotor aircraft configurations. A comprehensive model for flight control system development and real-time piloted simulation.
L'abstract è presente nell'allegato / the abstract is in the attachment