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出版社:电子工业出版社
出版日期:2012-7
ISBN:9787121170652
页数:1103页
章节摘录
版权页: 插图: A fluid flow system is shown in Figure 2.38.The reservoir(or tank)contains water that evacuates through an output port.Water is fed to the reservoir through a pipe controlled by an input valve.The variables of interest are the fluid velocity V(m/s),fluid height in the reservoir H(m),and pressure p(N/m2).The pressure is defined as the force per unit area exerted by the fluid on a surface immersed(and at rest with respect to)the fluid.Fluid pressure acts normal to the surface.For further reading on fluid flow modeling. The elements of the control system design process emphasized in this example are shown in Figure 2.39.The strategy is to establish the system configuration and then obtain the appropriate mathematical models describing the fluid flow reservoir from an input-output perspective. The general equations of motion and energy describing fluid tlow are quite complicated.The governing equations are coupled nonlinear partial differential equations.We must make some selective assumptions that reduce the complexity of the mathematical model.Although the control engineer is not required to be a fluid dynamicist,and a deep understanding of fluid dynamics is not necessarily acquired during the control system design proccss,it makes good engineering sense to gain at least a rudimentary understanding of the important simplifying assumptions.For a more complete discussion ot fluid motion. To obtain a realistic,yet tractable,mathematical model for the fluid flow reservoir,we first make several key assumptions.We assume that the water in the tank is incompressible and that the flow is inviscid,irrotational and steady.An incompressible fluid has a constant density p(kg/m3).In fact,all fluids are compressible to some extent.The compressibility factor,k,is a measure of the compressibility of a fluid.A smaller value of k indicates less compressibility.
内容概要
作者:(美)Richard C. Dorf,(美)Robert H. Bishop
书籍目录
CHAPTER 1 Introduction to Control Systems
1.1 Introduction
1.2 Brief History of Automatic Control
1.3 Examples of Control Systems
1.4 Engineering Design
1.5 Control System Design
1.6 Mechatronic Systems
1.7 Green Engineering
1.8 The Future Evolution of Control Systems
1.9 Design Examples
1.10 Sequential Design Example: Disk Drive Read System
1.11 Summary
CHAPTER 2 Mathematical Models of Systems
2.1 Introduction
2.2 Differential Equatio of Physical Systems
2.3 Linear Approximatio of Physical Systems
2.4 The Laplace Traform
2.5 The Trafer Function of Linear Systems
2.6 Block Diagram Models
2.7 Signal-Flow Graph Models
2.8 Design Examples
2.9 The Simulation of Systems Using Control Design Software
2.10 Sequential Design Example: Disk Drive Read System
2.11 Summary
CHAPTER 3 State Variable Models
3.1 Introduction
3.2 The State Variables of a Dynamic System
3.3 The State Differential Equation
3.4 Signal-Flow Graph and Block Diagram Models
3.5 Alternative Signal-Flow Graph and Block Diagram Models
3.6 The Trafer Function from the State Equation
3.7 The Time Respoe and the State Traition Matrix
3.8 Design Examples
3.9 Analysis of State Variable Models Using Control Design
Software
3.10 Sequential Design Example: Disk Drive Read System
3.11 Summary
CHAPTER 4 Feedback Control System Characteristics
4.1 Introduction
4.2 Error Signal Analysis
4.3 Seitivity of Control Systems to Parameter Variatio
4.4 Disturbance Signals in a Feedback Control System
4.5 Control of the Traient Respoe
4.6 Steady-State Error
4.7 The Cost of Feedback
4.8 Design Examples
4.9 Control System Characteristics Using Control Design Software
4.10 Sequential Design Example: Disk Drive Read System
4.11 Summary
CHAPTER 5 The Performance of Feedback Control Systems
5.1 Introduction
5.2 Test Input Signals
5.3 Performance of Second-Order Systems
5.4 Effects of a Third Pole and a Zero on the Second-Order System
Respoe
5.5 The s-Plane Root Location and the Traient Respoe
5.6 The Steady-State Error of Feedback Control Systems
5.7 Performance Indices
5.8 The Simplification of Linear Systems
5.9 Design Examples
5.10 System Performance Using Control Design Software
5.11 Sequential Design Example: Disk Drive Read System
5.12 Summary
CHAPTER 6 The Stability of Linear Feedback Systems
6.1 The Concept of Stability
6.2 The Routh–Hurwitz Stability Criterion
6.3 The Relative Stability of Feedback Control Systems
6.4 The Stability of State Variable Systems
6.5 Design Examples
6.6 System Stability Using Control Design Software
6.7 Sequential Design Example: Disk Drive Read System
6.8 Summary
CHAPTER 7 The Root Locus Method
7.1 Introduction
7.2 The Root Locus Concept
7.3 The Root Locus Procedure
7.4 Parameter Design by the Root Locus Method
7.5 Seitivity and the Root Locus
7.6 PID Controlle
7.7 Negative Gain Root Locus
7.8 Design Examples
7.9 The Root Locus Using Control Design Software
7.10 Sequential Design Example: Disk Drive Read System
7.11 Summary
CHAPTER 8 Frequency Respoe Methods
8.1 Introduction
8.2 Frequency Respoe Plots
8.3 Frequency Respoe Measurements
8.4 Performance Specificatio in the Frequency Domain
8.5 Log Magnitude and Phase Diagrams
8.6 Design Examples
8.7 Frequency Respoe Methods Using Control Design Software
8.8 Sequential Design Example: Disk Drive Read System
8.9 Summary
CHAPTER 9 Stability in the Frequency Domain
9.1 Introduction
9.2 Mapping Contou in the s-Plane
9.3 The Nyquist Criterion
9.4 Relative Stability and the Nyquist Criterion
9.5 Time-Domain Performance Criteria in the Frequency Domain
9.6 System Bandwidth
9.7 The Stability of Control Systems with Time Delays
9.8 Design Examples
9.9 PID Controlle in the Frequency Domain
9.10 Stability in the Frequency Domain Using Control Design
Software
9.11 Sequential Design Example: Disk Drive Read System
9.12 Summary
CHAPTER 10 The Design of Feedback Control Systems
10.1 Introduction
10.2 Approaches to System Design
10.3 Cascade Compeation Networks
10.4 Phase-Lead Design Using the Bode Diagram
10.5 Phase-Lead Design Using the Root Locus
10.6 System Design Using Integration Networks
10.7 Phase-Lag Design Using the Root Locus
10.8 Phase-Lag Design Using the Bode Diagram
10.9 Design on the Bode Diagram Using Analytical Methods
10.10 Systems with a Prefilter
10.11 Design for Deadbeat Respoe
10.12 Design Examples
10.13 System Design Using Control Design Software
10.14 Sequential Design Example: Disk Drive Read System
10.15 Summary
CHAPTER 11 The Design of State Variable Feedback Systems
11.1 Introduction
11.2 Controllability and Observability
11.3 Full-State Feedback Control Design
11.4 Observer Design
11.5 Integrated Full-State Feedback and Observer
11.6 Reference Inputs
11.7 Optimal Control Systems
11.8 Internal Model Design
11.9 Design Examples
11.10 State Variable Design Using Control Design Software
11.11 Sequential Design Example: Disk Drive Read System
11.12 Summary
CHAPTER 12 Robust Control Systems
12.1 Introduction
12.2 Robust Control Systems and System Seitivity
12.3 Analysis of Robustness
12.4 Systems with Uncertain Paramete
12.5 The Design of Robust Control Systems
12.6 The Design of Robust PID-Controlled Systems
12.7 The Robust Internal Model Control System
12.8 Design Examples
12.9 The Pseudo-Quantitative Feedback System
12.10 Robust Control Systems Using Control Design Software
12.11 Sequential Design Example: Disk Drive Read System
12.12 Summary
CHAPTER 13 Digital Control Systems
13.1 Introduction
13.2 Digital Computer Control System Applicatio
13.3 Sampled-Data Systems
13.4 The z-Traform
13.5 Closed-Loop Feedback Sampled-Data Systems
13.6 Performance of a Sampled-Data, Second-Order System
13.7 Closed-Loop Systems with Digital Computer Compeation
13.8 The Root Locus of Digital Control Systems
13.9 Implementation of Digital Controlle
13.10 Design Examples
13.11 Digital Control Systems Using Control Design Software
13.12 Sequential Design Example: Disk Drive Read System
13.13 Summary
APPENDIX A MATLAB Basics
References
Index
编辑推荐
《国外计算机科学教材系列:现代控制系统(英文版)(第12版)》是国外计算机科学系列教材的英文版,由电子工业出版社出版,是控制系统原理及相近课程是高等学校工科学生的核心课程之一。《国外计算机科学教材系列:现代控制系统(英文版)(第12版)》可作为高等学校工科(自动化、航空航天、电力、机械、化工等)本科高年级学生和研究生的双语教学教材,也可供从事相关工作的人员作为参考用书使用。
作者简介
《国外计算机科学教材系列:现代控制系统(英文版)(第12版)》一直是该类课程畅销全球的教材范本,主要介绍了控制系统工程的多种模型和反馈控制系统的特性、性能、以及稳定性等设计。《国外计算机科学教材系列:现代控制系统(英文版)(第12版)》的例子和习题大多取材于现代科技领域中的实际问题,新颖而恰当。学习和解决这些问题,可以使学生的创造性精神得到潜移默化的提升。
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