BENCH TO TEST INSTRUMENTS FOR EXPOSURE TO COMPLEX SPATIAL LOADS Russian patent published in 2015 - IPC G01M7/08 

FIELD: testing equipment.

SUBSTANCE: bench comprises a platform installed on a base with a drive of its rotation, installed on the platform as capable of rotation relative to the axis parallel to the axis of platform rotation, a face plate equipped with a drive, placed on the platform and connected to the face plate by means of an angular reducer. The platform is balanced with a counterbalance (not shown in the drawings). The item is fixed on the table connected to the face plate by means of a mechanism comprising a lever, a ball suspension, a table rotation drive and a double-stage cardan suspension fixed on the base. The table is fixed on one end of the lever, on the other end of the lever there is a connection element in the form of a pair of reciprocal motion, one part of which is an axial hole in the end of the lever, and the other part - a ball suspension shaft, at the same time the support of the ball suspension is made on the face plate at the distance from its axis of rotation, and the shaft of the ball suspension is inserted into the lever opening. A motor is installed in the double-stage cardan suspension, axes of which are perpendicular to the axis of platform rotation, and the point of crossing of these axes lies on the axis of platform rotation, and the rotor of the motor is fixed on the lever coaxially to it.

EFFECT: possibility to reproduce periodical accelerations arising during item rotation around three axes that meet in one pole.

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