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Trajectory Optimization of a Dynamic Soaring UAV
Technical Paper
2016-01-1980
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This paper studies admissible state trajectories for an unmanned aerial vehicle(UAV) by performing dynamic soaring technique in the wind gradient. An optimization problem is formulated by employing direct optimal piece wise control. A 3-DOF point mass model system dynamics of UAV is considered. The bank angle and lift co-efficient are identified as control variables. A UAV of mass 5.44kg is considered for this study. Performance measures considered are maximization of specific energy and maximization of specific energy rate extracted by the vehicle, and minimization of the control effort. The effects of linear and parabolic wind gradient on maximizing the specific energy of an autonomous dynamic soaring UAV is also studied and minimum linear gradient required is found. The loop radius of the loiter pattern is maximized for applications like surveillance and patrolling of a localized area along with energy maximization as objective function. Genetic algorithm is used for optimization, since the initial feasible trajectory is difficult to get. The results of this study have a direct impact on the application of UAVs, both military and civilian, as a thrust-off situation could help in saving of fuel and thereby prolong duration of flight, extension of range, and endurance.
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Authors
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Citation
Rao, S. and M, D., "Trajectory Optimization of a Dynamic Soaring UAV," SAE Technical Paper 2016-01-1980, 2016, https://doi.org/10.4271/2016-01-1980.Also In
References
- Sachs. G. Minimum Shear Wind Strength Required for Dynamic Soaring of Albatrosses Ibis 147 2005 1 10
- Rayleigh , L. The Soaring of Birds, Nature 27 1883 534 535
- Lissaman , P. Wind energy extraction by birds and flight vehicles 43rd AIAA aerospace sciences meeting and exhibit 10-13 January 2005
- Gordon , R. J. Optimal Dynamic Soaring for Full Size Sailplanes Masters thesis Department of Aeronautical and Astronautical Engineering, Air Force Institute of Technology Wright-Patterson Air Force Base, Ohio September 2006
- Yiyuan j.Zhao Optimal patterns of glider dynamic soaring Dept.of aerospace engineering,University of minnesota, conference on optimal control applications and methods March 2004
- Langelaan Jack W. Long Distance/Duration Trajectory Optimization for Small UAVs Guidance, Navigation and Control Conference August 16-19 2007 Hilton Head, The Pennsylvania State University, South Carolina
- Nicholas R. J. Lawrance and Salah Sukkarieh A guidance and control strategy for dynamic soaring with a gliding UAV IEEE International Conference on Robotics and Automation Kobe International Conference Center Kobe Japan May 2009
- Akhtar , N. , Whidborne , J. F. , and Cooke , A. K. Wind Shear Extraction Using Dynamic Soaring Techniques AIAA Paper 2009-7734 2009
- Sukumar Pritam P. , Selig Michael S. Dynamic Soaring of Sailplanes over Open Fields 28th AIAA Applied Aerodynamics Conference AIAA 2010-4953 June-July 2010
- Grenestedt Joachim L. , Spletzer John R. Towards Perpetual Flight of a Gliding Unmanned Aerial Vehicle in the Jet Stream 49th IEEE Conference on Decision and Control December 15-17, 2010
- Randal Beard , Timothy Mclain small unmanned aircraft -theory and practice Princeton university press 2012
- Kirk Donald E. Optimal Control Theory an Introduction Prentice-Hall, Inc 1970
- Anderson John D. , Jr Introduction to flight Tata McGraw Hill Education Private Ltd. 6th 2008
- Nitin Murali , Dineshkumar M. , Arun kishore W.C. Parafoil Trajectory Comparison for Optimal Control and Proportional Controller International Conference on Control Communication and Computing (ICCC) 2013
- Athans M. and Falb P. L. Optimal Control, An Introduction to Theory and its Applications 3rd McGraw-Hill, Inc New York 1966
- Lawrance Nicholas R.J. Autonomous Soaring Flight for Unmanned Aerial Vehicles Ph.D. thesis University of Sydney March 2011
- Syama. M , Dineshkumar M. , Arun kishore W.C. Trajectory Optimization of an Autonomous Dynamic Soaring UAV International Conference on Control Communication and Computing (ICCC) 2015
- Syama. M , Dineshkumar M. , Arun kishore W.C. Trajectory Optimization for maximizing specific energy of a Dynamic Soaring UAV National Conference on Technological Trends (NCTT) 2015