An industrial hydraulic application is represented by the hydraulic circuit diagram shown in Fig. 4(b). It can be assumed that the cracking pressure for 1V3 is very low and that both cylinders require approximately the same pressure for retraction. Answer each of the following for the circuit shown in Fig. 4(b): (i) Neatly sketch the displacement step diagram with signal lines. (ii) Briefly describe the initial status of the system. (iii) What is the function of valve 1V2?

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
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Part b please

SECTION B
Question 4
(a)
The double acting hydraulic cylinder shown in Fig. 4(a), receives hydraulic fluid with a
velocity, vị, of 5 m/s at the port on the full bore end of the cylinder. The diameter of this port is
0.6 cm and the piston diameter is 2.8 cm. The double acting cylinder has to deliver a static
thrust of 2156 N. Calculate the motor power required to drive this pump.
A,
A.
Fig. 4(a)
(b)
An industrial hydraulic application is represented by the hydraulic circuit diagram shown in
Fig. 4(b). It can be assumed that the cracking pressure for 1V3 is very low and that both
cylinders require approximately the same pressure for retraction. Answer each of the following
for the circuit shown in Fig. 4(b):
(i)
Neatly sketch the displacement step diagram with signal lines.
(ii)
Briefly describe the initial status of the system.
(iii)
What is the function of valve 1V2?
(iv)
Using the displacement step diagram, describe the operational events for one cycle of
the actuators.
1 A
2 A
1V2 T
1V3
1V1
oz1
Fig. 4(b)
Page 6 of 16
Transcribed Image Text:SECTION B Question 4 (a) The double acting hydraulic cylinder shown in Fig. 4(a), receives hydraulic fluid with a velocity, vị, of 5 m/s at the port on the full bore end of the cylinder. The diameter of this port is 0.6 cm and the piston diameter is 2.8 cm. The double acting cylinder has to deliver a static thrust of 2156 N. Calculate the motor power required to drive this pump. A, A. Fig. 4(a) (b) An industrial hydraulic application is represented by the hydraulic circuit diagram shown in Fig. 4(b). It can be assumed that the cracking pressure for 1V3 is very low and that both cylinders require approximately the same pressure for retraction. Answer each of the following for the circuit shown in Fig. 4(b): (i) Neatly sketch the displacement step diagram with signal lines. (ii) Briefly describe the initial status of the system. (iii) What is the function of valve 1V2? (iv) Using the displacement step diagram, describe the operational events for one cycle of the actuators. 1 A 2 A 1V2 T 1V3 1V1 oz1 Fig. 4(b) Page 6 of 16
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