The invention provides a
piston part fatigue test high
detonation pressure simulating device. The
piston part fatigue test high
detonation pressure simulating device comprises a test
machine seat, a
piston supporting seat, an adjusting cylinder sleeve, a test cylinder body, a load
amplifier and a low-pressure cavity body, a low-pressure input cavity A is formed between an inner hole of the low-pressure cavity body and the top surface of a low-pressure touching head, a high
detonation pressure action cavity B is formed by the bottom surface of a high-pressure touching head, the top surface of atest piston and the adjusting cylinder sleeve, an
inertia force action cavity C is formed by the test
machine seat, the adjusting cylinder sleeve and the bottom of the test piston, and the low-pressure input cavity A, the high detonation
pressure action cavity B and the
inertia force action cavity C are separately connected with an
electro hydraulic servo system through own oil ducts. According to the piston part fatigue test high detonation pressure simulating device, a test method of three-channel inputting three-oil cavity control is adopted, and oil
mass supplement, load infliction and
pressure monitoring are separately carried out on three pressure cavities through a three-channel of the
electro hydraulic servo system. The working purposes of low-pressure output of the equipment,
high load infliction of the test piece head and asynchronous bearing of the bottom and skirt section of the test piece are realized.