Noah D. Manring, Roger C. Fales

Hydraulic Control Systems (eBook, PDF)

• Format: PDF

Produktbeschreibung

Provides key updates to a must-have text on hydraulic control systems This fully updated, second edition offers students and professionals a reliable and comprehensive guide to the hows and whys of today's hydraulic control system fundamentals. Complete with insightful industry examples, it features the latest coverage of modeling and control systems with a widely accepted approach to systems design. The book also offers all new information on: advanced control topics; auxiliary components (reservoirs, accumulators, coolers, filters); hybrid transmissions; multi-circuit systems; and digital hydraulics. Chapters in Hydraulic Control Systems, 2nd Edition cover; fluid properties; fluid mechanics; dynamic systems and control; hydraulic valves, pumps, and actuators; auxiliary components; and both valve and pump controlled hydraulic systems. The book presents illustrative case studies throughout that highlight important topics and demonstrate how equations can be implemented and used in the real world. It also features end-of-chapter exercises to help facilitate learning. It is a powerful tool for developing a solid understanding of hydraulic control systems that will serve all practicing engineers in the field. * Provides a useful review of fluid mechanics and system dynamics * Offers thorough analysis of transient fluid flow forces within valves * Adds all new information on: advanced control topics; auxiliary components; hybrid transmissions; multi-circuit systems; and digital hydraulics * Discusses flow ripple for both gear pumps and axial piston pumps * Presents updated analysis of the pump control problems associated with swash plate type machines * Showcases a successful methodology for hydraulic system design * Features reduced-order models and PID controllers showing control objectives of position, velocity, and effort Hydraulic Control Systems, 2nd Edition is an important book for undergraduate and first-year graduate students taking courses in fluid power. It is also an excellent resource for practicing engineers in the field of fluid power.

---

Dieser Download kann aus rechtlichen Gründen nur mit Rechnungsadresse in A, B, BG, CY, CZ, D, DK, EW, E, FIN, F, GR, HR, H, IRL, I, LT, L, LR, M, NL, PL, P, R, S, SLO, SK ausgeliefert werden.

Produktdetails

• Verlag: John Wiley & Sons
• Seitenzahl: 416
• Erscheinungstermin: 14. August 2019
• Englisch
• ISBN-13: 9781119416487
• Artikelnr.: 57625765

Autorenporträt

NOAH D. MANRING, PHD, is the Glen A. Barton Professor of fluid power and chair in the Mechanical and Aerospace Engineering Department at the University of Missouri. A former engineer for Caterpillar Inc. and Danfoss Power Solutions (formerly Sauer Sundstrand), he has experience developing hydraulic pumps and fluid power systems and controls. ROGER C. FALES, PHD, is an Associate Professor in the Mechanical and Aerospace Engineering Department at the University of Missouri. A former engineer for Caterpillar Inc., he has experience developing fluid power and off-highway machine systems and controls.

Inhaltsangabe

Preface to the Second Edition xv

Preface to the First Edition xvii

Introduction xix

I Fundamentals 1

1 Fluid Properties 3

1.1 Introduction 3

1.2 Fluid Mass Density 3

1.2.1 Equation of State 3

1.2.2 Density-Volume Relationship 4

1.3 Fluid Bulk Modulus 5

1.3.1 Definitions 5

1.3.2 Effective Bulk Modulus 7

1.3.3 Measuring the Fluid Bulk Modulus 16

1.4 Thermal Fluid Properties 19

1.4.1 Coefficient of Thermal Expansion 19

1.4.2 Thermal Conductivity 23

1.4.3 Specific Heat 24

1.5 Fluid Viscosity 25

1.5.1 Definitions 25

1.5.2 Viscous Drag Coefficient 27

1.5.3 Viscosity Charts and Models 27

1.6 Vapor Pressure 29

1.7 Chemical Properties 29

1.8 Fluid Types and Selection 30

1.8.1 Petroleum-Based Fluids 30

1.8.2 Synthetic Fluids 30

1.8.3 Biodegradable Fluids 30

1.8.4 Water 31

1.8.5 Fluid Selection 31

1.9 Conclusion 32

1.10 References 32

1.11 Homework Problems 32

1.11.1 Fluid Mass Density 32

1.11.2 Fluid Bulk Modulus 33

1.11.3 Thermal Fluid Properties 33

1.11.4 Fluid Viscosity 34

2 Fluid Mechanics 35

2.1 Introduction 35

2.2 Governing Equations 35

2.2.1 Navier-Stokes Equations 35

2.2.2 High Reynolds Number Flow 36

2.2.3 Low Reynolds Number Flow 38

2.2.4 Turbulent versus Laminar Flow 41

2.2.5 Control Volume Analysis 42

2.3 Fluid Flow 47

2.3.1 The Reynolds Number 47

2.3.2 Bernoulli Flow and the Orifice Equation 48

2.3.3 Poiseuille Flow and the Annular Leakage Equation 50

2.3.4 Pipe Flow 56

2.4 Pressure Losses 60

2.4.1 Major Losses 60

2.4.2 Minor Losses 60

2.5 Pressure Transients 66

2.5.1 Hydraulic Conduits 66

2.5.2 Water Hammer 68

2.5.3 Pressure Rise Rates within a Varying Control Volume 70

2.6 Hydraulic Energy and Power 72

2.6.1 Fluid Power 72

2.6.2 Heat Generation in Hydraulic Systems 73

2.7 Lubrication Theory 74

2.8 Conclusion 77

2.9 References 78

2.10 Homework Problems 78

2.10.1 Governing Equations 78

2.10.2 Fluid Flow 78

2.10.3 Fluid Pressure 79

2.10.4 Fluid Power 79

3 Dynamic Systems and Control 81

3.1 Introduction 81

3.2 Modeling 81

3.2.1 General 81

3.2.2 Mechanical Systems 82

3.2.3 Hydromechanical Systems 83

3.2.4 Electromechanical Systems 84

3.2.5 Summary 85

3.3 Linearization 85

3.3.1 General 85

3.3.2 The Taylor Series Expansion 86

3.3.3 Examples of Linearization 87

3.4 Dynamic Behavior 88

3.4.1 First-Order Response 88

3.4.2 Second-Order Response 92

3.4.3 Higher-Order Response 102

3.5 State Space Analysis 103

3.5.1 General 103

3.5.2 State Space Equations 103

3.5.3 Characteristic Equation 104

3.6 Block Diagrams and the Laplace Transform 104

3.6.1 General 104

3.6.2 Laplace Transform 104

3.6.3 Partial Fraction Expansion 107

3.6.4 Block Diagrams 110

3.7 Stability 119

3.7.1 General 119

3.7.2 Stability Criterion 119

3.7.3 Summary 123

3.8 Feedback Control 123

3.8.1 General 123

3.8.2 PID Contro