Construction and Experimental Research of the System for Measurement of the Wind Vector Parameters in the Starting, Take-off and Landing Modes of a Helicopter

Abstract

In order to ensure safe operation of a helicopter in a parking lot before the start of its power plant and promotion of the main rotor when taxiing and maneuvering on the earth's surface (the starting mode), at the stages of take-off, lowering, hovering and landing (take-off and landing modes), the crew needs reliable information about the current velocity and direction angle of the wind vector in relation to the longitudinal axis of the helicopter. However, if we set the known measurement of the wind vector on board of a helicopter, the inductive flows have a significant impact on the work of the vortex column of the main rotor, which limits the ability to measure. The authors consider the potential of the use for the purposes of measurement of the information aerodynamic field of the vortex column of the main rotor and its perception using the stationary multifunctional receiver. They also consider the theoretical basis for the formation and perception of the velocity of the resulting air flow of the vortex column of the main rotor by using a multifunctional aerometric receiver, functional diagram of the system and the algorithms for determination of the parameters of the wind vector in the take-off and landing modes of a helicopter. The methodology and the results of development and testing of the experimental model of the system for measurement of the wind vector in a wind tunnel are presented.