scholarly journals Choice of the optimal mode of control of the process of emergency landing of an unmanned quadcopter

Author(s):  
Bohdan Blahitko ◽  
Yuriy Mochulsky ◽  
Ihor Zayachuk

Peculiarities of the process of emergency landing of an unmanned quadcopter have been studied by mathematical modeling. The method of landing an unmanned quadcopter in case of failure of one of the four pairs of electric motor-propeller is proposed. The basis of this technique is the application of the parachuting effect. Parachuting is achieved by forcibly turning off the power of the motor, which is located at the opposite end of the same traverse as the faulty motor. As a result, the vertical speed of the unmanned quadcopter at the time of landing is significantly reduced and approaches a relatively safe value.

Author(s):  
Bohdan Blagitko ◽  
Yuriy Mochulsky

By means of mathematical modelling, the main features of emergency landing of quadrocopter are determined. The results of simulate landings of the quadrocopter in cases of failure of one of four pairs of electric motor screw are given. The methods of safe landing of an unmanned quadrocopter in case of failure of one of four pairs of motor-screw are proposed. The basis of the proposed methods is to use a parachuting effect. Parachuting achieved by forced off the power of the motor, which is located at the opposite end of the same yoke as faulty motor. As a result, the vertical speed of the quadrocopter at the time of landing significantly decreases in comparison with the speed of free fall.


Author(s):  
Bogdan Blahitko ◽  
Yuriyi Mochulsky ◽  
Ihor Zaiachuk

The necessity of analyzing and modeling process of the emergency landing unmanned quadrocopter is described. Through mathematical modeling the basic features of landing unmanned quadrocopter are considered. The methods of safe landing of an unmanned quadrocopter in case of failure of one of four pairs of motor-screw are proposed. The basis of the proposed methods is to use a parachuting effect. Parachuting achieved by forced off the power of the motor, which is located at the opposite end of the same yoke as faulty motor As a result, quadrocopter vertical speed at the time of landing is reduced significantly and is approaching a relatively safe value.


2020 ◽  
Vol 329 ◽  
pp. 01019
Author(s):  
Kirill Evseev ◽  
Alexey Dyakov ◽  
Ksenia Popova

The article presents the results of a comparative tests and mathematical modeling for the selection of various units and assemblies of motor vehicles. These results were analyzed for optimal power plant and transmission selection, followed by improvements to develop a vehicle with an up to date electromechanical transmission. The article substantiates the choice of components and assemblies for a 4x4 ATV with an electromechanical transmission.


2020 ◽  
Vol 0 (93) ◽  
pp. 33-42
Author(s):  
Victor Kurgan ◽  
Ihor Sydorenko ◽  
Volodymyr Litvinov ◽  
Vladyslav Vaysman ◽  
Kateryna Kirkopulo ◽  
...  

Author(s):  
Ayman Al-Rawashdeh

Great efforts are directed to word the use of electrical vehicles in transportation. Mathematical modeling tools can provide a powerful approach for investigating electrical vehciles and are successfully implemented by applying Matlab/Simulink. In this paper, the mathematical simulation model of Series Excited DC motor (tractive motor) on Matlab/Simulink was implemented and investigated. The main objective of this study is to assess the use of Series Excited DC motor (tractive motor) to be used for the new Amman city express bus project and evaluation of its performance characteristics in different running and loading cases. All simulation results are plotted and discussed. This study confirms the feasibility for the use of series excited DC motor (tractive motor) in electric buses as alternatives for sustaibale and environmentally friendly transportation system.


Author(s):  
Kirill Goncharov

A method of mathematical synthesis of the equations of the mechanical characteristics of an electric motor with a phase rotor, corresponding to various resistance steps in the rotor circuit and approximated by straight lines, when simulating the unsteady movement of the mechanisms of hoisting-and-transport machines, is presented.


1891 ◽  
Vol 31 (783supp) ◽  
pp. 12510-12511
Author(s):  
George M. Hopkins
Keyword(s):  

1913 ◽  
Vol 108 (1) ◽  
pp. 11-11
Author(s):  
H. B. Dailey
Keyword(s):  

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