Introduction to IEEE STANDARDS and its different types.pptx
Β
Design of Fluid Power Systems and its analysis (Hydraulics and Pneumatics circuit design)
1. Design of Fluid Power Systems and its analysis
B. Tech (Mechanical Engineering)
A. Y. 2021-2022
(Semester β V)
Course: Hydraulics and Pneumatics
Design of Fluid Power Systems
and its analysis
by
Abhishek D. Patange
Assistant Professor
Department of Mechanical Engineering
College of Engineering Pune (COEP)
Abhishek D. Patange , Department of Mechanical Engineering, COEP
2. Course instructor:
Abhishek D. Patange
β’ Assistant Professor, Mechanical Engineering, COEP
β’ Ph.D. (Submitted) : Application of Machine Learning for Fault
Diagnosis, VIT, Vellore.
β’ Masterβs : Design Engineering, COEP, Pune
β’ Bachelor's: Mechanical Engineering, COEP, Pune
Area of expertise:
β’ Mechatronics, Hydraulics & Pneumatics, Numerical Methods, Theory of Machines,
Analysis and Synthesis of Mechanism, Health monitoring & Predictive analytics, Data
acquisition/Instrumentation, The application of machine learning for Mechanical
Engineering.
β’ Case study based learning, Research/Project based learning
Research profiles:
β’ https://www.linkedin.com/in/abhishek-patange-89884179/
β’ https://www.scopus.com/authid/detail.uri?authorId=57204179235
β’ https://scholar.google.co.in/citations?user=u4zim9MAAAAJ&hl=en
β’ https://www.researchgate.net/profile/Abhishek_Patange
Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
3. Contents:
β’ Introduction to fluid power
β’ Pascalβs law
β’ Calculation of pressure, velocity and power
β’ Design and analysis of typical hydraulic circuits
β’ Analysis of typical pneumatic circuits
β’ Practical problems for home work
Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
4. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Introduction to fluid power
& Pascalβs law
5. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
6. Hydro-mechanics
Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
7. Pascalβs law
Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
8. Hydro-mechanics
Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
9. Hydro-mechanics
Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
10. Hydro-mechanics
Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
11. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Calculation of pressure,
velocity and power
12. Actuation of double acting hydraulic cylinder
Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
1
2
3
4
5
6
13. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Calculation of pressure, velocity, power during extension
of a double acting cylinder
Blank end
Rod end
Direction of cylinder motion
A B
T
P
F
A pump supplies oil at 0.0016 π3
/π to 40 mm
diameter double acting cylinder. If the external
load acting on cylinder during extension and
retraction is 5000 N and connecting rod is 20
mm, find the
1. Hydraulic pressure during the extension
2. Velocity of piston during the extension
3. Power in kW during the extension
4. Hydraulic pressure during the retraction
5. Velocity of piston during the retraction
6. Power in kW during the retraction
πΈπ = 0.0016 ππ/π
π π = 40 mm π π = 20 mm
ππ = ππ = 5000 N
14. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Calculation of pressure during extension
Blank end
Rod end
Direction of cylinder motion
A B
T
P
F
πΈπ = 0.0016 ππ/π
π π = 40 mm π π = 20 mm
ππππ = ππππ = 5000 N
π =
πΉ
π΄
1. Hydraulic pressure during the extension
πππ₯π‘ =
πΉππ₯π‘
π΄π
ππππ =
5000
π
4
0.042
= 3978.87 kPa
π΄π =
π
4
ππ
2 π΄π =
π
4
0.042
ππππ
15. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Calculation of velocity during extension
Blank end
Rod end
Direction of cylinder motion
A B
T
P
F
πΈπ = 0.0016 ππ/π
π π = 40 mm π π = 20 mm
ππππ = ππππ = 5000 N
π =
π
π΄
2. Velocity of piston during the extension
πππ₯π‘ =
πππ
π΄π
π½πππ =
0.0016
π
4
0.042
= 1.27 m/sec
π΄π =
π
4
ππ
2 π΄π =
π
4
0.042
π½πππ
16. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Calculation of power during extension
Blank end
Rod end
Direction of cylinder motion
A B
T
P
F
πΈπ = 0.0016 ππ/π
π π = 40 mm π π = 20 mm
ππππ = ππππ = 5000 N
π = πΉ β π
3. Power in kW during the extension
πππ₯π‘ = πΉππ₯π‘ β πππ₯π‘
π·πππ = 5000 β 1.27 = π. ππ ππΎ
17. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
A B
T
P
Blank end
Rod end
Direction of cylinder motion
Calculation of pressure during retraction
π =
πΉ
π΄
1. Hydraulic pressure during the retraction
ππππ‘ =
πΉπππ‘
π΄π β π΄π
ππππ =
5000
π
4
(0.042β0.022)
= 5305.16 kPa
π΄π β π΄π =
π
4
(ππ
2
β ππ
2
)
π΄π =
π
4
(0.042β0.022)
ππππ
F ππππ = ππππ = 5000 N
π΄π β π΄π
π π = 40 mm π π = 20 mm
18. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
A B
T
P
Blank end
Rod end
Direction of cylinder motion
Calculation of velocity during retraction
π½πππ =
0.0016
π
4
(0.042β0.022)
= 1.69 m/sec
π΄π β π΄π =
π
4
(ππ
2
β ππ
2
)
π΄π =
π
4
(0.042β0.022)
ππππ
F ππππ = ππππ = 5000 N
π΄π β π΄π
π π = 40 mm π π = 20 mm
π =
π
π΄
2. Velocity of piston during the extension
ππππ‘ =
πππ
π΄π β π΄π
π½πππ
19. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
A B
T
P
Blank end
Rod end
Direction of cylinder motion
Calculation of power during retraction
ππππ
F ππππ = ππππ = 5000 N
π΄π β π΄π
π π = 40 mm π π = 20 mm
π½πππ
π = πΉ β π
3. Power in kW during the extension
ππππ‘ = πΉπππ‘ β ππππ‘
π·πππ = 5000 β 1.69 = π. ππ ππΎ
20. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
πππ₯π‘ =
πΉππ₯π‘
π΄π
πππ₯π‘ =
πππ
π΄π
πππ₯π‘ = πΉππ₯π‘ β πππ₯π‘
ππππ‘ =
πΉπππ‘
π΄π β π΄π
ππππ‘ =
πππ
π΄π β π΄π
ππππ‘ = πΉπππ‘ β ππππ‘
Retraction
Extension
Pressure
Velocity
Power
<
<
<
3978.87 kPa
1.27 m/sec
π. ππ ππΎ
5305.16 kPa
1.69 m/sec
π. ππ ππΎ
21. Regenerative circuit (fast extension)
Blank end
Rod end
A B
T
P
A B
T
P
A B
T
P
Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
22. Regenerative circuit (fast extension)
Blank end
Rod end
Direction of
cylinder force
A B
T
P
A B
T
P
A B
T
P
Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
πΈπ·
πΈπΉ
πΈπ» = πΈπ·+ πΈπΉ
Solving for the pump flow,
πΈπ· = πΈπ» β πΈπΉ
πΈπ· = π½πππ β π¨π β [π½πππ β (π¨πβπ¨π)]
πΈπ· = π½πππ β π¨π β π½πππ β π¨π + π½πππ β π¨π
πΈπ· = π½πππ β π¨π
π½πππ = πΈπ·/π¨π
23. Regenerative circuit (fast extension)
Blank end
Rod end
Direction of
cylinder force
A B
T
P
A B
T
P
A B
T
P
Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
πΈπ·
πΈπ
Solving for velocity of retraction,
π½πππ = πΈπ·/(π¨π β π¨π)
So if you compare the formulae for
Velocity of extension and retraction,
π½πππ = πΈπ·/π¨π
π½πππ = πΈπ·/(π¨π β π¨π)
24. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Dividing velocity of extension by velocity of retraction,
π½πππ
π½πππ
=
πΈπ·/π¨π
πΈπ·/(π¨π β π¨π)
π½πππ
π½πππ
=
π¨π β π¨π
π¨π
π½πππ
π½πππ
=
π¨π
π¨π
β π
Regenerative circuit (fast extension)
25. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Regenerative circuit (fast extension)
27. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Design and analysis of
typical hydraulic circuits
28. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Design of a fluid power system
29. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Design of a fluid power system
30. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Design of a fluid power system
31. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Design of a fluid power system
32. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Design of a fluid power system
33. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Design of a fluid power system
34. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Design of a fluid power system
35. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Stepwise procedure
36. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Stepwise procedure
37. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Stepwise procedure
38. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Stepwise procedure
39. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Stepwise procedure
40. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Stepwise procedure
41. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Stepwise procedure
42. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Problem 1
43. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Problem 1
44. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Problem 1
45. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Problem 1
46. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Problem 1
47. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Problem 1
48. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Problem 1
49. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Problem 1
50. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Problem 1
51. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Problem 1
52. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Problem 1
53. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Problem 1
54. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Problem 1
55. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Problem 1
56. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Problem 1
57. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Problem 1
58. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Problem 2
59. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Problem 2
60. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Problem 2
61. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Problem 2
62. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Problem 2
63. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Problem 2
64. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Problem 2
65. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Problem 2
66. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Problem 2
67. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Problem 3
68. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Problem 3
69. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Problem 3
70. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Problem 3
71. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Problem 3
72. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Problem 3
73. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Problem 3
74. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Problem 4
75. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Problem 4
76. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Problem 5
77. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Problem 5
78. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Problem 5
79. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Problem 5
80. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Problem 5
81. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Two hand safety circuit
82. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Motor braking circuit
83. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Analysis of typical
pneumatic circuits
84. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Analyze the pneumatic circuit
85. Question 1:
β’ Explain construction and working of Shuttle valve with
schematic diagram used in pneumatics.
β’ Also explain electrical equivalent circuit, truth table,
Boolean expression, application for shuttle valve as OR
logic gate.
Answer is given on next page:
Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
86. **Description is given on next page
Shuttle Valves (OR Gate)
Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
87. Working:
A shuttle valve allows two alternate flow sources to be connected in a one-
branch circuit. The valve has two inlets P1 and P2 and one outlet A. Outlet A
receives flow from an inlet that is at a higher pressure. Figure 1.5 shows the
operation of a shuttle valve. If the pressure at P1 is greater than that at P2, the
ball slides to the right and allows P1 to send flow to outlet A. If the pressure at
P2 is greater than that at P1, the ball slides to the left and P2 supplies flow to
outlet A .
Application:
One application for a shuttle valve is to have a primary pump inlet P1 and a
secondary pump inlet P2 connected to the system outlet A The secondary
pump acts as a backup, supplying flow to the system if the primary pump loses
pressure. A shuttle valve is called an βORβ valve because receiving a pressure
input signal from either P1 or P2 causes a pressure output signal to be sent to
A
Shuttle Valves (OR Gate)
Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
88. Shuttle valve as OR Gate
A+B
OR Electric Circuit OR Truth Table
Boolean expression
Application
Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
89. Shuttle Valves application in circuit
Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
90. Question 2:
β’ Explain construction and working of Twin
pressure/dual pressure valve with schematic diagram
used in pneumatics.
β’ Also explain electrical equivalent circuit, truth table,
Boolean expression, application for Twin
pressure/dual pressure valve as AND logic gate.
Answer is given on next page:
Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
91. Twin pressure/dual pressure valve (AND Gate)
Valve body
Inlet 1 Inlet 2
Outlet
Reciprocating
spool
Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
92. Working:
This valve is the pneumatic AND valve. It is also derivate of Non Return Valve. A
two pressure valve requires two pressurized inputs to allow an output from
itself. The cross sectional views of two pressure valve in two positions are given
in figure. As shown in the figure, this valve has two inputs 1 and 2 and one
output. If the compressed air is applied to either 1 or input 2, the spool moves
to block the flow, and no signal appears at output. If signals are applied to both
the inputs 1 and 2, the compressed air flows through the valve, and the signal
appears at output.
Application:
These valve types are commonly associated but not limited to safety circuits,
for example a two push button operation system whereby an operator is
required to use both hands to activate two push buttons, this would ensure the
operators hands are out of reach of any hazardous operations.
Twin pressure/dual pressure valve (AND Gate)
Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
93. Twin pressure/dual pressure valve (AND Gate)
Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
94. A*B
Twin pressure valve as AND Gate
AND Electric Circuit AND Truth Table
Boolean expression
Application
Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
95. Twin pressure valve application in circuit
Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
96. Question 3:
β’ Explain construction and working of time delay valve
with schematic diagram used in pneumatics.
β’ Explain the application with circuit.
Answer is given on next page:
Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
97. β’ It is used wherever delay of operation is required
Time delay valve
Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
98. Circuit of time delay
valve
β’ In the circuit the
time delay valve,
holds the cylinder
in the extended
position for the
pre determined
time, set on the
delay valve
1.4
1.2
1.4
Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
99. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Practical problems for home
work
100. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
101. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
102. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
103. Design of Fluid Power Systems and its analysis
Abhishek D. Patange , Department of Mechanical Engineering, COEP
Thank you!
Any doubts??
Please feel free to contact
me @
adp.mech@coep.ac.in
+91-8329347107
Editor's Notes
Ganapati bappa morya shree swami samarth jai shankar!!
Ganapati bappa morya shree swami samarth jai shankar!!