Roy Langton

Stability and Control of Aircraft Systems (eBook, PDF)

Introduction to Classical Feedback Control

• Format: PDF

Produktbeschreibung

In the current climate of increasing complexity and functional integration in all areas of engineering and technology, stability and control are becoming essential ingredients of engineering knowledge. Many of today's products contain multiple engineering technologies, and what were once simple mechanical, hydraulic or pneumatic products now contain integrated electronics and sensors. Control theory reduces these widely varied technical components into their important dynamic characteristics, expressed as transfer functions, from which the subtleties of dynamic behaviours can be analyzed and understood. Stability and Control of Aircraft Systems is an easy-to-read and understand text that describes control theory using minimal mathematics. It focuses on simple rules, tools and methods for the analysis and testing of feedback control systems using real systems engineering design and development examples. * Clarifies the design and development of feedback control systems * Communicates the theory in an accessible manner that does not require the reader to have a strong mathematical background * Illustrated throughout with figures and tables Stability and Control of Aircraft Systems provides both the seasoned engineer and the graduate with the know-how necessary to minimize problems with fielded systems in the area of operational performance.

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Produktdetails

• Verlag: John Wiley & Sons
• Seitenzahl: 254
• Erscheinungstermin: 2. November 2006
• Englisch
• ISBN-13: 9780470058497
• Artikelnr.: 37290157

Autorenporträt

Roy Langton has recently retired from his position as Vice-President, Engineering & Integrity at Parker Aerospace, where he was responsible for internal seminars & training into feedback control.

Inhaltsangabe

Series Preface. Preface. 1. Developing the Foundation. 1.1 Engineering
Units. 1.1.1 International System of Units (SI). 1.1.2 US/Imperial Units
System. 1.1.3 Comparing the SI and US/Imperial Units Systems. 1.2 Block
Diagrams. 1.2.1 Examples of Summation (or Comparison) Devices. 1.3
Differential Equations. 1.3.1 Using the 'D' Notation. 1.4 Spring-Mass
System Example. 1.4.1 The Standard Form of Second-order System Transfer
Function. 1.5 Primer on Complex Numbers. 1.5.1 The Complex Sinusoid. 1.6
Chapter Summary. 2. Closing the Loop. 2.1 The Generic Closed Loop System.
2.1.1 The Simplest Form of Closed Loop System. 2.2 The Concept of
Stability. 2.3 Response Testing of Control Systems. 2.4 The Integration
Process. 2.5 Hydraulic Servo-actuator Example. 2.6 Calculating Frequency
Response. 2.6.1 Frequency Response of a First-order Lag. 2.6.2 Frequency
Response of a Second-order System. 2.7 Aircraft Flight Control System
Example. 2.7.1 Control System Assumptions. 2.7.2 Open Loop Analysis. 2.7.3
Closed Loop Performance. 2.8 Alternative Graphical Methods for Response
Analysis. 2.8.1 The Nyquist Diagram. 2.8.2 Deriving Closed Loop Response
from Nyquist Diagrams. 2.8.3 The Nichols Chart. 2.8.4 Graphical Methods -
Summary Comments and Suggestions. 2.9 Chapter Summary. 3. Control System
Compensation Techniques. 3.1 Control System Requirements. 3.2 Compensation
Methods. 3.2.1 Proportional Plus Integral Control. 3.2.2 Proportional Plus
Integral Plus Derivative Control. 3.2.3 Lead-Lag Compensation. 3.2.4
Lag-Lead Compensation. 3.2.5 Feedback Compensation. 3.3 Applications of
Control Compensation. 3.3.1 Proportional Plus Integral Example. 3.3.2
Lead-Lag Compensation Example. 3.3.3 Class 2 System Design Example. 3.4
Chapter Summary. 4. Introduction to Laplace Transforms. 4.1 An Overview of
the Application of Laplace Transforms. 4.2 The Evolution of the Laplace
Transform. 4.2.1 Proof of the General Case. 4.3 Applying Laplace Transforms
to Linear Systems Analysis. 4.3.1 Partial Fractions. 4.4 Laplace Transforms
- Summary of Key Points. 4.5 Root Locus. 4.5.1 Root Locus Construction
Rules. 4.5.2 Connecting Root Locus to Conventional Linear Analysis. 4.6
Root Locus Example. 4.7 Chapter Summary. 5. Dealing with Nonlinearities.
5.1 Definition of Nonlinearity Types. 5.2 Continuous Nonlinearities. 5.2.1
Engine Fuel Control System Example. 5.3 Discontinuous Nonlinearities. 5.3.1
Stability Analysis with Discontinuous Nonlinearities. 5.4 The Transport
Delay. 5.5 Simulation. 5.6 Chapter Summary. 6. Electronic Controls. 6.1
Analog Electronic Controls. 6.1.1 The Operational Amplifier. 6.1.2 Building
Analog Control Algorithms. 6.2 The Digital Computer as a Dynamic Control
Element. 6.2.1 Signal Conversion. 6.2.2 Digital Controller Architectures.
6.3 The Stability Impact of Digital Controls. 6.4 Digital Control Design
Example. 6.5 Creating Digital Control Algorithms. 6.5.1 The Integrator.
6.5.2 The First-order Lag. 6.5.3 The Pseudo Derivative. 6.6 Chapter
Summary. 7. Concluding Commentary. 7.1 An Overview of the Material. 7.2
Graphical Tools. 7.3 Compensation Techniques. 7.3.1 Integral Wind-up. 7.3.2
Avoid Using Pure Derivative Action. 7.3.3 Mechanical Stiffness Estimates
are Always High. 7.4 Laplace Transforms and Root Locus Techniques. 7.5
Nonlinearities. 7.6 Digital Electronic Control. 7.7 The Way Forward. Index.

Rezensionen

"Armed with the details in this book a new practitioner could enter any control laboratory and be effective." ( The Aeronautical Journal , March 2008)