TY - JOUR ID - 51601 TI - Trim and Maneuverability Analysis Using a New Constrained PSO Approach of a UAV JO - Journal of Aerospace Science and Technology JA - JAST LA - en SN - 1735-2134 AU - Karimi, Jalal AU - Dr. Pourtakdoust, Seid H. AU - Nobahari, Hadi AD - Sharif unversity of technology AD - Sharif Univ. of Tech. Y1 - 2011 PY - 2011 VL - 8 IS - 1 SP - 45 EP - 56 KW - Flight envelope KW - Trim-ability KW - maneuverability KW - constrained optimization KW - Particle Swarm Optimization DO - N2 - Performance characteristic of an Unmanned Air Vehicle (UAV) is investigated using a newly developed heuristic approach. Almost all flight phases of any air vehicle can be categorized into trim and maneuvering flights. In this paper, a new envelope called trim-ability envelope, is introduced and sketched within the conventional flight envelope for a small UAV. Optimal maneuverability of the intended UAV is evaluated for minimum time pull-up and turn maneuvers. For both the trim and the maneuver problems, the nonlinear 6DOF dynamic models as well as the vehicle constraints are considered. A heuristic based constrained optimization approach is developed to solve both the trim and maneuver problems. Several interesting performance characteristics are extracted. The results are indicative of a good potential for the proposed algorithm to handle complex constrained optimization problems in aerospace engineering . UR - https://jast.ias.ir/article_51601.html L1 - https://jast.ias.ir/article_51601_4e23c6ade251f817be083e468fb554ce.pdf ER -