STAND FOR VIBRATION TESTS OF DESIGN STRUCTURES Russian patent published in 1994 - IPC

FIELD: mechanical engineering. SUBSTANCE: a stand with multipoint excitement of resonance oscillations of a design structure, is mounted on pneumatic supports and vibration exciters are located in rigid pneumatic chambers of pneumatic supports. Vibration exciter has pairs of electric magnets, symmetrically located relatively to a vertical axis of a pneumatic support, and a ring-shaped armature with a bead, located in clearances between electric magnets. The armature is connected with inner contour of a flexible member, made as a ring-shaped cover, connected by outer contour with pneumatic chamber and by inner contour - with one of parts of suspension joint of design structure. Electric magnets are mounted so as to be capable to move and to regulate clearances between them and the bead of the armature. EFFECT: stand is used to test aircraft design structures for vibration. 4 dwg