Aerospace Test Methodology for Electrohydrostatic Actuators

Aerospace Test Methodology for Electrohydrostatic Actuators PDF Author: A-6B2 Electrohydrostatic Actuation Committee
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

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Book Description
This document provides an overview of the tests and issues related to testing that are unique to Electrohydrostatic Actuators (EHAs). An EHA incorporates a linear or rotary hydraulic actuator and a variable speed, reversible electric servomotor driving a fixed displacement hydraulic pump for actuator control, and associated power drive electronics. The tests and issues documented are not necessarily all-inclusive. This document discusses both, the tests applicable to EHAs and the test methodologies to accomplish the test objectives.This document also lists tests that are not unique to EHAs, but are still applicable to EHAs. In these instances a discussion of such tests is not contained in this document, and as applicable, the reader may reference ARP1281 (Actuators: Aircraft Flight Controls, Power Operated, Hydraulic, General Specification For), which addresses test issues applicable to electrohydraulic flight control servoactuators.In the discussion of the tests and test methodologies contained in this document, numerical definition or specification of the test parameters to be imposed or measured is not included. These definitions or specifications should be developed to conform to the requirements of the applicable EHA technical specification document, considering the usual influencing factors such as instrumentation accuracy, test temperature, etc. The test methodologies applicable to Electrohydrostatic Actuators (EHAs) require considerations unique to EHAs for certain requirements and tests, as compared to electrohydraulic servoactuators. This ARP discusses such tests specific to EHAs, and recommends test methodologies unique to EHAs.

Aerospace Test Methodology for Electrohydrostatic Actuators

Aerospace Test Methodology for Electrohydrostatic Actuators PDF Author: A-6B2 Electrohydrostatic Actuation Committee
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

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Book Description
This document provides an overview of the tests and issues related to testing that are unique to Electrohydrostatic Actuators (EHAs). An EHA incorporates a linear or rotary hydraulic actuator and a variable speed, reversible electric servomotor driving a fixed displacement hydraulic pump for actuator control, and associated power drive electronics. The tests and issues documented are not necessarily all-inclusive. This document discusses both, the tests applicable to EHAs and the test methodologies to accomplish the test objectives.This document also lists tests that are not unique to EHAs, but are still applicable to EHAs. In these instances a discussion of such tests is not contained in this document, and as applicable, the reader may reference ARP1281 (Actuators: Aircraft Flight Controls, Power Operated, Hydraulic, General Specification For), which addresses test issues applicable to electrohydraulic flight control servoactuators.In the discussion of the tests and test methodologies contained in this document, numerical definition or specification of the test parameters to be imposed or measured is not included. These definitions or specifications should be developed to conform to the requirements of the applicable EHA technical specification document, considering the usual influencing factors such as instrumentation accuracy, test temperature, etc. The test methodologies applicable to Electrohydrostatic Actuators (EHAs) require considerations unique to EHAs for certain requirements and tests, as compared to electrohydraulic servoactuators. This ARP discusses such tests specific to EHAs, and recommends test methodologies unique to EHAs.

Aerospace - Testing of Electromechanical Actuators, General Guidelines For

Aerospace - Testing of Electromechanical Actuators, General Guidelines For PDF Author: A-6B3 Electro-Mechanical Actuation Committee
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

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Book Description
This document provides an overview of the tests, and issues related to testing, that are unique to Electromechanical Actuators (EMAs). The tests, and issues documented, are not necessarily all-inclusive. This document discusses both the tests applicable to EMAs and the test methodologies to accomplish the test objectives.EMAs may be used in a wide variety of applications such as utility, secondary flight controls and primary flight controls, in a wide variety of markets including manned and unmanned civil and military aircraft, small missile fin and thrust vector control applications up to high powered utility and flight controls. EMAs may also have either a rotary or a linear output, be servo controlled or use simple open loop point-to-point or other control topologies. As such this document covers a wide range of potential applications, the application of any given test requirement is determined by the application and the user. This document attempts to provide basic guidance on which tests should be considered for various applications. This document also lists tests that are not unique to EMAs, but are still applicable to EMAs. In these instances a discussion of such tests is not contained in this document, and as applicable, the reader may reference the appropriate documents as indicated in the text.While many EMA configurations include digital power drive electronics (PDE), the specific tests required for the electronic hardware, software, or firmware are outside the scope of this document. The test methodologies applicable to Electromechanical Actuators (EMAs) require considerations unique to EMAs for certain requirements and tests, as compared to conventional hydraulic servoactuators or electrohydrostatic actuators. This ARP satisfies the need for such a document which discusses such tests specific to EMAs, and recommends test methodologies unique to EMAs.

Aerospace Fluid Power Electrohydrostatic Module, Design, Performance and Test Recommendations

Aerospace Fluid Power Electrohydrostatic Module, Design, Performance and Test Recommendations PDF Author: A-6B2 Electrohydrostatic Actuation Committee
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

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Book Description
This Aerospace Recommended Practice provides general requirements for Electrohydrostatic Module (EHM) that is used in Electrohydrostatic Actuator (EHA) for aerospace applications.This document includes design, performance and test (production and qualification) requirements. There is a need for a document that provided design, performance and test requirements for an Electrostatic Module (EHM) that is comparable to existing documents for an Electrohydraulic Servo Valve (ARP490) or a Direct Drive Valve (ARP4493). This document meets this need.

Fundamentals of Electric Aircraft

Fundamentals of Electric Aircraft PDF Author: Pascal Thalin
Publisher: SAE International
ISBN: 0768093228
Category : Technology & Engineering
Languages : en
Pages : 260

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Book Description
Fundamentals of Electric Aircraft was developed to explain what the electric aircraft stands for by offering an objective view of what can be expected from the giant strides in innovative architectures and technologies enabling aircraft electrification. Through tangible case studies, a deep insight is provided into this paradigm shift cutting across various aircraft segments – from General Aviation to Large Aircraft. Addressing design constraints and timelines foreseen to reach acceptable performance and maturity levels, Fundamentals of Electric Aircraft puts forward a general view of the progress made to date and what to expect in the years to come. Drawing from the expertise of four industry veterans, Pascal Thalin (editor), Ravi Rajamani, Jean-Charles Mare and Sven Taubert (contributors), it addresses futuristic approaches but does not depart too far from the operational down-to-earth realities of everyday business. Fundamentals of Electric Aircraft also offers analyses on how performance enhancements and fuel burn savings may bring more value for money as long as new electric technologies deliver on their promises.

Aerospace Actuators 2

Aerospace Actuators 2 PDF Author: Jean-Charles Maré
Publisher: John Wiley & Sons
ISBN: 1119407184
Category : Mathematics
Languages : en
Pages : 205

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Book Description
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.

Aerospace Actuators 2

Aerospace Actuators 2 PDF Author: Jean-Charles Maré
Publisher: John Wiley & Sons
ISBN: 1848219423
Category : Mathematics
Languages : en
Pages : 292

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Book Description
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.

Commercial Aircraft Hydraulic Systems

Commercial Aircraft Hydraulic Systems PDF Author: Shaoping Wang
Publisher: Academic Press
ISBN: 0124199925
Category : Technology & Engineering
Languages : en
Pages : 278

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Book Description
Commercial Aircraft Hydraulic Systems: Shanghai Jiao Tong University Press Aerospace Series focuses on the operational principles and design technology of aircraft hydraulic systems, including the hydraulic power supply and actuation system and describing new types of structures and components such as the 2H/2E structure design method and the use of electro hydrostatic actuators (EHAs). Based on the commercial aircraft hydraulic system, this is the first textbook that describes the whole lifecycle of integrated design, analysis, and assessment methods and technologies, enabling readers to tackle challenging high-pressure and high-power hydraulic system problems in university research and industrial contexts. Commercial Aircraft Hydraulic Systems is the latest in a series published by the Shanghai Jiao Tong University Press Aerospace Series that covers the latest advances in research and development in aerospace. Its scope includes theoretical studies, design methods, and real-world implementations and applications. The readership for the series is broad, reflecting the wide range of aerospace interest and application. Titles within the series include Reliability Analysis of Dynamic Systems, Wake Vortex Control, Aeroacoustics: Fundamentals and Applications in Aeropropulsion Systems, Computational Intelligence in Aerospace Engineering, and Unsteady Flow and Aeroelasticity in Turbomachinery. Presents the first book to describe the interface between the hydraulic system and the flight control system in commercial aircraft Focuses on the operational principles and design technology of aircraft hydraulic systems, including the hydraulic power supply and actuation system Includes the most advanced methods and technologies of hydraulic systems Describes the interaction between hydraulic systems and other disciplines

IMPULSE TESTING OF AEROSPACE HYDRAULIC ACTUATORS, VALVES, PRESSURE CONTAINERS, AND SIMILAR FLUID SYSTEM COMPONENTS

IMPULSE TESTING OF AEROSPACE HYDRAULIC ACTUATORS, VALVES, PRESSURE CONTAINERS, AND SIMILAR FLUID SYSTEM COMPONENTS PDF Author: A-6 Aerospace Actuation, Control and Fluid Power Systems
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

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Book Description
This SAE Aerospace Recommended Practice (ARP) establishes the minimum requirements and procedures for impulse testing of aerospace hydraulic actuators, valves, pressure containers, and similar fluid system components, except accumulators, for use in aerospace hydraulic systems. It also refers to standard impulse test equipment, which may be used in conducting these impulse tests.

IMPULSE TESTING OF HYDRAULIC ACTUATORS, VALVES, PRESSURE CONTAINERS AND SIMILAR FLUID SYSTEM COMPONENTS

IMPULSE TESTING OF HYDRAULIC ACTUATORS, VALVES, PRESSURE CONTAINERS AND SIMILAR FLUID SYSTEM COMPONENTS PDF Author: A-6 Aerospace Actuation, Control and Fluid Power Systems
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

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Book Description
This Aerospace Recommended Practice (ARP) establishes the requirements and the procedures for impulse testing of actuators, valves and pressure containers for use in aerospace hydraulic systems. It also refers to standard impulse test equipment which may be used in conducting these impulse tests.

Scientific and Technical Aerospace Reports

Scientific and Technical Aerospace Reports PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 702

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Book Description