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E-raamat: Basics of Hydraulic Systems, Second Edition

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(Washington State University, Prosser, USA)
  • Formaat: 338 pages
  • Ilmumisaeg: 07-Mar-2019
  • Kirjastus: CRC Press
  • Keel: eng
  • ISBN-13: 9780429591037
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Basics of Hydraulic Systems, Second EditionSuurem pilt
  • Formaat: 338 pages
  • Ilmumisaeg: 07-Mar-2019
  • Kirjastus: CRC Press
  • Keel: eng
  • ISBN-13: 9780429591037
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"Basics of Hydraulic Systems, Second Edition provides students and professionals in both engineering and technology management fields a basic book to assist in their study of fluid power systems technology. This edition is expanded to include new chapters on system modeling and hydraulic systems controls. The text covers subjects essential to understanding operating principles, configuration features, functionalities, applications of composing elements, and controls of hydraulic systems. It presents themin a systematic, accessible way, following the course of energy transmission in hydraulic power generation, distribution, deployment, modeling, and control in fluid power systems"--

This textbook surveys hydraulics and fluid power systems technology, with new chapters on system modeling and hydraulic systems controls now included.The text presents topics in a systematic way, following the course of energy transmission in hydraulic power generation, distribution, deployment, modeling, and control in fluid power systems.
Preface ix
Preface to the Second Edition xi
About the Author xiii
1 Introduction to Hydraulic Power
1(24)
1.1 Power Transmission and Hydraulic Systems
1(5)
1.1.1 Power Transmission in Machinery Systems
1(1)
1.1.2 Hydraulic Power Systems on Mobile Equipment
2(2)
1.1.3 Hydraulic Components and System Schematics
4(2)
1.2 Fundamentals of Hydraulic Power Transmission
6(6)
1.2.1 Multiplication of Force
6(2)
1.2.2 Conservation of Energy
8(3)
1.2.3 Continuity of Fluids
11(1)
1.3 Energy and Power in Hydraulic Systems
12(3)
1.3.1 Energy Conversion in Hydraulic Systems
12(1)
1.3.2 Hydraulic Power and Efficiency
13(2)
1.4 Standard Graphical Symbols for Hydraulic System Schematics
15(3)
1.5 Units and Unit Conversion in Hydraulic Systems
18(3)
References
21(1)
Exercises
22(3)
2 Hydraulic Power Generation
25(30)
2.1 Hydraulic Pumps
25(16)
2.1.1 Overview of Hydraulic Pumps
25(1)
2.1.2 Principle of Positive Displacement Pumping
26(1)
2.1.3 Gear Pumps
27(5)
2.1.4 Vane Pumps
32(2)
2.1.5 Piston Pumps
34(7)
2.2 Control of Hydraulic Power Generation
41(10)
2.2.1 Corner Power and Pump Efficiency
41(4)
2.2.2 Pressure Limiting
45(2)
2.2.3 Load Sensing with Pressure Limiting
47(1)
2.2.4 Torque Limiting
48(3)
References
51(1)
Exercises
52(3)
3 Hydraulic Power Distribution
55(54)
3.1 Hydraulic Control Valves
55(36)
3.1.1 Overview of Hydraulic Valves
55(2)
3.1.2 Fundamentals of Valve Control
57(7)
3.1.3 Pressure Control Valves
64(7)
3.1.4 Directional Control Valves
71(5)
3.1.5 Flow Control Valves
76(5)
3.1.6 Electrohydraulic Control Valves
81(6)
3.1.7 Programmable Electrohydraulic Valves
87(2)
3.1.8 Select Appropriate Control Valves
89(2)
3.2 Hydraulic Manifolds
91(2)
3.2.1 Overview of Hydraulic Manifolds
91(1)
3.2.2 Modular-Block Manifolds
91(1)
3.2.3 Single-Piece Hydraulic Manifolds
91(2)
3.3 Hydraulic Lines
93(10)
3.3.1 Major Components of Hydraulic lines
93(1)
3.3.2 Hydraulic Hoses
93(3)
3.3.3 Metal Tubes and Pipes
96(2)
3.3.4 Designing Hydraulic Lines
98(3)
3.3.5 Hose Routing and Installations
101(2)
3.4 Energy Losses and Heat Generation in Power Distribution
103(2)
References
105(2)
Exercises
107(2)
4 Hydraulic Power Deployment
109(58)
4.1 Hydraulic Power Deployment Components
109(4)
4.1.1 Hydraulic Actuators
109(1)
4.1.2 Principle of Hydraulic Actuating
109(4)
4.2 Hydraulic Cylinders
113(13)
4.2.1 Classification of Hydraulic Cylinders
113(1)
4.2.2 Operating Parameters of Hydraulic Cylinders
114(6)
4.2.3 Hydraulic Cylinder Cushions
120(1)
4.2.4 Hydraulic Cylinder Power Transmission
121(2)
4.2.5 Hydraulic Cylinder Applications
123(3)
4.3 Hydraulic Motors
126(20)
4.3.1 Classification of Hydraulic Motors
126(1)
4.3.2 Operating Parameters of Hydraulic Motors
126(3)
4.3.3 High-Speed Hydraulic Motors
129(6)
4.3.4 Low-Speed High-Torque Motors
135(3)
4.3.5 Oscillating Rotary Actuators
138(2)
4.3.6 Speed Control and Power Transmission of Hydraulic Motors
140(6)
4.4 Hydrostatic Transmission
146(17)
4.4.1 Overview of Hydrostatic Transmission
146(2)
4.4.2 Configurations of Hydrostatic Transmission
148(5)
4.4.3 Control of Hydrostatic Transmission
153(6)
4.4.4 Applications of Hydrostatic Transmission
159(4)
References
163(1)
Exercises
164(3)
5 Hydraulic Power Regulation
167(28)
5.1 Overview of Power Regulation
167(3)
5.1.1 Regulating Hydraulic Power
167(1)
5.1.2 Commonly Used Power-Regulating devices
168(2)
5.2 Power-Absorbing Devices
170(6)
5.2.1 Hydraulic Shock Absorbers
170(3)
5.2.2 Hydraulic Fluid Springs
173(3)
5.3 Power Storage Devices
176(9)
5.3.1 Functions of Hydraulic Accumulators
176(2)
5.3.2 Operation Principles of Hydraulic Accumulators
178(3)
5.3.3 Sizing Hydraulic Accumulators
181(2)
5.3.4 Mounting Hydraulic Accumulators
183(2)
5.4 Power Regeneration Devices
185(6)
5.4.1 Functions of Hydraulic Power Regeneration
185(1)
5.4.2 Hydraulic Pressure Intensifiers
186(2)
5.4.3 Two-Speed Hydraulic Cylinders
188(1)
5.4.4 Hydraulic braking chargers
189(2)
References
191(1)
Exercises
192(3)
6 Hydraulic Fluids and Fluid-Handling Components
195(28)
6.1 Hydraulic Fluids
195(7)
6.1.1 Functions of Hydraulic Fluids
195(1)
6.1.2 Hydraulic Fluid Properties
196(4)
6.1.3 Types of Hydraulic Fluids
200(2)
6.2 Hydraulic Fluids Reservoirs
202(6)
6.2.1 Functionality of Fluid Reservoirs
202(1)
6.2.2 Fluid Reservoir Components
203(3)
6.2.3 Fluid Reservoir Sizing
206(2)
6.3 Hydraulic Fluid Filters
208(7)
6.3.1 Hydraulic Fluid Contamination
208(2)
6.3.2 Fluid Cleanliness Measurements
210(1)
6.3.3 Hydraulic Fluid Filters
211(4)
6.4 Other Components
215(6)
6.4.1 Heat Exchangers
215(3)
6.4.2 Seals
218(3)
References
221(1)
Exercises
221(2)
7 Hydraulic Circuits
223(30)
7.1 Basic Circuits
223(11)
7.1.1 Pressure Control Circuits
223(4)
7.1.2 Direction Control Circuits
227(1)
7.1.3 Speed Control Circuits
228(5)
7.1.4 Sequencing Control Circuits
233(1)
7.1.5 Synchronizing Control Circuits
234(1)
7.2 Special Function Circuits
234(6)
7.2.1 Pump-Unloading Circuits
235(1)
7.2.2 Cylinder Pressure-Holding Circuits
236(1)
7.2.3 Hydraulic Motors Series-Parallel Circuits
236(1)
7.2.4 Hydraulic Braking Circuits
237(1)
7.2.5 Accumulator Circuits
238(1)
7.2.6 Replenishing and Cooling Circuits
239(1)
7.2.7 Hydraulic Filtering Circuits
240(1)
7.3 Integrated Hydraulic Circuits
240(9)
7.3.1 Hydrostatic Transmission Circuits
240(4)
7.3.2 Multibranch Integrated Hydraulic Circuits
244(3)
7.3.3 Programmable Electrohydraulic Circuits
247(2)
References
249(1)
Exercises
249(4)
8 Hydraulic Systems Modeling
253(24)
8.1 Mathematical Model of Hydraulic Systems
253(8)
8.1.1 Building Blocks of Hydraulic System Modeling
253(4)
8.1.2 Model of Simplified Valve-Controlled Systems
257(4)
8.2 System Analysis
261(12)
8.2.1 System Block Diagram and Transfer Function
261(5)
8.2.2 Transfer Function Simplification
266(2)
8.2.3 System State-Space Equations
268(1)
8.2.4 System Performance Characteristics
269(4)
References
273(1)
Exercises
273(4)
9 Electrohydraulic Systems Control
277(22)
9.1 Concepts of Electrohydraulic System Control
277(8)
9.1.1 Basic Concept of Automatic Controls
277(1)
9.1.2 Open- and Closed-Loop Controls
278(1)
9.1.3 Transient Response and Steady-State Error
279(2)
9.1.4 Gain and Feedback
281(2)
9.1.5 Frequency Response and the Bode Diagram
283(2)
9.2 Hydraulic Velocity, Position, and Force Controls
285(5)
9.2.1 Proportional and Servo Actuation in Electrohydraulic Control Valves
285(2)
9.2.2 Velocity Controls
287(2)
9.2.3 Position Controls
289(1)
9.2.4 Force Controls
289(1)
9.3 Basic Methods for Electrohydraulic System Controls
290(4)
9.3.1 Bang-Bang Control
290(1)
9.3.2 Modulated Feedforward Control
291(1)
9.3.3 PID Control
292(1)
9.3.4 A Few Other Control Methods
293(1)
References
294(1)
Exercises
295(4)
Appendix A Hydraulic Power Formulas 299(4)
Appendix B Orifice Area Formulas of a Few Typical Shaped Orifices 303(2)
Appendix C Some Useful Conversion Factors 305(2)
Appendix D Solutions to Selected Exercise Problems 307(4)
Index 311
Qin Zhang is a noted author and scholar in Agricultural Science and Engineering. He received his B.S. degree from Zhejiang Agriculture University in China, and went on to earn his M.S. and Ph.D. degrees from the University of Illinois, as well as doing post-doctoral studies there. He served as a Senior Researcher for Caterillar Inc, and as an Assistant and Associate Professor of Agricultiral Engineering at the University of Illinois. He currently teaches at the Tri-Cities campus of Washington State University. He is the author of several Agricultural Engineering books.
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