A hydraulic servomechanism with mechanical feedback is shown in Figure P2.21 [18]. The
Chapter 0, Problem P2.21(choose chapter or problem)
A hydraulic servomechanism with mechanical feedback is shown in Figure P2.21 [18]. The power piston has an area equal to A. When the valve is moved a small amount Az, the oil will flow through to the cylinder at a rate p Az, where p is the port coefficient. The 145 (a) 'in G vgs -> (P*"."* >*a >x i "it Q input oil pressure is assumed to be constant. From the geometry, we find that Az = &-(x - y) - y. h h (a) Determine the closed-loop signal-flow graph or block diagram for this mechanical system, (
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