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2010 Edition, April 1, 2010

Complete Document

Aerospace – Test Methodology for Electrohydrostatic Actuators

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Product Details:

  • Revision: 2010 Edition, April 1, 2010
  • Published Date: April 2010
  • Status: Active, Most Current
  • Document Language: English
  • Published By: SAE International (SAE)
  • Page Count: 20
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

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 purpose of this document is to facilitate the generation of test specifications, plans and procedures for EHAs (and EHA mode operation of Electric Backup Hydraulic Actuators (EBHAs), covering Integration, Acceptance and Qualification testing.

Field of Application

This document focuses on EHA issues irrespective of the application of the EHA – whether military or commercial. It shall be the user's responsibility to ensure that particular qualification or certification requirements, or applicable specifications, standards or regulations for the intended application are satisfied by the EHA design, and the tests and test methods that are developed.
AIA/NAS Aerospace Standards