| 摘要 |
FIELD: physics, tests. ^ SUBSTANCE: invention relates to test equipment and can be used for testing the sections of the helicopter tail and hinged rotors and aircraft propellers for durability. The proposed test-stand comprises appliances to fasten and object to be tested incorporating two thrusts with hinges, vibrator, hydraulic servo drives to expand the object and to rotate the vibrator, oil pump station and computer. The said hydraulic servo drive selects the vibrator speed of rotation to set the required amplitude of vibrations of tested structure and, hence, the amplitude of marginal strains in the said section. ^ EFFECT: higher accuracy and reliability. ^ 1 dwg |
