EBOOK - Power Hydraulics - Full Edition (Michael J. Pinches) & Tổng hợp các bản dịch Tiếng Việt - Sách Power Hydraulics (Full Update liên tục)
EBOOK - Hệ thống thủy lực - Power Hydraulics - Full Edition (Michael J. Pinches) & Tổng hợp các bản dịch Tiếng Việt - Sách Power Hydraulics (Full Update liên tục)
CONTENTS:
1 INTRODUCTION
1.1 Hydraulic principles
1.1.1 Properties of fluids
ile D aU mits
1.1.3 Pressure of a liquid
1.1.4 Flow of a fluid
1.1.5 Work done
1.2 Hydraulic symbols
2 PUMPS
2.1 Types of pump
2.1.1 Rotary pumps
2.1.2 Reciprocating pumps
2.1.3 Variable-displacement pump-control systems
2.1.4 Pump selection
2.2 Pumping circuits
2.2.1 Single fixed-displacement pump
2.2.2 Single fixed-displacement pump with accumulator
2.2.3 Multi-pump
2.2.4 Variable-delivery pump
2.3 Pump drives
2.4 Pump circuit design study
3 HYDRAULIC VALVES
3.1 Pressure-control valves
3.1.1 Relief valves
3.1.2 Counterbalance valves
3.1.3 Pressure sequence valves
3.1.4 Pressure-reducing valves
3.2 Flow-control valves
3.2.1 Speed control of a cylinder
3.2.2 Three-port or bypass-type flow-control valve
3.2.3 Priority flow control
3.2.4 Bridge networks
3.2.5 Multi-speed systems using flow-control valves
3.2.6 Flow dividers
Viii
3.3 Directional control valves
3.3.1 Check valves
3.3.2 Poppet valves
3.3.3 Sliding spool-type directional control valves
3.3.4 Two-stage directional control valves
3.3.5 Valve sizes and nomenclature
3.4 Cartridge valves
3.4.1 Poppet-type cartridge valves
3.4.2 Spool-type cartridge valves
3.5 Mobile hydraulic valves
3.5.1 Valve arrangements
4 ACTUATORS
4.1 Hydraulic cylinders
4.1.1 Displacement cylinders
4.1.2 Single-acting cylinders
4.1.3 Double-acting cylinders
4.1.4 Acceleration and deceleration of cylinder loads
4.1.5 Cylinder mountings and strength calculations
4.2 Semi-rotary actuators
4.2.1 Vane-type actuators
4.2.2 Piston-type actuators
4.2.3 Helical screw actuator
4.2.4 Control of semi-rotary actuators
4.3 Hydraulic motors
4.3.1 Generated form types
4.3.2 Piston-type motors
4.4 Hydraulic motor circuits
4.4.1 Open circuit transmissions
4.4.2 Closed-loop transmissions
4.4.3 Multi-motor circuits
4.5 Motor circuit design examples
5 FLUIDS FOR HYDRAULIC SYSTEMS
5.1 Hydraulic fluids
5.1.1 An outline of the development of hydraulic fluids
5.1.2 Properties of hydraulic fluids
5.1.3 Hydraulic fluids survey
5.1.4 Future developments
5.2 Fluid contamination control
5.2.1 Energy contamination
5.2.2 Gaseous contamination
5.2.3 Liquid contamination
5.2.4 Microbiological contamination
5.2.5 Particulate contamination (dirt)
5.3 Filter construction and filtration technology
5.3.1 Filter construction
5.3.2 Filtration technology
5.3.3 Filter location
5.3.4 Filter sizing
8.2.3 System response
ix
5.4 Leakage control 214
5.4.1 Hydraulic conduits 214
5.4.2 High-pressure tube connections Dla
5.4.3 Hydraulic hoses DO
5.4.4 Supports and clamps 230
5.4.5 Circuit accessories 230
5.4.6 Pipework elimination and simplification 232
5.4.7 Seal protection 233
5.4.8 Rules for leakage control 234
6 HYDRAULIC SYSTEM DESIGN 235
6.1 Design criteria 235
6.1.1 Design information required 236
6.2 Summary of basic formulae and rules 23m
6.2.1 Fluid flow 237)
6.2.2 Pressure losses 240
6.2.3 Cylinder formulae 241
6.2.4 Pump formulae 242
6.2.5 Hydraulic motor formulae 244
6.3 Power-pack design 245
6.3.1 Layout 245
6.3.2 Reservoirs 247
6.3.3 Centralized hydraulic systems 253
6.4 Hydraulic accumulators 254
6.4.1 Types of accumulators 254
6.4.2 Accumulator applications 259
6.4.3 Operation and safety precautions 265
6.5 Hydraulic intensifiers 267
6.6 Design study—a simple hydraulic press 268
6.7 Design study—conveyor feed system 287
HYDRAULIC SYSTEM MAINTENANCE 296
7.1 Equipment and practices which benefit maintenance 296
7.1.1 Good housekeeping practice 296
7.1.2 Fluid storage and handling 300
7.1.3 Installations and commissioning of hydraulic systems 301
7.1.4 Routine maintenance 303
7.2 Trouble shooting in hydraulic systems 304
7.2.1 Test equipment 304
7.2.2 General rules for hydraulic maintenance engineers 305
7.2.3 The concept of logical fault finding 305
7.3 Solutions to fault-finding exercises 323
8 CONTROL SYSTEMS 328
8.1 Servo control 329
8.2 Valve servo systems 330
8.2.1 Valve lap
330
8.2.2 Mechanical feedback
331
333
Contents
X Sa I eee
8.3
8.4
8.5
8.6
8.2.4 Electro-hydraulic servo valves
8.2.5 System response and stability
Pump servo systems
8.3.1 Effect of leakage
8.3.2 Effect of compressibility
8.3.3 Natural frequency
8.3.4 Hydraulic stiffness
8.3.5 Damping ratio
Proportional valves
8.4.1 Force control
8.4.2 Force position control
8.4.3 Spool positional control
8.4.4 Proportional pressure control
8.4.5 Two-stage proportional valves
8.4.6 Proportional flow control
8.4.7 Electrical control of proportional valves
Proportional versus servo valves
8.5.1 Response speed and dynamic characteristics
8.5.2 Hysteresis effect
8.5.3 Null position
Some applications of proportional control valves
8.6.1 Control of actuators
8.6.2 Pump control systems
APPENDIX EXERCISES AND SOLUTIONS
A.1 Circuitry questions
A.2 Hydraulic calculations
A.3 Design problems
A.4 Solutions to Section A.2
FURTHER READING
INDEX
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EBOOK - Hệ thống thủy lực - Power Hydraulics - Full Edition (Michael J. Pinches) & Tổng hợp các bản dịch Tiếng Việt - Sách Power Hydraulics (Full Update liên tục)
CONTENTS:
1 INTRODUCTION
1.1 Hydraulic principles
1.1.1 Properties of fluids
ile D aU mits
1.1.3 Pressure of a liquid
1.1.4 Flow of a fluid
1.1.5 Work done
1.2 Hydraulic symbols
2 PUMPS
2.1 Types of pump
2.1.1 Rotary pumps
2.1.2 Reciprocating pumps
2.1.3 Variable-displacement pump-control systems
2.1.4 Pump selection
2.2 Pumping circuits
2.2.1 Single fixed-displacement pump
2.2.2 Single fixed-displacement pump with accumulator
2.2.3 Multi-pump
2.2.4 Variable-delivery pump
2.3 Pump drives
2.4 Pump circuit design study
3 HYDRAULIC VALVES
3.1 Pressure-control valves
3.1.1 Relief valves
3.1.2 Counterbalance valves
3.1.3 Pressure sequence valves
3.1.4 Pressure-reducing valves
3.2 Flow-control valves
3.2.1 Speed control of a cylinder
3.2.2 Three-port or bypass-type flow-control valve
3.2.3 Priority flow control
3.2.4 Bridge networks
3.2.5 Multi-speed systems using flow-control valves
3.2.6 Flow dividers
Viii
3.3 Directional control valves
3.3.1 Check valves
3.3.2 Poppet valves
3.3.3 Sliding spool-type directional control valves
3.3.4 Two-stage directional control valves
3.3.5 Valve sizes and nomenclature
3.4 Cartridge valves
3.4.1 Poppet-type cartridge valves
3.4.2 Spool-type cartridge valves
3.5 Mobile hydraulic valves
3.5.1 Valve arrangements
4 ACTUATORS
4.1 Hydraulic cylinders
4.1.1 Displacement cylinders
4.1.2 Single-acting cylinders
4.1.3 Double-acting cylinders
4.1.4 Acceleration and deceleration of cylinder loads
4.1.5 Cylinder mountings and strength calculations
4.2 Semi-rotary actuators
4.2.1 Vane-type actuators
4.2.2 Piston-type actuators
4.2.3 Helical screw actuator
4.2.4 Control of semi-rotary actuators
4.3 Hydraulic motors
4.3.1 Generated form types
4.3.2 Piston-type motors
4.4 Hydraulic motor circuits
4.4.1 Open circuit transmissions
4.4.2 Closed-loop transmissions
4.4.3 Multi-motor circuits
4.5 Motor circuit design examples
5 FLUIDS FOR HYDRAULIC SYSTEMS
5.1 Hydraulic fluids
5.1.1 An outline of the development of hydraulic fluids
5.1.2 Properties of hydraulic fluids
5.1.3 Hydraulic fluids survey
5.1.4 Future developments
5.2 Fluid contamination control
5.2.1 Energy contamination
5.2.2 Gaseous contamination
5.2.3 Liquid contamination
5.2.4 Microbiological contamination
5.2.5 Particulate contamination (dirt)
5.3 Filter construction and filtration technology
5.3.1 Filter construction
5.3.2 Filtration technology
5.3.3 Filter location
5.3.4 Filter sizing
8.2.3 System response
ix
5.4 Leakage control 214
5.4.1 Hydraulic conduits 214
5.4.2 High-pressure tube connections Dla
5.4.3 Hydraulic hoses DO
5.4.4 Supports and clamps 230
5.4.5 Circuit accessories 230
5.4.6 Pipework elimination and simplification 232
5.4.7 Seal protection 233
5.4.8 Rules for leakage control 234
6 HYDRAULIC SYSTEM DESIGN 235
6.1 Design criteria 235
6.1.1 Design information required 236
6.2 Summary of basic formulae and rules 23m
6.2.1 Fluid flow 237)
6.2.2 Pressure losses 240
6.2.3 Cylinder formulae 241
6.2.4 Pump formulae 242
6.2.5 Hydraulic motor formulae 244
6.3 Power-pack design 245
6.3.1 Layout 245
6.3.2 Reservoirs 247
6.3.3 Centralized hydraulic systems 253
6.4 Hydraulic accumulators 254
6.4.1 Types of accumulators 254
6.4.2 Accumulator applications 259
6.4.3 Operation and safety precautions 265
6.5 Hydraulic intensifiers 267
6.6 Design study—a simple hydraulic press 268
6.7 Design study—conveyor feed system 287
HYDRAULIC SYSTEM MAINTENANCE 296
7.1 Equipment and practices which benefit maintenance 296
7.1.1 Good housekeeping practice 296
7.1.2 Fluid storage and handling 300
7.1.3 Installations and commissioning of hydraulic systems 301
7.1.4 Routine maintenance 303
7.2 Trouble shooting in hydraulic systems 304
7.2.1 Test equipment 304
7.2.2 General rules for hydraulic maintenance engineers 305
7.2.3 The concept of logical fault finding 305
7.3 Solutions to fault-finding exercises 323
8 CONTROL SYSTEMS 328
8.1 Servo control 329
8.2 Valve servo systems 330
8.2.1 Valve lap
330
8.2.2 Mechanical feedback
331
333
Contents
X Sa I eee
8.3
8.4
8.5
8.6
8.2.4 Electro-hydraulic servo valves
8.2.5 System response and stability
Pump servo systems
8.3.1 Effect of leakage
8.3.2 Effect of compressibility
8.3.3 Natural frequency
8.3.4 Hydraulic stiffness
8.3.5 Damping ratio
Proportional valves
8.4.1 Force control
8.4.2 Force position control
8.4.3 Spool positional control
8.4.4 Proportional pressure control
8.4.5 Two-stage proportional valves
8.4.6 Proportional flow control
8.4.7 Electrical control of proportional valves
Proportional versus servo valves
8.5.1 Response speed and dynamic characteristics
8.5.2 Hysteresis effect
8.5.3 Null position
Some applications of proportional control valves
8.6.1 Control of actuators
8.6.2 Pump control systems
APPENDIX EXERCISES AND SOLUTIONS
A.1 Circuitry questions
A.2 Hydraulic calculations
A.3 Design problems
A.4 Solutions to Section A.2
FURTHER READING
INDEX
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EBOOK - Power Hydraulics (Michael J. Pinches) 1989 (Bản dịch Tiếng Việt)
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