METHOD FOR TESTING CENTRAL PART OF FUSELAGE OF LIGHT HELICOPTER Russian patent published in 2024 - IPC G01M5/00 B64C27/00 

FIELD: aviation.

SUBSTANCE: invention relates to aircraft engineering, particularly, to fatigue and re-static tests of light helicopter central fuselage. Method consists in the fact that the test specimen is fixed on the test bench by the rotor hub model in the position providing the horizontal orientation of the ceiling panel, and the loads are applied, which are set block-by-block during transition from sub-unit, simulating cyclic loading "ground-air-ground", to sub-unit simulating multi-cycle flight loading, test specimen is dismantled and fixed to the lower panel in the zone of the door opening, in the zone of the rear compartment and to the frame, on which the joint of the rear compartment with the tail beam takes place, applying loads corresponding to this sub-unit, passing to the next unit and carrying out this process with the whole number of its sub-units, successively performing the process for all units, then the specimen is loaded once with a multi-cycle load.

EFFECT: determination of fuselage resource capabilities by determining the number of fuselage loading cycles until destruction or confirmation of the absence of fuselage destruction at a given number of loading cycles.

1 cl, 6 dwg, 4 tbl