Research on High-Power and High-Speed Hydraulic Impact Testing Machine for Mine Anti-Impact Support Equipment

Table 3

AMESim parameter setting.

Parameters	Value
Initial pressure of oil accumulator for control system	5 MPa
Volume of oil accumulator for control system	40 L
Nominal arrange capacity of pump for control system	20 ml/r
Nominal speed of motor for control system	1450 r/min
Preset pressure of oil relief valve for control system	15 MPa
Initial pressure of 12 accumulators in main oil circuit	5 MPa
Total volume of 12 accumulators in main oil circuit	480 L
Nominal displacement of main pump	250 ml/r
Nominal speed of main motor	1450 r/min
Loading pressure of accumulator set	15 MPa
Piston diameter of impact cylinder	400 mm
Diameter of impact rod	240 mm
Impact rod stroke	350 mm
Quality of quick-opening valve spool	25 kg
Maximum static friction	1200 N
Maximum dynamic friction	1000 N
Impulse load damping	10 N·(m/s)
Impact load stiffness	1e + 07 (N/mm)
Discharge coefficient	0.7