BED TESTING ARTICLES FOR ACTION OF ACCELERATIONS CHANGING ACTIVELY Russian patent published in 1996 - IPC

FIELD: dynamic tests of devices. SUBSTANCE: actively changing acceleration is created by turn of platform 3 mounted on rotary frame 1 and carrying tables 9, 11 arranged in symmetry to axis of its turn. One of tables is used for placement of tested article 10 for test by means of inertial drive. This drive has two faceplates 20, 21 put on frame in symmetry to its rotation axis for antiphase turn relative to their axes parallel to rotation axis of frame, two inertial members in the form of carriages 28, 29 each installed in diametrical guides 26, 27 of one of platforms and individual drives of translation of inertial members. One of faceplates is fitted with pins 36, 37 and frame is provided with rests interacting with them which limit angle of turn of faceplate by value ±8^°. Each of faceplates is coupled to shaft of platform with gear transmission 24, 25 with transmission ratio i=8. Axes of turn of platform and rotation of frame are mutually perpendicular. Platform is manufactured in the form of cross piece, one part of it carries tables, ends of other part carry balancing weights 18, 19 providing constancy of moment of inertia of mobile system put on frame relative to rotation axis of frame. EFFECT: enhanced reliability of testing. 4 dwg