DYNAMIC LOAD REPRODUCING BENCH Russian patent published in 2019 - IPC G01M7/00 

FIELD: test equipment.

SUBSTANCE: invention relates to test equipment, namely, to stands for creation of dynamic loads and acceleration at tested objects. Proposed device comprises cylindrical case with main piston with rod, main piston acceleration drive including pneumatic chamber, braking device and tested article secured at rod end. Additional piston is introduced into the body, which forms a hydraulic chamber filled with the working medium and forms with the main piston a volume-regulated hydraulic chamber. Brake device is a cover closing the front casing face, at that the additional piston is installed at the specified distance from the cover. Pneumatic chamber is separately connected to rear end of housing on main piston side chamber with piston interacting with main piston, wherein pneumatic chamber cavity is interconnected with pre-piston cavity formed by housing inner walls, main piston and pneumatic chamber end.

EFFECT: technical result consists in wider range and high accuracy of dynamic effects reproduced by installation on test object, simplified design with simultaneous reduction of test time.

1 cl, 1 dwg