International Scientific Journals
of Scientific Technical Union of Mechanical Engineering "Industry 4.0"

The question of application of unmanned aerial vehicles (quadrocopters or multicopters) with electric drive for long-term monitoring operations in territories with operating power system or electrified railroad transportation is considered. The disadvantage of drones of this type is the limited capacity of the on-board battery, which implies the need to recharge it, i.e. to stop the flight and return the aircraft to the base. The authors propose a constructive solution to this problem, which is based on a non-contact (induction) method of charging during the flight of an aircraft due to the energy of the electromagnetic field arising from the flow of electric current in the highvoltage wires of the power system or the contact network of railroads. For this purpose, an additional circular electric winding is installed on board the aircraft, in which an electromotive force (EMF) is induced in the electromagnetic field during flight. This EMF is used to charge the battery of the unmanned aerial vehicle. Also, in the proposed design of the unmanned aerial vehicle, solar panels are provided for recharging the batteries during the flight during daylight hours.

The possibility of control of efficiency of different factors of high voltage electric discharge (HVED) impact on Ti – Al – С powders system for aimed synthesis of dispersion-hardening components is shown. Nanolaminate-composite Ti₃AlC₂ – TiC with hardness of HV5 = 7 GPa, obtained by consolidation of blend of 85 % Ti + 15 % Al initial composition after HVED with the use of multi-point electrode system has needle structure of Ti₃AlC₂ (a = 0.3068 nm, c = 1.844 nm) with size up to 10 μm, and TiC dispersion-hardening phase (a = c = 4.4331 nm) with particle size no more than 1 μm is situated between grains of Ti₃AlC₂. Dynamic strength of specimens depending on electrode system used during HVED treatment of blend variated in range from 160 to 620 MPa, Young modulus – from 13 to 22 GPa at deformation rate from 600 to 900 s–1. Material has high levels of heat resistance, relative change of mass is no more, than 0.001.