BENCH FOR BREAKAGE TESTING OF ROTATING PARTS Russian patent published in 1995 - IPC

FIELD: test technology. SUBSTANCE: bench has vacuum speed-up chamber 4, drive 3 for rotating specimen 5 to be tested, rotational velocity sensor 2 connected to the drive, sensor 31 for measuring crack growth and electric control system 1 the output of which is connected to rotation drive 3. The bench furthermore has recording device 28 the outputs of which are connected to the outputs of rotational velocity sensor 2 and crack growth sensor 31, induction heater 9 for heating up whole specimen 5, heater 10 for locally heating predetermined portions of specimen 5, gas heater 15, power amplifier 14, gas cooling source 23, gas temperature sensor 30 and control valve 24. EFFECT: enhanced accuracy due to carrying out tests under conditions approximate to service ones. 2 cl, 7 dwg