... qx(L/min)NONLINEAR PHENOMENA IN HYDRAULIC SYSTEMS Satoru HayashiProfessor Emeritus, Tohoku University, 981-3202, Sendai, JapanHZK00631@nifty.ne.jpABSTRACT Hydraulic systems include various non-linearities ... a variety of nonlinear phenomena occurin the systems. This paper deals with intrinsicnonlinear dynamic behaviors of hydraulic systems. KEYWORDSHydraulics, Nonlinear phenomena, Hard self-excitation, ... attaching a hydraulic resistance inthe pilot circuit is actually to compensate the variable hydraulic resistance of the pilot hydraulic bridge, whichis suited for other pressure valves controlled...