THREE-COMPONENT SHAKE TABLE

摘要

FIELD: machine building. ^ SUBSTANCE: device consists of three platforms whereon there is arranged tested object and of system for excitation of oscillations; each platform is mounted to perform exclusively orthogonal travels relative to other two. The vibration exciter transmits oscillations to the platforms by means of articulated rods; the rods are attached to the platforms and the exciter by means of a gimbal suspension. The latter consists of a flange with a U-shaped lug fastened to the vibration exciter and of a cube positioned in the U-shaped lug of the flange; the cube has two mutually perpendicular couples of coaxial conic orifices. Entering the orifices screws with conic ends can be locked by means of check nuts. Also, length of the articulated rod at least 100 times exceeds amplitude of oscillations in orthogonal directions. ^ EFFECT: simplified design and increased accuracy of space oscillation reproduction. ^ 2 cl, 4 dwg