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《Automatic Flight Control Systems》
自动飞行控制系统
作者:
Donald McLean
Westland Professor of Aeronautics
University of Southampton, UK
出版社:Hall
出版时间:1990年
《Automatic Flight Control Systems》
《Automatic Flight Control Systems》
《Automatic Flight Control Systems》
《Automatic Flight Control Systems》
目录
3.2 Longitudinal Stability
vi Contents
Static Stability
Tranfer Functions Related to Longitudinal Motion
Transfer Functions Obtained from Short Period
Approximation
Transfer Functions Obtained from Phugoid
Approximation
Lateral Stability
Transfer Functions Related to Lateral Motion
Three Degrees of Freedom Approximations
Two Degrees of Freedom Approximations
Single Degree of Freedom Approximation
State Equation Formulation to Emphasize Lateral/
Directional Effects
Conclusions
Exercises
Notes
References
4 The Dynamic Effects of Structural Flexibility Upon the
Motion of an Aircraft
Introduction
Bending Motion of the Wing
Torsion of the Wing
Coupled Motions
The Dynamics of a Flexible Aircraft
Mathematical Representation of the Dynamics of a
Flexible Aircraft
Lift Growth Effects
Bending Moments
Blade Flapping Motion
Conclusion
Exercises
Notes
References
5 Disturbances Affecting Aircraft Motion
Introduction
Atmospheric Disturbances
A Discrete Gust Function
Power Spectral Density Functions
Continuous Gust Representations
State Variable Models
Angular Gust Equations
The Effects of Gusts on Aircraft Motion
Contents
5.9 Transient Analogue
5.10 Determination of the r.m.s. Value of Acceleration
as a Result of Encountering Gusts
5.11 Wind Shear and Microbursts
5.12 Sensor Noise
5.13 Conclusions
5.14 Exercises
5.15 References
6 Flying and Handling Qualities
6.1 Introduction
6.2 Some Definitions Required for Use with Flying
Qualities' Specifications
6.3 Longitudinal Flying Qualities
6.4 LateraVDirectional Flying Qualities
6.5 The C * Criterion
6.6 Ride Discomfort Index
6.7 Helicopter Control and Flying Qualities
6.8 Conclusions
6.9 Exercises
6.10 References
7 Control System Design Methods I
AFCS as a Control Problem
Generalized AFCS
Conventional Control Methods
Parameter Optimization
Conclusions
Exercises
Note
References
8 Control System Design Methods I1
Introduction
The Meaning of Optimal Control
Controllability, Observability and Stabilizability
Theory of the Linear Quadratic Problem
Optimal Output Regulator Problem
State Regulators with a Prescribed Degree of
Stability
Explicit Model-Following
Optimal Command Control System
Use of Integral Feedback in LQP
viii Contents
8.10 State Reconstruction
8.11 Conclusions
8.12 Exercises
8.13 Notes
8.14 References
9 Stability Augmentation Systems
Introduction
Actuator Dynamics
Sensor Dynamics
Longitudinal Control (Use of Elevator Only)
Other Longitudinal Axis SASS
Sensor Effects
Scheduling
Lateral Control
Conclusions
Exercises
Notes
Reference
10 Attitude Control Systems
Introduction
Pitch Attitude Control Systems
Roll Angle Control Systems
Wing Leveller
Co-ordinated Turn Systems
Sideslip Suppression Systems
Directional Stability During Ground Roll
Conclusions
Exercises
Notes
References
I1 Flight Path Control Systems
Introduction
Height Control Systems
Speed Control Systems
Mach Hold System
Direction Control System
Heading Control System
VOR-Coupled Automatic Tracking System
ILS Localizer-Coupled Control System
ILS Glide-Path-Coupled Control System
Contents
11.10 Automatic Landing System
11.11 A Terrain-Following Control System
11.12 Conclusions
11.13 Exercises
11.14 Notes
11.15 References
12 Active Control Systems
Introduction
ACT Control Funtions
Some Benefits Expected from ACT
Gust Alleviation
Load Alleviation System for a Bomber Aircraft
A Ride Control System for a Modern Fighter
Aircraft
Aircraft Positioning Control Systems
Conclusions
Exercises
Note
References
13 Helicopter Flight Control Systems
Introduction
Equations of Motion
Static Stability
Dynamic Stability
Stability Augmentation Systems
Conclusions
Exercises
Notes
References
14 Digital Control Systems
Introduction
A Simple Discrete Control System
A Data Hold Element
The z-Transform
Bilinear Transformations
Discrete State Equation
Stability of Digital Systems
Optimal Discrete Control
Use of Digital Computers in AFCSs
Conclusions
Contents
14.11 Exercises
14.12 Notes
14.13 References
15 Adaptive Flight Control Systems
Appendices
Introduction
Model Reference Systems
The MIT Scheme
Example System
A Lyapunov Scheme
Parameter Adaptation Scheme
Conclusions
Notes
References
A Actuators and Sensors
A. 1 Introduction
A.2 Actuator Use in AFCSs
A.3 Actuators
A.4 Sensors
A.5 Accelerometers
A.6 Angle of Attack Sensor
A.7 References
B Stability Derivatives for Several Representative
Modern Aircraft
B. 1 Nomenclature
B.2 Aircraft Data
C Mathematical Models of Human Pilots
C. 1 Introduction
C.2 Classical Models
C.3 References
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