Flapping Wing Vehicles
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Flapping Wing Vehicles
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Author : Lung-Jieh Yang
language : en
Publisher: CRC Press
Release Date : 2021-09-30
Flapping Wing Vehicles written by Lung-Jieh Yang and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-09-30 with Technology & Engineering categories.
Flapping wing vehicles (FWVs) have unique flight characteristics and the successful flight of such a vehicle depends upon efficient design of the flapping mechanisms while keeping the minimum weight of the structure. Flapping Wing Vehicles: Numerical and Experimental Approach discusses design and kinematic analysis of various flapping wing mechanisms, measurement of flap angle/flapping frequency, and computational fluid dynamic analysis of motion characteristics including manufacturing techniques. The book also includes wind tunnel experiments, high-speed photographic analysis of aerodynamic performance, soap film visualization of 3D down washing, studies on the effect of wing rotation, figure-of-eight motion characteristics, and more. Features Covers all aspects of FWVs needed to design one and understand how and why it flies Explains related engineering practices including flapping mechanism design, kinematic analysis, materials, manufacturing, and aerodynamic performance measures using wind tunnel experiments Includes CFD analysis of 3D wing profile, formation flight of FWVs, and soap film visualization of flapping wings Discusses dynamics and image-based control of a group of ornithopters Explores indigenous PCB design for achieving altitude and attitude control This book is aimed at researchers and graduate students in mechatronics, materials, aerodynamics, robotics, biomimetics, vehicle design and MAV/UAV.
Fixed And Flapping Wing Aerodynamics For Micro Air Vehicle Applications
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Author : Thomas J. Mueller
language : en
Publisher: AIAA
Release Date : 2001
Fixed And Flapping Wing Aerodynamics For Micro Air Vehicle Applications written by Thomas J. Mueller and has been published by AIAA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Aerodynamics categories.
This title reports on the latest research in the area of aerodynamic efficency of various fixed-wing, flapping wing, and rotary wing concepts. It presents the progress made by over fifty active researchers in the field.
An Introduction To Flapping Wing Aerodynamics
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Author : Wei Shyy
language : en
Publisher: Cambridge University Press
Release Date : 2013-08-19
An Introduction To Flapping Wing Aerodynamics written by Wei Shyy and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-08-19 with Science categories.
For anyone interested in the aerodynamics, structural dynamics and flight dynamics of small birds, bats, insects and air vehicles (MAVs).
The Development Of A Miniature Flexible Flapping Wing Mechanism For Use In A Robotic Air Vehicle
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Author : Gautam Jadhav
language : en
Publisher:
Release Date : 2007
The Development Of A Miniature Flexible Flapping Wing Mechanism For Use In A Robotic Air Vehicle written by Gautam Jadhav and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Aerofoils categories.
In this study a mechanism which produced flapping and pitching motions was designed and fabricated. These motions were produced by using a single electric motor and by exploiting flexible structures. The aerodynamic forces generated by flexible membrane wings were measured using a two degree of freedom force balance. This force balance measured the aerodynamic forces of lift and thrust. Two sets of wings with varying flexibility were made. Lift and thrust measurements were acquired as the mechanism flapped the wings in a total of thirteen cases. These thirteen cases consisted of zero velocity free stream conditions as well as forward flight conditions of five meters per second. In addition, flapping frequency was varied from two Hertz to four Hertz, while angle of attack offsets varied from zero degrees to fifteen degrees. The four most interesting conditions for both sets of wings were explored in more detail. For each of these conditions, high-speed video of the flapping wing was taken. The images from the video were also correlated with cycle averaged aerodynamic forces produced by the mechanism. Several observations were made regarding the behavior of flexible flapping wings that should aid in the design of future flexible flapping wing vehicles.
Design And Control Of Flapping Wing Micro Air Vehicles
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Author : Michael L. Anderson
language : en
Publisher:
Release Date : 2011
Design And Control Of Flapping Wing Micro Air Vehicles written by Michael L. Anderson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Micro air vehicles categories.
Development Design Manufacture And Test Of Flapping Wing Micro Aerial Vehicles
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Author : Todd J. Smith
language : en
Publisher:
Release Date : 2016
Development Design Manufacture And Test Of Flapping Wing Micro Aerial Vehicles written by Todd J. Smith and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with Mechanical engineering categories.
The field of Flapping Wing Micro Air Vehicles (FWMAV) has been of interest in recent years and as shown to have many aerodynamic principles unconventional to traditional aviation aerodynamics. In addition to traditional manufacturing techniques, MAVs have utilized techniques and machines that have gained significant interest and investment over the past decade, namely in additive manufacturing. This dissertation discusses the techniques used to manufacture and build a 30 gram-force (gf) model which approaches the lower limit allowed by current commercial off-the-shelf items. The vehicle utilizes a novel mechanism that minimizes traditional kinematic issues associated with four bar mechanisms for flapping wing vehicles. A kinematic reasoning for large amplitude flapping is demonstrated namely, by lowering the cycle averaged angular acceleration of the wings. The vehicle is tested for control authority and lift of the mechanism using three servo drives for wing manipulation. The study then discusses the wing design, manufacturing techniques and limitations involved with the wings for a FWMAV. A set of 17 different wings are tested for lift reaching lifts of 38 gf using the aforementioned vehicle design. The variation in wings spurs the investigation of the flow patterns generated by the flexible wings and its interactions for multiple flapping amplitudes. Phase-lock particle image velocimetry (PIV) is used to investigate the unsteady flows generated by the vehicle. A novel flow pattern is experimentally found, namely 2trailing edge vortex capture3 upon wing reversal for all three flapping amplitudes, alluding to a newly discovered addition to the lift enhancing effect of wake capture. This effect is believed to be a result of flexible wings and may provide lift enhancing characteristics to wake capture.
Stability Of A Flapping Wing Micro Air Vehicle
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Author : Marc Evan MacMaster
language : en
Publisher:
Release Date : 2001
Stability Of A Flapping Wing Micro Air Vehicle written by Marc Evan MacMaster and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with categories.
An experimental investigation into the stability of a flapping wing micro air vehicle was performed at the University of Toronto Institute for Aerospace Studies. A three-degree of freedom force balance was designed and constructed to measure the forces and moments exhibited by a set of flapping wings through 180° of rotation at varied free-stream velocities. The same apparatus was also used to test two tail configurations. A two-dimensional simulation program was written using MATLAB software to identify stable vehicle configurations at or near the hovering condition. A total of four case studies were performed, and each revealed the vehicle had inherent stability. The presence of a tail on the vehicle produced only marginal effects. Of crucial importance was the placement of the vehicle center of gravity with respect to the wings. A preferred distance of 3.5 cm from the c.g. to the leading edge of the wings allowed for stable flight under all cases studied.
The Aerodynamic And Structural Study Of Flapping Wing Vehicles
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Author : Liangchen Zhou
language : en
Publisher:
Release Date : 2013
The Aerodynamic And Structural Study Of Flapping Wing Vehicles written by Liangchen Zhou and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with categories.
Flapping Wing Propulsion For A Micro Air Vehicle
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Author : K. D. Jones
language : en
Publisher:
Release Date : 2000
Flapping Wing Propulsion For A Micro Air Vehicle written by K. D. Jones and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with categories.
An Experimental Investigation Of Flapping Wing Aerodynamics In Micro Air Vehicles
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Author : Christopher J. Bradshaw
language : en
Publisher:
Release Date : 2003-06-01
An Experimental Investigation Of Flapping Wing Aerodynamics In Micro Air Vehicles written by Christopher J. Bradshaw and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003-06-01 with categories.
Flapping-wing propulsion was studied experimentally through Laser Doppler Velocimetry. Measurements were both time-averaged and unsteady, and were conducted on a Micro- Air Vehicle (MAV) model developed at NPS by Professors Max Platzer and Kevin Jones. The objective of this work was to further understanding of the aerodynamics of flapping-wing propulsion. In specific, this study examined separation control on the leading fixed wing due to entrainment by the trailing flapping wings. Further, a study of wake topology examined differences between the optimal and off-optimal cases. Experimental studies took place in the NPS 5' x 5' low speed wind tunnel. The model was supported on a test stand and LDV measurements of the flow field were taken. Studies were made at varying freestream velocities, angles of attack, and flapping frequencies. The test stand was instrumented with force balances to show forces in both the streamwise and vertical directions.