ISSN:
1662-9779
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Physics
Notes:
Highly maneuverable aircraft has redundant electrohydraulic actuators that generate theforces to drive the aircraft control surfaces. Two problems are important in these actuators. First,during reconfiguration of the actuator channels the hydraulic system works in the full range of itsparameters. It leads to strongly nonlinear models of the redundant servo. Second, the frequencybandwidth of elements, which are located in the feedback loop of the servo, should be as wide aspossible. Therefore, it is necessary to choose proper control method for actuator, where thecontroller of control system adjusts the set point signal. The advanced control methods can ensurethe new quality of the systems.The new, advanced methods can cope with such problem in practical applications. There areavailable: adaptive methods, predictive methods, etc. and first of all, the robust control methods.These methods are robust on external disturbance. The causes of disturbances are very different: theinaccuracy in the mathematical and simulation model, the change of the operation point, theweather and temperature conditions, etc. We have designed such models in the Matlab/Simulinkenvironment and we divided the full actuator into small subsystems
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/22/transtech_doi~10.4028%252Fwww.scientific.net%252FSSP.113.61.pdf
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