My weblog
XML Feeds| Drag reduction using plasma » |
Reconfigurable Flight Control System for CleanEra Aircraft
2008-02-01
Reconfigurable Flight Control System for CleanEra Aircraft
2008-02-01 02:27:33 , by Hui Yu 
, 13450 views, Update,
, 13450 views, Update,
Flight conditions of a civil transport aircraft could generally be divided into several categories. The one which composes the majority of the entire flight envelop is normal flight region. Compared with so-called normal flight region, aircraft with unexpected damages performs within an abnormal one. Conventional flight control system can easily provide satisfactory performance when the aircraft is within the normal region, but they usually are unable to control the aircraft in the case of abnormal region caused by damages.
Actuators/sensor failures and structural/airframe failures are two main sources for aircraft damages. A high degree of redundancy is able to solve actuator/sensor failures easily without any technique challenge to flight control system design, so this kind of failures are not the objective the reconfigurable flight control systems are going to deal with. Obviously, most of civil aviation disasters are resulted from structural/airframe failures, such as United Airlines Flight UA232, EI AI Flight 1862 of the Israeli Airline, American Airlines Flight 587 and so on. Therefore, structural/airframe failures are the author’s objective.
In sum, the aim of the reconfigurable flight control system being designed is to propose a controller for CleanEra aircraft which is able to ensure stability and performance during normal flight and to reconfigure itself according to the measurements of the aircraft’s behavior in expectation of acceptable performance when unexpected structural/airframe failures happen.
Permalink