Table 1: Parameters of valve controlled hydraulic cylinder.

Parameters of the symbolParameter nameUnitOil cylinder

Ltripmm1100
Dcylinder boremm80
dpiston rod diametermm45
hydraulic damping ratio--0.4
drive equivalent loadkg2000
oil equivalent elastic modulusPa7.0108
proportional valve core area gainmm18
proportional valve rated core inlet and outlet differential pressure1.6
the oil density860