Question: A fixed-displacement pump is delivering 3.5 GPM to a circuit such as the one shown in Fig. 3.21. The workpiece must be held by the clamp cylinder with a minimum force equivalent to 600 psi during the operation. It has been determined that a clamping force equivalent to 750 psi will damage the workpiece. Pressure at the cap end of the extend cylinder was measured during extension. An idealized plot of this pressure is shown in Fig. 3.32. (No data are presented for the retraction part of the cycle.)
a. Will this circuit operate satisfactorily? If so, briefly explain how all functional requirements are met.
b. Calculate the hydraulic energy (hp-h) dissipated across the sequence valve during extension. Remember energy is power × time.
