Overview

This book is the third in a series dedicated to aerospace actuators. It uses the contributions of the first two volumes to conduct case studies on actuation for flight controls, landing gear and engines. The actuation systems are seen in several aspects: signal and power architectures, generation and distribution of hydraulic or mechanical power, control and reliability, and evolution towards more electrical systems. The first three chapters are dedicated to the European commercial airplanes that marked their era: Caravelle, Concorde, Airbus A320 and Airbus A380. The final chapter deals with the flight controls of the Boeing V-22 and AgustaWestland AW609 tiltrotor aircraft. These address concerns that also apply to electromechanical actuators, which should be fitted on more electrical aircraft in the future. The topics covered in this series of books constitute a significant source of information for individuals and engineers from a variety of disciplines, seeking to learn more about aerospace actuation systems and components.

Full Product Details

Author:   Jean-Charles Maré (National Institute of Applied Sciences (INSA); Clément Ader Institute in Toulouse, France)
Publisher:   ISTE Ltd and John Wiley & Sons Inc
Imprint:   ISTE Ltd and John Wiley & Sons Inc
Edition:   Volume 3
Dimensions:   Width: 16.50cm , Height: 1.80cm , Length: 23.90cm
Weight:   0.454kg
ISBN:  

9781848219434

ISBN 10:   1848219431
Pages:   224
Publication Date:   09 January 2018
Audience:   Professional and scholarly ,  Professional & Vocational
Format:   Hardback
Publisher's Status:   Active
Availability:   Out of stock  
The supplier is temporarily out of stock of this item. It will be ordered for you on backorder and shipped when it becomes available.

Table of Contents

Introduction ix List of Acronyms xiii Chapter 1 European Commercial Aircraft before the Airbus A320 1 1.1 Introduction 1 1.2 The Caravelle and irreversible primary flight servocontrols 2 1.2.1 Servodyne servocontrol 4 1.2.2 Artificial feel of load 9 1.2.3 Hydraulic power generation 11 1.3 The Concorde and flight controls with analog electrical signals and controllers 14 1.3.1 General architecture of flight controls 16 1.3.2 Operation modes 19 1.3.3 Closed-loop analog electrical control 20 1.3.4 Relay jack and PFCU 22 1.3.5 Artificial feel 25 1.3.6 Hydraulic power generation 28 Chapter 2 Airbus A320 and Electrically Signaled Actuators 31 2.1 Airbus A320 or Signal-by-Wire with digital computers 31 2.2 Flight controls 32 2.2.1 General concepts 33 2.2.2 Architectures and redundancies 34 2.2.3 Actuators 38 2.3 Landing gears 59 2.3.1 Braking 59 2.3.2 Auxiliary landing gear steering 63 2.4 Hydraulic system architecture 66 2.5 Hydraulic pumps 69 2.5.1 Engine-driven pump (EDP) 73 2.5.2 Electric motor pump (EMP) 76 2.5.3 Reversible power transfer unit (PTU) 77 2.5.4 Ram air turbine (RAT) 78 Chapter 3 Airbus A380 79 3.1 Introduction 79 3.1.1 A need for high-capacity long-range aircraft 80 3.1.2 Actuation need 81 3.1.3 Innovative architectures and technologies 83 3.2 Data transmission and processing 85 3.3 Power generation and distribution 89 3.3.1 2H-2E architecture 89 3.3.2 Hydraulic power generation 91 3.4 Flight controls 96 3.4.1 Topology 96 3.4.2 Displacement control for the actuators of slats and flaps 102 3.4.3 Electrohydrostatic actuators 107 3.4.4 Trimmable horizontal stabilizer actuator 111 3.5 Landing gears 116 3.5.1 Topology 116 3.5.2 Signal considerations 117 3.5.3 Power considerations 117 3.5.4 Extension/retraction 119 3.5.5 Steering 119 3.5.6 Braking 123 3.6 Thrust reversers 126 3.6.1 Locking in stowed configuration 129 3.7 Subsequent programs 130 Chapter 4 V-22 and AW609 Tiltrotors 133 4.1 V-22 Osprey military tiltrotor 134 4.1.1 Overall architecture of flight controls 135 4.1.2 Hydraulic power generation architecture 139 4.1.3 Control architecture of flight control actuators 140 4.1.4 Control surface actuators 141 4.1.5 Swashplate actuators 143 4.1.6 Pylon conversion actuators 146 4.2 AW609 civil tiltrotor 161 4.2.1 Overall architecture of flight controls 162 4.2.2 Hydraulic power architecture 164 4.2.3 Power architecture of electrohydraulic actuators 165 4.2.4 Pylon conversion actuators 171 4.3 Comparison of the pylon conversion actuator approaches for the V-22 and AW609 182 Bibliography 185 Index 193

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Author Information

Jean-Charles Maré is Professor at the National Institute of Applied Sciences (INSA), and researcher at the Clément Ader Institute in Toulouse, France.

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