P2 20 A hydraulic servomechanism with mechanical feedback is shown in Figure P2 20 18 The power piston has an area equal to A When the valve is moved a small amount z, the oil will flow through to the cylinder at a rate p z, where p is the port coefficient The input oil pressure is assumed to be constant From the geometry, we find that (a) Determine the closed loop signal flow graph or block diagram for this mechanical system (b) Obtain the closed loop transfer function Y1s2 X1s2 Az k 11 12 (xy) 4

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P2 20 A hydraulic servomechanism with mechanical feedback is shown in Figure P2 20  18   The power piston has an area equal to A  When the valve is moved a small amount z, the oil will flow through to the cylinder at a rate p   z, where p is the port coefficient  The input oil pressure is assumed to be constant  From the geometry, we find that (a) Determine the closed loop signal flow graph or block diagram for this mechanical system  (b) Obtain the closed loop transfer function Y1s2 X1s2  Az k  11 12 (xy) 4

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Question: P2.20 A hydraulic servomechanism with mechanical feedback is shown in Figure P2.20 [18]. The power piston has an area equal to A. When the valve

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