Question (3): [1 A three-stage double acung telescopic cylinder is controlled with the circuit represented below. The supply pump has a displacement of 9 cm3/rev and it rotates at a speed of 2000 rpm. The cylinder rods have diameters of 100 mm, 80 mm and 60 mm. The barrel diameters are instead 110 mm, 90 mm and 70 mm. When extending, the cylinder sees a resistive force of 28 kN, while when retracting the external load is null. Calculate the extension and retraction velocities and the pressures in the following case: - No restrictions present in the lines Assume an oil density equal to 850 kg/m3. The relief valve is set to 150 bar. Find: a) Extension speeds Vel (for cylinder 1), Ve2 (Cyl 2), Ve3 (Cyl 3) b) Retraction speeds Vr1, Vr2, Vr3 c) Pump pressure during extension and retraction (PPE, PPR) d A. TT. P PP RV DCV WM FTXM Fig 3 CYL -F
Question (3): [1 A three-stage double acung telescopic cylinder is controlled with the circuit represented below. The supply pump has a displacement of 9 cm3/rev and it rotates at a speed of 2000 rpm. The cylinder rods have diameters of 100 mm, 80 mm and 60 mm. The barrel diameters are instead 110 mm, 90 mm and 70 mm. When extending, the cylinder sees a resistive force of 28 kN, while when retracting the external load is null. Calculate the extension and retraction velocities and the pressures in the following case: - No restrictions present in the lines Assume an oil density equal to 850 kg/m3. The relief valve is set to 150 bar. Find: a) Extension speeds Vel (for cylinder 1), Ve2 (Cyl 2), Ve3 (Cyl 3) b) Retraction speeds Vr1, Vr2, Vr3 c) Pump pressure during extension and retraction (PPE, PPR) d A. TT. P PP RV DCV WM FTXM Fig 3 CYL -F
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
Related questions
Question
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step 1: determine the extension and retraction velocities
VIEWStep 2: Calculate flow rate of pump
VIEWStep 3: Calculate the extension and retraction speeds for each cylinder stage
VIEWStep 4: Calculate the pressure during extension and retraction for each stage
VIEWStep 5: Calculate the pump pressure during extension
VIEWSolution
VIEWStep by step
Solved in 6 steps with 20 images
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Recommended textbooks for you
Elements Of Electromagnetics
Mechanical Engineering
ISBN:
9780190698614
Author:
Sadiku, Matthew N. O.
Publisher:
Oxford University Press
Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:
9780134319650
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:
9781259822674
Author:
Yunus A. Cengel Dr., Michael A. Boles
Publisher:
McGraw-Hill Education
Elements Of Electromagnetics
Mechanical Engineering
ISBN:
9780190698614
Author:
Sadiku, Matthew N. O.
Publisher:
Oxford University Press
Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:
9780134319650
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:
9781259822674
Author:
Yunus A. Cengel Dr., Michael A. Boles
Publisher:
McGraw-Hill Education
Control Systems Engineering
Mechanical Engineering
ISBN:
9781118170519
Author:
Norman S. Nise
Publisher:
WILEY
Mechanics of Materials (MindTap Course List)
Mechanical Engineering
ISBN:
9781337093347
Author:
Barry J. Goodno, James M. Gere
Publisher:
Cengage Learning
Engineering Mechanics: Statics
Mechanical Engineering
ISBN:
9781118807330
Author:
James L. Meriam, L. G. Kraige, J. N. Bolton
Publisher:
WILEY