DOUBLE-COORDINATE VIBRATION-TESTING MACHINE Russian patent published in 1998 - IPC

FIELD: vibration tests. SUBSTANCE: platform 2 on which article under test is installed is suspended from stationary base 1 elastically by means of two pairs of elastic modules 6. Each module consists of two posts 7, 8 and two equidistant lengths of rope 9. Posts 7 are positioned on side walls of platform, and posts 8, on base 1. Rope ends are secured in post 7 perpendicularly to it, and in post 8 they are inclined. Vibration exciter 10 is installed on side wall of platform for excitation of horizontal vibration, and vibration exciter 11 for excitation of vertical vibration is positioned on platform base. Vibration exciter 10 and posts of each module are capable of vertical setting displacement. This allows alignment of elastic suspension rigidity center with moving system mass center and passage of action line of vibration exciting force through common center of moving system mass and rigidity. EFFECT: removed vibration coherence for reproduced coordinates. 3 dwg