Accession Number:

ADA624195

Title:

Scientific Research Program for Power, Energy, and Thermal Technologies. Task Order 0002: Power, Thermal and Control Technologies and Processes Experimental Research. Subtask: Laboratory Test Set-up to Evaluate Electromechanical Actuation Systems for Aircraft Flight Control

Descriptive Note:

Interim rept. 1 Jan 2015-15 May 2015

Corporate Author:

DAYTON UNIV OH RESEARCH INST

Personal Author(s):

Report Date:

2015-08-01

Pagination or Media Count:

118.0

Abstract:

A laboratory apparatus and data acquisition DAQ system were constructed for evaluating aircraft flight control actuators under simulated mission profiles. An MTS Systems Corporation hydraulic load frame was used to simulate a control surfaces aero load. A National Instruments Corporation NI-based DAQ system was used to record the motor controllers DC bus voltage at a high rate, actuators position, load, and temperatures. The DC bus root mean square RMS voltage, current, and power, and regenerative power were recorded by a Newtons 4th power analyzer. Key performance characteristics tests such as frequency response, step response, reversal, backlash, and holding with a Danahar EC5 actuator were carried out to verify this laboratory setup. The continuous frequency sweeping test revealed that the electromechanical actuator EMA reached the speed limit first, then the current limit, and finally the temperature limit. When the actuators electronics reached the thermal limit, the actuator controller drastically reduced its power. This caused drastic magnitude attenuation and phase lagging. Continuous frequency sweeping proved to be a useful test to evaluate the EMAs characteristics.

Subject Categories:

  • Flight Control and Instrumentation
  • Non-electrical Energy Conversion
  • Machinery and Tools

Distribution Statement:

APPROVED FOR PUBLIC RELEASE