Aerospace actuators 2 : signal-by-wire and power-by-wire / Jean-Charles Mare.

Format:

Book

Author/Creator:

Maré, Jean-Charles, author.

Series:

Robotics series.

Robotics Series

Language:

English

Subjects (All):

Actuators.

Aerospace engineering.

Physical Description:

1 online resource (287 pages) : illustrations.

Edition:

1st ed.

Place of Publication:

London, [England] ; Hoboken, New Jersey : ISTE : Wiley, 2017.

Summary:

This book is the second in a series of volumes which cover the topic of aerospace actuators following a systems-based approach. This second volume brings an original, functional and architectural vision to more electric aerospace actuators. The aspects of signal (Signal-by-Wire) and power (Power-by-Wire) are treated from the point of view of needs, their evolution throughout history, and operational solutions that are in service or in development. This volume is based on an extensive bibliography, numerous supporting examples and orders of magnitude which refer to flight controls and landing gear for various aircraft (fixed or rotorwing, launchers) in commercial, private and military applications. The topics covered in this set 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.

Contents:

Cover

Title Page

Copyright

Contents

Introduction

I.1. Requirements in terms of the actuation for piloting an aircraft

I.2. Functions and architecting

1. Electrically Signaled Actuators (Signal-by-Wire)

1.1. Evolution towards SbW through the example of the flight controls

1.1.1. Military applications

1.1.2. Commercial aircraft

1.1.3. Helicopters and compound helicopters

1.2. Incremental evolution from all mechanical to all electrical

1.2.1. Exclusively mechanical signaling

1.2.2. Fly-by-Wire

1.3. Challenges associated with electrical signaling

1.3.1. Electrical interfaces

1.3.2. Evolution of the control and information transmission architectures

1.3.3. Reliability and backup channels

1.4. The example of landing gears

2. Signal-by-Wire Architectures and Communication

2.1. Architectures

2.1.1. Federated architectures

2.1.2. Integrated modular architectures

2.2. Data transmission

2.2.1. CAN

2.2.2. RS422 and RS485

2.2.3. ARINC 429 [AIM 10a]

2.2.4. MIL-STD-1553B [AIM 10b]

2.2.5. ARINC 629

2.2.6. AS-5643/IEEE-1394b

2.2.7. AFDX (ARINC 664 Part 7)

2.2.8. Triggered time protocol (TTP/C)

2.3. Evolutions in data transmission

2.3.1. Power over data and power line communication

2.3.2. Optical data transmission (Signal-by-Light or SbL)

2.3.3. Wireless data transmission (Signal-by-WireLess or SbWL5)

3. Power-by-Wire

3.1. Disadvantages of hydraulic power transmission

3.1.1. Power capacity of hydraulic pumps

3.1.2. Hydraulic pump efficiency

3.1.3. Centralized power generation

3.1.4. Power transmission by mass transfer

3.1.5. Control of power by energy dissipation

3.2. Electrical power versus hydraulic power

3.3. Improving hydraulically supplied solutions

3.3.1. Reduction of energy losses in actuators.

3.3.2. Increased network power density

3.3.3. Other concepts

3.4. Concepts combining hydraulics and electrics

3.4.1. Local electro-hydraulic generation

3.4.2. Electro-hydrostatic actuators

3.5. All electric actuation (hydraulic-less)

3.5.1. Principle of the electro-mechanical actuator

4. Electric Power Transmission and Control

4.1. Electric power transportation to PbW actuators

4.1.1. Form

4.1.2. Voltage and current levels

4.2. Electric motors

4.2.1. Elementary electric machines

4.2.2. Conversion of electrical power into mechanical power

4.3. Power conversion, control and management

4.3.1. Electric power system of a PbW actuator

4.3.2. Principle and interest of static switches

4.3.3. Groups of switches: commutation cell, chopper and inverter

4.3.4. Inverter command

4.3.5. The power architecture of a PbW actuator

4.4. Induced, undergone or exploited effects

4.4.1. Dynamics in presence

4.4.2. Torque ripple

4.4.3. Energy losses

4.4.4. Impact of concepts and architectures on performances

4.4.5. Reliability

4.5. Integration

4.5.1. Overall integration of the actuator

4.5.2. Cooling

4.5.3. Mechanical architecture of motor control/power electronic units

5. Electro-hydrostatic Actuators

5.1. Historical background and maturing of EHAs

5.1.1. PbW actuators with variable displacement pump (EHA-VD)

5.1.2. Fixed displacement and variable speed EHA actuators¹

5.2. EHA in service and feedback

5.3. EHA specificities

5.3.1. Pumps

5.3.2. Filling and charging

5.3.3. Dynamic increase of mean pressure (pump-up)

5.3.4. Energy losses and thermal equilibrium

5.3.5. Dissymmetry

5.3.6. Control

6. Electro-mechanical Actuators

6.1. Development and operation of electromechanical actuators

6.1.1. Space launchers

6.1.2. Flight controls.

6.1.3. Landing gears

6.1.4. Helicopters

6.1.5. Application to engines

6.2. Specificities of EMAs

6.2.1. Power architectures

6.2.2. Power management functions

6.2.3. Jamming

6.2.4. Breakage

6.2.5. Thermal equilibrium

6.2.6. Control

6.2.7. Further considerations

Bibliography

Notations and Acronyms

Index

Other titles from iSTE in Systems and Industrial Engineering - Robotics

EULA.

Notes:

Includes bibliographical references and index.

Description based on print version record.

ISBN:

1-119-40719-2

1-119-33244-3

1-119-40718-4

OCLC:

976166592