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现代控制工程课后答案（英文原版）

现代控制工程

课后答案

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《现代控制工程》的英文版课后习题答案，（MODERN CONTROL SYSTEMS SOLUTION MANUAL）（文字版非扫描可复制）

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MODERN CONTROL SYSTEMS

SOLUTION MANUAL

Richard C. Dorf Robert H. Bishop

University of California, Davis The University of Texas at Austin

A companion to

MODERN CONTROL SYSTEMS

ELEVENTH EDITION

Richard C. Dorf

Robert H. Bishop

Prentice Hall

Upper Saddle River, NJ 07458

Solutions Manual to Accompany Modern Control Systems, Eleventh Edition, by Richard C Dorf and Robert H. Bishop.

This material is protected by Copyright and written permission should be obtained from the publisher prior to any prohibited reproduction, storage in a

retrieval system, or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise.

For information regarding permission(s), write to: Rights and Permissions Department, Pearson Education, Inc., Upper Saddle River, NJ 07458.

2008 by Prentice-Hall, Inc .

Upper Saddle River, New Jersey 0745 8

permission in writing from the publisher.

The author and publisher of this book have used their b e st eﬀorts in preparing this book. These

eﬀorts include the development, research, and testing of the theories a nd programs to determine their

eﬀectiveness. The author and publisher shall not be liable in any event for incidental or consequential

damages in connection with, or arising out of the furnishing, performance, or use of these programs.

Camera-ready copy for this manual was prepared by the author using L

X 2

MATLAB is a registered trademark of The MathWorks, Inc.

24 Prime Park Way, Natick, MA 0 1760-1520.

Phone. (508) 653-1415, Fax: (508) 653- 2997

Email: info@mathwor k.com

LabVIEW MathScript is a registered trademark of the National Instruments Corporation

11500 N Mopa c Expwy, Austin, TX 78759-35 04

Phone. (800) 531-5066, Fax: (512) 683- 8411

E-mail: info@ni.com

Printed in the United States of America

10 9 8 7 6 5 4 3 2 1

ISBN 0-13-227029-3

Pearson Education Limited (UK)

Pearson Education Australia Pty Ltd

Prentice Hall Canada Ltd

Pearson Educacion de Mexico, S.A. de C.V.

Pearson Education Japan KK

Pearson Education China Ltd

Solutions Manual to Accompany Modern Control Systems, Eleventh Edition, by Richard C Dorf and Robert H. Bishop.

This material is protected by Copyright and written permission should be obtained from the publisher prior to any prohibited reproduction, storage in a

retrieval system, or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise.

For information regarding permission(s), write to: Rights and Permissions Department, Pearson Education, Inc., Upper Saddle River, NJ 07458.

P R E F A C E

In each chapter, there are ﬁve problem types:

Exercises

Problems

Advanced Problems

Design Problems/Continuous Design Problem

Computer Problems

In total, there are over 850 problems. The abundance of problems of in-

creasing complexity gives students conﬁdence in their problem-solving

ability as they work their way f rom the exercises to the design and

computer-based problems.

It is assumed that instructors (and students) have access to MATLAB,

the Control System Toolbox or the LabVIEW and MathScript. All of the

comptuer solutions in this Solution Manual were developed and tested on

a Window XP platform using MATLAB 7.3 Release 2006b and the Control

System Toolbox Version 7.1 and LabVIEW 8.2. It is not possible to verify

each solution on all the available computer platforms that are compatible

with MATLAB and LabVIEW MathScript. Please forward any incompati-

bilities you encounter with the scripts to Prof. Bishop at the email address

given below.

The authors and the staﬀ at Prentice Hall would like to establish an

open line of communication w ith the instructors using Modern Control

Systems. We encourage you to contact Prentice Hall with comments and

suggestions for this and future editions.

Robert H. Bishop rhbishop@mail.utexas.edu

iii

Solutions Manual to Accompany Modern Control Systems, Eleventh Edition, by Richard C Dorf and Robert H. Bishop.

This material is protected by Copyright and written permission should be obtained from the publisher prior to any prohibited reproduction, storage in a

retrieval system, or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise.

For information regarding permission(s), write to: Rights and Permissions Department, Pearson Education, Inc., Upper Saddle River, NJ 07458.

T A B L E - O F - C O N T E N T S

1. Introduction to Control Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

2. Mathematical Models of Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3. State Variable Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

4. Feedback Control Sys tem Characteristics . . . . . . . . . . . . . . . . . . . . . . . 126

5. The Performance of Feedback Control Systems . . . . . . . . . . . . . . . . . 166

6. The Stability of Linear Feedback Systems . . . . . . . . . . . . . . . . . . . . . . 216

7. The Root Locus Metho d . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257

8. Frequency Response Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 359

9. Stability in the Frequency Domain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 420

10. The Design of Feedback Control Systems . . . . . . . . . . . . . . . . . . . . . . . 492

11. The Design of State Variable Feedback Systems . . . . . . . . . . . . . . . . 574

12. Robust Control Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 633

13. Digital Control Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 691

Solutions Manual to Accompany Modern Control Systems, Eleventh Edition, by Richard C Dorf and Robert H. Bishop.

This material is protected by Copyright and written permission should be obtained from the publisher prior to any prohibited reproduction, storage in a

retrieval system, or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise.

For information regarding permission(s), write to: Rights and Permissions Department, Pearson Education, Inc., Upper Saddle River, NJ 07458.

C H A P T E R 1

Introduction to Control Systems

There are, in general, no un ique solutions to the following exercises and

problems. Other equally valid block diagrams may be submitted by the

student.

Exercises

E1.1 A microprocessor controlled laser system:

Controller

Error

Current i(t)

Power

out

Desired

power

output

Measured

power

Laser

Process

processor

Micro-

Power

Sensor

Measurement

E1.2 A driver controlled cruise control system:

Desired

speed

Foot pedal

Actual

auto

speed

Visual indication

of speed

Controller

Process

Measurement

Driver

Car and

Engine

Speedometer

E1.3 Although the principle of conservation of momentum explains much of

the process of ﬂy-casting, there does not exist a comprehensive scientiﬁc

explanation of how a ﬂy-ﬁsher uses the small backwar d and forward mo-

tion of the ﬂy rod to cast an almost weightless ﬂy lure long distances (the

Solutions Manual to Accompany Modern Control Systems, Eleventh Edition, by Richard C Dorf and Robert H. Bishop.

This material is protected by Copyright and written permission should be obtained from the publisher prior to any prohibited reproduction, storage in a

retrieval system, or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise.

For information regarding permission(s), write to: Rights and Permissions Department, Pearson Education, Inc., Upper Saddle River, NJ 07458.

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