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A Flight Mechanics-Centric Review of Bird-Scale Flapping Flight
Paranjape, Aditya A.,Dorothy, Michael R.,Chung, Soon-Jo,Lee, Ki-D. The Korean Society for Aeronautical and Space Scie 2012 International Journal of Aeronautical and Space Sc Vol.13 No.3
This paper reviews the flight mechanics and control of birds and bird-size aircraft. It is intended to fill a niche in the current survey literature which focuses primarily on the aerodynamics, flight dynamics and control of insect scale flight. We review the flight mechanics from first principles and summarize some recent results on the stability and control of birds and bird-scale aircraft. Birds spend a considerable portion of their flight in the gliding (i.e., non-flapping) phase. Therefore, we also review the stability and control of gliding flight, and particularly those aspects which are derived from the unique control features of birds.
Robotic Herding of a Flock of Birds Using an Unmanned Aerial Vehicle
Paranjape, Aditya A.,Chung, Soon-Jo,Kim, Kyunam,Shim, David Hyunchul IEEE 2018 IEEE TRANSACTIONS ON ROBOTICS Vol.34 No.4
<P>In this paper, we derive an algorithm for enabling a single robotic unmanned aerial vehicle to herd a flock of birds away from a designated volume of space, such as the air space around an airport. The herding algorithm, referred to as the <TEX>$m$</TEX>-waypoint algorithm, is designed using a dynamic model of bird flocking based on Reynolds’ rules. We derive bounds on its performance using a combination of reduced-order modeling of the flock's motion, heuristics, and rigorous analysis. A unique contribution of the paper is the experimental demonstration of several facets of the herding algorithm on flocks of live birds reacting to a robotic pursuer. The experiments allow us to estimate several parameters of the flocking model, and especially the interaction between the pursuer and the flock. The herding algorithm is also demonstrated using numerical simulations.</P>
A Flight Mechanics-Centric Review of Bird-Scale Flapping Flight
Aditya A. Paranjape,Michael R. Dorothy,Soon-Jo Chung,Ki D. Lee 한국항공우주학회 2012 International Journal of Aeronautical and Space Sc Vol.13 No.3
This paper reviews the flight mechanics and control of birds and bird-size aircraft. It is intended to fill a niche in the current survey literature which focuses primarily on the aerodynamics, flight dynamics and control of insect scale flight. We review the flight mechanics from first principles and summarize some recent results on the stability and control of birds and bird-scale aircraft. Birds spend a considerable portion of their flight in the gliding (i.e., non-flapping) phase. Therefore, we also review the stability and control of gliding flight, and particularly those aspects which are derived from the unique control features of birds.
Diganta Bhattacharjee,Aditya A. Paranjape,Rajkumar S. Pant 한국항공우주학회 2019 International Journal of Aeronautical and Space Sc Vol.20 No.3
This paper analyzes the effect of spanwise distribution of twist angle on the forces generated by flapping wings as well as the power requirements. We consider four sample profiles of the twist angle as a function of spanwise location, and compute the forces and power requirements under non-accelerating level flight conditions. We investigate three different wing geometries, with varying wingspan and aspect ratios. It has been found that for planforms with moderate to high wingspans, a quadratic profile performs better than the constant and linear ones; whereas for planforms with smaller wingspans, a linear profile performs better than the rest. The analysis presented in this paper can be used to identify the most suitable wing twist profile as a function of the flight parameters and can be used as the basis for wing morphing.