Electro-hydraulic actuator tester for fly-by-wire aircrafts

Trabalho apresentado em evento

Fecha

2007-09-28

Registro en:

Conference Record - IEEE Instrumentation and Measurement Technology Conference.

1091-5281

http://hdl.handle.net/11449/69895

10.1109/IMTC.2007.379213

WOS:000251296802014

2-s2.0-34648822325

http://repositorioslatinoamericanos.uchile.cl/handle/2250/3919268

Autor

Universidade Estadual Paulista (Unesp)

EMBRAER - Empresa Brasileira de Aeronáutica

Institución

Universidade Paulista Júlio de Mesquita Filho (Brasil)

Resumen

An 8051-based microcontroller tester has been designed to reduce troubleshooting time of the Electro-Hydraulic Actuators (EHA) installed in fly-by-wire aircrafts. The tester algorithm first evaluates EHA pressure and position sensor signals to emit either a pass or fail message. The evaluation is based on predefined ranges of EHA pressure and position signals. Next, the instrument tests the EHA response capability - a way of dynamic response evaluation, again issuing a suitable response. The instrument proved to be reliable after being successfully evaluated in laboratory and in a real model test airplane. © 2007 IEEE.

Materias

Aircraft maintenance

Electro-hydraulic actuator

LVDT

Electro-Hydraulic Actuators (EHA)

Fail message

Sensor signals

Electrohydrodynamics

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