منابع مشابه
Nonlinear Aeroelastic Analysis of Joined-wing Aircraft
Joined-wing aircraft are being designed for ‘sensorcraft’ configuration. Joined wings lead to multiple load paths and constraints. The focus of this work is to understand the nonlinear structural as well as aeroelastic behavior of joined wings. The paper presents a formulation for the nonlinear aeroelastic analysis of joined wings. Results are presented for two joined wings configurations. Over...
متن کاملElectric Propulsion Concepts for an Inverted Joined Wing Airplane Demonstrator
One of the airplane design concepts that potentially allows for significantly increased efficiency, but has not yet been investigated thoroughly, is the inverted joined wing configuration, where the upper wing is positioned in front of the lower one. We performed wind tunnel and flight testing of a demonstrator of this concept, first by applying electrical propulsion to simplify wind tunnel tes...
متن کاملExperiments in Fixed-Wing UAV Perching
High-precision maneuvers at high angles-of-attack are not properly addressed by even the most advanced aircraft control systems. Here we present our control design procedure and indoor experimental results with a small fixed-wing autonomous glider which is capable of executing an aggressive high angle-of-attack maneuver in order to land on a perch. We first acquire a surprisingly accurate aircr...
متن کاملPowerline Perching with a Fixed-Wing UAV
Small and micro UAVs have enabled a number of new mission capabilities, including navigating in and around buildings and performing perch-and-stare surveillance. However, one of the primary limitations of these small vehicles is endurance, simply because they cannot carry sufficient power for long missions. Recent advances in fixed-wing perching have made it possible to consider a new solution ...
متن کاملTrim and Maneuverability Analysis Using a New Constrained PSO Approach of a UAV
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 inte...
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ژورنال
عنوان ژورنال: International Journal of Research in Engineering and Technology
سال: 2013
ISSN: 2321-7308,2319-1163
DOI: 10.15623/ijret.2013.0211057