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Technical Paper

Airship Autopilot Design

2011-10-18
2011-01-2736
In this paper a control system design for robotic airship is developed. The nonlinear multilinked mathematic model of airship is considered. The results of aerodynamic analysis, parametric and structure disturbances estimation, nonlinear control algorithms are presented. Airship motion simulator is developed and successfully applied. Airship is implemented on experimental robotic mini-airship.
Technical Paper

Impact of the Feeder Aerodynamics Characteristics on the Power of Control Actions in Steady and Transient Regimes

2012-10-22
2012-01-2112
In this paper we consider one of the problems in the development of control system for the feeder for MAAT transportation system. This problem is connected with estimation of inboard energy requirements. Traditionally such estimation is made on the basis of static relations. They allow assessing the power required to move a solid body with a constant air speed. However a contribution from aerodynamic forces and moments can vary depending on a regime of motion (value of linear and angular accelerations, angle of attack, etc). Because of that fact, this work investigates the estimation of the total required inboard energy and contribution of aerodynamic forces and moments to it in specified feeder motion regimes. The method of assessment is based on the feeder model, which is built on the equations of the rigid body. This paper contains general structure of feeder mathematical model, which includes equations of statics, dynamics and control mechanisms.
Technical Paper

Methods of Statistical Processing of Meteorological Data for the Tasks of Trajectory Planning of MAAT Feeders

2013-09-17
2013-01-2266
Problems of mathematical description and modeling of aerostatic vehicles are considered in the paper. Task of regression recovery of blank numbers with thermodynamic parameters is stated. Solve of stated task 2 regression models, describing how altitude depends on pressure and temperature for 2 layers: tropospheric (0 - 11 km) and lower stratospheric (11 - 20 km). The main result of research is development of mathematical, algorithmic and software solutions for the task of planning of energy-efficient trajectories. Developed models will allow development of dynamic models of atmosphere for aerostatic vehicles.
Technical Paper

Method of Docking for Stratospheric Airships of Multibody Transportation System

2014-09-16
2014-01-2162
The paper describes methods for control of docking of two moving stratospheric airships. One of them (cruiser) implements cruising flight at the defined altitude with defined velocity. The other one (feeder) fulfills the mission of chasing the cruiser with following docking operations. Mathematical model of exact airships are used in the work. Instances of structural and algorithmic implementation are based on position-trajectory controller. Simulation of docking control was accomplished with proposed methods.
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