Keyword: «helicopter»

IMPROVEMENT ACTIVITIES HELICOPTER LIFTING DEVICES

Author:

Igor Zaicev

The article develops proposals for the constructive improvement of aircraft hydraulic lifting devices of the helicopter with synchronization of their operation.

Keywords: safety, helicopter, disadvantages, landing gear, hydraulic lift, rod bending, technical operation of aviation equipment

INTERACTION OF THE FLIGHT CREW WITH THE HELICOPTER'S AUTOMATIC CONTROL SYSTEM DURING THE IMPLEMENTATION OF AN ACTIVE FLIGHT SAFETY SYSTEM

Authors:

Ivan Chyprikov,

Andrei Golimgrein

The article discusses a proposal to introduce an on-board system of active flight safety on a helicopter in order to assist the crew in the event of special cases in flight.

Keywords: automatic control, helicopter, self-rotation of the main rotor, on-board system of active flight safety

From TV3-117 to VK-2500

Author:

Dmitrii Artamonov

The article discusses the TV3-117 and VK-2500 turboshaft engines currently used on Russian helicopters.

Keywords: engine, helicopter, aircraft power plant

FEATURES OF THE DESIGN OF THE DOORLESS TORSION SLEEVE OF THE DESCENDING VITA

Author:

Igor Zaicev

The article presents the main features of the design of a springless torsion sleeve of a load-bearing unit.

Keywords: helicopter, main rotor, sleeve, torsion bar

OPTIMIZATION OF HELICOPTER VERTICAL LIFT

Authors:

Feliks Dremov,

Edyard Marcinkevich,

Roman Gorunov

The article discusses the construction of a mathematical model for the time-optimal vertical lift of a helicopter. The solution is based on the maximum principle in the presence of restrictions on phase co-ordinates and control. To simplify the algorithm fordetermining optimal control, it is proposed to use a numerical optimization method.

Keywords: modeling, control, numerical method, helicopter, flight, maximum principle, limitations