European industry abounds in examples that highlight the 4 major stages of the evolution of commercial aircraft actuation: Caravelle; Concorde; Airbus A320; and Airbus A380. On the Caravelle, information was transmitted from the flight deck to servocontrols by cables and connecting rods, a common mechanical solution for that time period. Consequently, designers had to resort to electrical technology to transmit the control commands and to elaborate the closed‐loop position control of servocontrols. The Concorde thus became the first commercial aircraft with analog “electrical flight controls”. The transmission of position setpoints in a mechanical form has, however, been preserved as an ultimate backup channel, particularly because of the lack of experience in regard to the lightning resistance of critical electrical systems. Operation in electrohydraulic mode is activated by an electrical valve that enables the pilot stage of the servovalve to be supplied.
European Commercial Aircraft before the Airbus A320
Aerospace Actuators 3 ; 1-30
13.01.2018
30 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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