Comparative Analysis of Mission Simulation Methods for Evaluating Mission Performance of Unmanned Aerial Vehicles

2020 ◽  
Author(s):  
Tim Klaproth ◽  
Mirko Hornung
Keyword(s):  
Comparative Analysis ◽  
Unmanned Aerial Vehicles ◽  
Simulation Methods ◽  
Aerial Vehicles ◽  
Mission Simulation

Applications of the Flexible Wing Concept at Small Unmanned Aerial Vehicles

2012 ◽  
Vol 463-464 ◽  
pp. 1564-1567 ◽  
Author(s):  
Vasile Prisacariu ◽  
Mircea Boscoianu ◽  
Ionica Circiu ◽  
Cristea Gabriel Rau
Keyword(s):  
Comparative Analysis ◽  
Unmanned Aerial Vehicles ◽  
Rapid Development ◽  
Flexible Wing ◽  
Aerial Vehicles

Unmanned Aerial Vehicles have seen a rapid development due to increased miniaturisation of technology, and their multiple usages in both military and civilian fields, thus making this business very profitable. Although the small UAVs are high enabling capabilities, they are still single-role (one flight, one mission). The present paper will present a comparative analysis of the solutions on flexible wing concept and will analyze the possibilities to use the morphing concept at small UAVs.

scholarly journals SYSTEMS OF RADIO-ELECTRONIC FIGHT AGAINST PILOTLESS VEHICLES MULTIROTOR TYPE IN DISTRICTS OF CONDUCT BATTLE ACTIONS

2020 ◽  
pp. 44-53
Author(s):  
R. M. Oliinyk ◽  
S. V. Tsilyna ◽  
Y. M. Zhyvets ◽  
O. V. Yermolenko
Keyword(s):  
Comparative Analysis ◽  
Unmanned Aerial Vehicles ◽  
Armed Forces ◽  
Small Scale ◽  
Information Component ◽  
Air Defense ◽  
Aerial Vehicles ◽  
The World ◽  
Modern Warfare ◽  
Methods Of Control

In modern warfare, the information component is crucial for both sides of the conflict. Donetsk and Luhansk regions have become a kind of bridgehead for testing and application in the operation of unmanned aerial vehicles of various dimensions and functional purposes, the most common of which are small reconnaissance unmanned aerial vehicles. Dozens of enemy vehicles are gathering information about the location of the Ukrainian military. To date, no state is ready to withstand planned attacks by unmanned aerial vehicles. Traditional air defense weapons are designed for large and long-range targets, while the modern line of drones consists of nano-, micro- and mini-devices flying at low altitudes. A comparative analysis of modern means of counteracting unmanned aerial vehicles and conclusions about the possibility of their use in the Armed Forces of Ukraine. The newest means of destruction of unmanned aerial vehicles of the leading countries of the world are considered. The issue of the possibility of blocking the work of enemy drones is covered in zones (areas) of hostilities. Ways to increase the effectiveness of small - scale unmanned aerial vehicles are proposed. Priorities in the implementation of programs for the development of modern domestic means of destruction of unmanned aerial vehicles can be considered the use of means of interception or destruction by electronic countermeasures. The relevance of the study lies in the analysis of the main available methods of control with unmanned aerial vehicles, development of perspective approaches and acquaintance with modern achievements and directions of development of means of struggle against drones applied by the enemy.

scholarly journals Influence of wind disturbances and nonlinearities of servo drive on the contour of stabilization of the flight of height of unmanned aerial vehicle

2019 ◽  
pp. 23-30
Author(s):  
V. A. Malkin ◽  
I. V. Rozhkov ◽  
A. A. San’ko
Keyword(s):  
Mathematical Model ◽  
Comparative Analysis ◽  
Unmanned Aerial Vehicles ◽  
Control Systems ◽  
Velocity Vector ◽  
Flight Altitude ◽  
Servo Drive ◽  
Automatic Control Systems ◽  
Aerial Vehicles ◽  
Aerial Vehicle

The article discusses a mathematical model of wind, taking into account its stochastic component and wind of a steady direction, presents the results of a comparative analysis of the effect of wind parameters on the total wind velocity vector acting on unmanned aerial vehicles (UAV). The main non-line arities of the autopilot servo elements and their influence on the output signal are considered. The reaction of the contour of the UAV flight altitude stabilization to the wind is considered, taking into account the nonlinearity of the servo drive elements. Proved the need to take into account the wind in the synthesis of automatic control systems (ACS) and the contours of the angular stabilization of the drone at stages where the flight speed of the drone is less than 30 m / s.

scholarly journals Study of declination methods while forming the appearance of the surface-to-air unmanned aerial vehicle with a vertical start

2021 ◽  
Vol 24 (3) ◽  
pp. 57-70
Author(s):  
A. V. Vindeker
Keyword(s):  
Control System ◽  
Comparative Analysis ◽  
Unmanned Aerial Vehicles ◽  
Unmanned Aerial Vehicle ◽  
Thrust Vector Control ◽  
Gas Dynamic ◽  
Aerial Vehicles ◽  
Aerial Vehicle ◽  
Thrust Vector ◽  
Vector Control System

The problem of choosing a rational declination system from alternative variants at the stage of forming the appearance of an unmanned aerial vehicle (UAV) with a vertical launch is considered. Currently, the vertical launch is becoming more widely used for surface-to-air unmanned aerial vehicles, which are considered in this paper. A characteristic initial part of the trajectory of such unmanned aerial vehicles is the declination to the required angular position over a short period of time. The UAV declination process requires the generation of relatively large control moments. Declination of surface-to-air UAVs is implemented by means of moment gas-dynamic control with two main methods – by using the thrust vector control system of the UAV main jet engine or by using special additional gas-dynamic devices. The alternative variants of declination systems for solving the problem under consideration are:– a thrust vector control system with gas rudders installed in the UAV engine nozzle or just behind its cut-off on special pylons;– a pulse propulsion system that creates the UAV declination moment by means of jets of micro-thrusters, which are activated by a special algorithm.In the comparative analysis of declination systems, the criterion for choosing the correct method of declination was the actual near border of the affected zone. The mass minimum of the projected UAV is accepted as the criterion for choosing a rational variant of the declination system. The main relations for calculating the main design parameters of the considered declination systems are given. The appearance parameters of the hypothetical surface-to-air UAV of medium range with alternative declination systems were calculated. A comparative analysis of the results obtained was carried out.

scholarly journals Tracking of Unmanned Aerial Vehicles Using Computer Vision Methods: A Comparative Analysis

2020 ◽  
Vol 223 (4) ◽  
pp. 39-51
Author(s):  
Stanisław Hożyń ◽  
Miłosz Wierszyło
Keyword(s):  
Computer Vision ◽  
Comparative Analysis ◽  
Unmanned Aerial Vehicles ◽  
Acoustic Signals ◽  
Light Radiation ◽  
Radio Waves ◽  
Security Systems ◽  
Aerial Vehicles ◽  
Embedded Methods

Abstract Tracking of small objects in any given airspace is an integral part of modern security systems. In these systems, there are embedded methods that employ the techniques based on either radio waves, or acoustic signals, or light radiation. The computer vision operation, springing from the light radiation-based technique, has prompted interest in its research. This operation has the advantage of being less expensive than radars and acoustic systems. In addition, it can solve complex security problems by detecting and tracking humans, vehicles, and flying objects. Therefore, this article evaluates the usefulness of the varying computer vision algorithms for tracking of small flying objects.

Development of thickened semi-synthetic engine oil M-5z / 20 AERO for four-stroke gasoline engines aircraft piston of unmanned aerial vehicles (UAVs)

2020 ◽  
Vol 06 ◽  
pp. 44-47
Author(s):  
A.A. Moykin ◽  
◽  
A.S. Medzhibovsky ◽  
S.A. Kriushin ◽  
M.V. Seleznev ◽  
...  
Keyword(s):  
Unmanned Aerial Vehicles ◽  
Engine Oil ◽  
Motor Oil ◽  
Gasoline Engines ◽  
State Research Institute ◽  
Technical Requirements ◽  
Aerial Vehicles ◽  
State Research ◽  
Industrial Batch ◽  
The Russian Federation

Nowadays, the creation of remotely-piloted aerial vehicles for various purposes is regarded as one of the most relevant and promising trends of aircraft development. FAU "25 State Research Institute of Chemmotology of the Ministry of Defense of the Russian Federation" have studied the operation features of aircraft piston engines and developed technical requirements for motor oil for piston four-stroke UAV engines, as well as a new engine oil M-5z/20 AERO in cooperation with NPP KVALITET, LLC. Based on the complex of qualification tests, the stated operational properties of the experimental-industrial batch of M-5z/20 AERO oil are generally confirmed.

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