This paper considers the problem of calculating flight time for unmanned aerial vehicles (UAVs) while incorporating flight dynamics in an operational field that contains obstacles. These flight time calculations can be used as parameter inputs in mission planning and dynamic reassignment problems. A network generation procedure is developed and pseudonodes are added into the network to include ...

The procedure presented within, considers the problem of calculating flight time for unmanned aerial vehicles (UAVs) while incorporating a subset of important flight dynamics characteristics in an operational field, which contains obstacles. These flight time calculations are parameter inputs in mission planning and dynamic reassignment problems. The addition of pseudonodes and the addition of ...

We have approached the problem of reverse-engineering the flight control mechanism of the fruit fly by studying the dynamics of the responses to a visual stimulus during takeoff. Building upon a prior framework [G. Card and M. Dickinson, J. Exp. Biol., vol. 211, pp. 341-353, 2008], we seek to understand the strategies employed by the animal to stabilize attitude and orientation during these eva...

Flight testing is the preferred means of obtaining accurate, locally linear, dynamic models of nonlinear aircraft dynamics. In this paper, decoupled longitudinal and lateral/directional linear dynamic models of an unmanned air vehicle are identified using the Observer/Kalman Filter Identification method. This method is a time-domain technique that identifies a discrete input-output mapping from...

Abstract: Development of a reliable high-performance helicopter-based unmanned aerial vehicle (UAV) requires an accurate and practical model of the vehicle dynamics. This report describes the process and results of the dynamic modeling of a model-scale unmanned helicopter (Yamaha R-50 with 10 ft rotor diameter) using system identification. A complete dynamic model was derived for both hover and...

This paper deals with the leader-follower formation control problem while communication constraint in data transmitting is considered. From a practical point of view, we study the case in which unmanned vehicles are subject to the limited sensing, and communication is of a particular interest. A three-dimensional formation flight of multi-unmanned aerial vehicles with leader-follower configurat...

Graphical User Interface for flight simulation of aircraft is developed to analyze the change in motion variables with respect to various longitudinal, lateral and directional control inputs. Effects of stability and control derivatives on motion variables are also studied using Graphical User Interface. Firstly, Non-linear six degrees of freedom equations of motion of airplane dynamics are sol...

Unmanned helicopters are increasingly popular platforms for unmanned aerial vehicles (UAVs). With the abilities such as hovering, taking off and landing vertically, unmanned helicopters extend the potential applications of UAVs. However, due to the complex mechanism and complicated aero-flow during flight, it is almost impossible to accurately model the dynamics of an unmanned helicopter in ful...

Knowledge of the effects of thermal conditions on animal movement and dispersal is necessary for a mechanistic understanding of the consequences of climate change and habitat fragmentation. In particular, the flight of ectothermic insects such as small butterflies is greatly influenced by ambient temperature. Here, variation in body temperature during flight is investigated in an ecological mod...