AIRCRAFT STRENGTH TESTING METHOD AND DEVICE FOR REALISING SAID METHOD Russian patent published in 2010 - IPC G01M5/00 

FIELD: physics.

SUBSTANCE: method involves exposure of the tested aircraft to a periodic alternating load using force drivers and measurement of value of the obtained load using force sensors connected to a program device. The value and speed of the periodic alternating load is controlled by electric parametres transmitted to the electromechanical force drivers designed for converting the electrical signal into power linear displacement of the rods of the force drivers. The rate of increasing and reducing the load is controlled by electromechanical force drivers and frequency control stations controlled from the program device. When the test aircraft is reloaded, it is protected using rod position sensors fitted on the force drivers. The device has a lever system, force drivers connected to the structure of the test aircraft through the said lever system, a program device and force sensors and power supply units connected to the said program device. The force drivers are made in form of electromechanical drives containing ball screw assemblies with linear displacement of rods, position sensors with emergency set points, reduction gears, electric motors, as well as power supply units made in form of frequency control stations. The force sensors, the set point of the position sensors and the frequency control stations are connected to program devices.

EFFECT: more reliable testing, cutting on expenses for designing and operating the device for realising the said method.

2 cl, 1 dwg