BENCH TO TEST TRIPLE SLEEPER FOR CYCLIC AND STATIC FATIGUE STRENGTH Russian patent published in 2015 - IPC G01M5/00 G01N3/36 

FIELD: machine building.

SUBSTANCE: test bench comprises three independent follower electrohydraulic drives including three hydraulic cylinders, three servovalves, three dynamometers, three regulators and three mechanical systems while one of the latter comprises a lever system, all drives are energized from an oil pump station and are controlled by the same computer. One of the follower electrohydraulic drives is fixed stationary and the other two together with cross bars can move freely. One support of a sleeper opposite the fixed drive is in fixed position and the other support of the sleeper can change its position depending on the loading diagram.

EFFECT: possibility to test any sleeper with rail gauge from 1067 to 1520 mm.

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