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Showing 1 to 20 of 36 for “"Micro Air Vehicles"”.
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Adaptive Control of Micro Air Vehicles
Although PID controllers work well on Miniature Air Vehicles (MAVs), they require tuning for each MAV. Also, they quickly lose performance in the presence of actuator failures or changes in the MAV dynamics. Adaptive control algorithms that self tune to each MAV and compensate for changes in the …
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Predicting Drag Polars For Micro Air Vehicles
<p> Drag polars for three Micro Air Vehicles (MAVs) were measured at Reynolds numbers of 70,000, 50,000, 30,000, and 10,000 and compared to predictions generated using the classical approach. The MAVs tested had different configurations and aspect ratios varying from 1.2 to 1.6 and ratios of wetted …
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RESILIENT STATE ESTIMATION FOR MICRO AIR VEHICLES UNDER SENSOR ATTACKS
… estimation and sensor fusion in an autonomous micro air vehicle. The setup comprises of redundant sensors that measure the same physical signal. An adversary may spoof a subset of these sensors and send falsified readings to the controller, potentially compromising performance and safety of the …
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On the Application of Rotating Cylinders to Micro Air Vehicles
… (0.15 m maximum dimension, 50 g weight) unmanned aircraft known as Micro Air Vehicles (MAV) has been carried out. It is hoped that such a design would be able to exploit the large lift generating properties of the rotating cylinder for the purposes of increasing the available payload weight. This …
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An Analytical Investigation of Flapping Wing Structures for Micro Air Vehicles
… of flapping wing structures for bio-inspired micro air vehicles is presented in this dissertation. Bio-inspired micro air vehicles (MAVs) are based on insects and hummingbirds. These animals have lightweight, flexible wings that undergo large deformations while flapping. Engineering studies …
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Experimental and computational analysis for insect inspired flapping wing micro air vehicles
… the aim of one day developing a Flapping Wing Micro Aerial Vehicle (FWMAV) which can replicate the flight of nature's creatures. These types of autonomous robotic vehicles can fulfil tasks which are not suitable for manned vehicles especially when risks to human safety are present. Flight …
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bio-inspired attitude control of micro air vehicles using rich information from airflow sensors
… and bats use their mechanoreceptors to sense the airflow information and use this information directly to achieve their agile flight performance. Inspired by this phenomenon, an attitude control system for micro air vehicles using rich amount of airflow sensor information is proposed, designed and …
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Design of an adaptive 3-dimensional display enabled by a swarm of autonomous micro air vehicles
… of a swarm of small, automatically controlled air vehicles, each carrying a colour-controlled light source (payload), capable of executing coordinated maneouvres for the purpose of entertainment or data visualization. It focuses on a number of issues associated with the implementation of such a …
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Design, Analysis, and Optimization of Vibrational Control Strategies
… is applied for altitude control of flapping wing micro-air vehicles by considering the sweeping (flapping) angle of the wings as the inputs. Using the feathering (pitch) angles of the wings as additional inputs, and using non-symmetric flapping, the control method is then extended for …
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Unsteady Aerodynamic and Aeroelastic Analysis of Flapping Flight
… from the challenges facing the development of micro air vehicles. Micro air vehicles by requirement are compact with dimensions less than 15-20 cm and flight speeds of around 10-15 m/s. These vehicles operate in low Reynolds number range of 10,000 to 100,000. At these low Reynolds numbers, the …
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Adaptive and Neural Network-Based Aircraft Tracking Control with Synthetic Jet Actuators
… can be used to achieve maneuvering control in aircraft by delivering controllable airflow perturbations near the wing surface. Trajectory tracking control design for aircraft equipped with SJA is particularly challenging, since the controlling actuator itself has an uncertain dynamic model. …
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Micro air vehicle control design : a comparison of classical and dynamic inversion techniques
Micro Air Vehicles (MAVs) are envisioned as autonomous aerial robots capable of flying into an urban environment to perform reconnaissance, targeting, and remote sensing. These vehicles are significantly smaller than current aircraft, with maximum dimensions of 15 centimeters, presenting challenges …
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Design of a flapping mechanism for reproducing the motions at the base of a dragonfly wing
… is being studied to aid in the development of micro-air vehicles that use the flapping wing model in an attempt to achieve the high levels of maneuverability that insects have. The flight of the dragonfly has been chosen to be modeled because of its exceptional flight capabilities. This thesis …
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Macro Fiber Composite Actuated Unmanned Air Vehicles: Design, Development, and Testing
… design and implementation of a morphing unmanned aircraft using smart materials is presented. Articulated lifting surfaces and articulated wing sections actuated by servos are difficult to instrument and fabricate in a repeatable fashion on thin, composite-wing micro-air-vehicles. Assembly is …
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Design, optimization and flight testing of a micro air vehicle
Micro Air Vehicles (MAVs) are a new type of aircraft maturing every year. The first mission-capable MAVs are already available on the market. Similarly to larger UAVs, MAVs may be used in a variety of applications, both military and civilian, such as situational awareness, reconnaissance, data …
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A 1-mW vibration energy harvesting system for moth flight-control applications
… to specific locations in real time. As in all micro-air vehicles, power is one of the major concerns. A power source on the moth is required to support the flight control and wireless communication systems. There are two methods by which these payloads might be powered. The first method is to …
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Electrospinning as a Processing Method for Electroactive Polymers and Composites
… in aerospace and biomedical applications such as micro-air vehicles and the cardiovascular system. Electrospun Graft Elastomers demonstrated potential as actuators, as electromechanical strain testing showed comparable response to the film form of this material. Further improvement of …
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Measurement of aerodynamic characteristics of MAVs using motion tracking
Aerodynamic characteristics of Micro Air Vehicles (MAVs) is not well addressed in aeronautics literature, and more experimental data are required to help better understand the behavior of fixed-wing MAVs. In the current research, aerodynamic and stability characteristics of two MAVs were measured …
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Modeling Energy Harvesting From Membrane Vibrations using Multi-physics Modeling
… include powering components of bio-inspired micro air vehicles (MAVs), which require long range with as little regular maintenance as possible, and powering sensors for structural health monitoring on otherwise inaccessible locations (the roof of the Denver Int'l Airport is a good example). …
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