Page 9 - Modern Control Systems

Contents

Preface xi
About the Authors xxii

CHAPTER 1 Introduction to Control Systems 1

1.1 Introduction 2
1.2 Brief History of Automatic Control 5
1.3 Examples of Control Systems 10
1.4 Engineering Design 17
1.5 Control System Design 18
1.6 Mechatronic Systems 21
1.7 Green Engineering 25
1.8 The Future Evolution of Control Systems 27
1.9 Design Examples 28
1.10 Sequential Design Example: Disk Drive Read System 32
1.11 Summary 34
Skills Check 35 • Exercises 37 • Problems 39 • Advanced
Problems 44 • Design Problems 46 • Terms and Concepts 48

CHAPTER 2 Mathematical Models of Systems 49

2.1 Introduction 50
2.2 Differential Equations of Physical Systems 50
2.3 Linear Approximations of Physical Systems 55
2.4 The Laplace Transform 58
2.5 The Transfer Function of Linear Systems 65
2.6 Block Diagram Models 79
2.7 Signal-Flow Graph Models 84
2.8 Design Examples 90
2.9 The Simulation of Systems Using Control Design Software 113
2.10 Sequential Design Example: Disk Drive Read System 128
2.11 Summary 130
Skills Check 131 • Exercises 135 • Problems 141 • Advanced
Problems 153 • Design Problems 155 • Computer Problems 157 •
Terms and Concepts 159

CHAPTER 3 State Variable Models 161

3.1 Introduction 162
3.2 The State Variables of a Dynamic System 162