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HORIZONTAL STABILIZER TRIM ACTUATOR FAILURE DETECTION SYSTEM AND METHOD USING POSITION SENSORS

  • US 20130001357A1
  • Filed: 07/02/2012
  • Published: 01/03/2013
  • Est. Priority Date: 06/30/2011
  • Status: Active Grant
First Claim
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1. An actuator assembly comprising:

  • a primary load path for tightly coupling an actuated surface to a reference structure;

    a secondary load path having a backlash portion for coupling the actuated surface to the reference structure with backlash, wherein the secondary load path is unloaded during an operative state of the primary load path and loaded during a failure state of the primary load path; and

    a first sensor configured to sense the failure state of the primary load path when a relative displacement between a portion of the primary load path and a portion of the secondary load path exceeds a predetermined value.

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