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dc.contributor.authorMaciejowski, Janen
dc.contributor.authorHartley, Edwarden
dc.contributor.authorSiaulys, Kestutisen
dc.date.accessioned2016-10-14T09:15:59Z
dc.date.available2016-10-14T09:15:59Z
dc.date.issued2016-01-01en
dc.identifier.issn1367-5788
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/260763
dc.description.abstractThe feedback gains in state-of-the-art flight control laws for commercial aircraft are scheduled as a function of values such as airspeed, mass, and centre of gravity (CoG). If measurements or estimates of these are lost due to multiple simultaneous sensor failures, the pilot must revert to an alternative control law, or, in the ultimate case, directly command control surface positions. This work develops a robust backup load-factor tracking control law, that does not depend on these parameters, based on application of theory from robust MPC and $H_2$ optimal control. Firstly, the methods are applied with loss only of airdata, and subsequently also with loss of mass and CoG estimates. Local linear analysis indicates satisfactory performance over a wide range of operating points. To keep the aircraft within an acceptable operating region, an outer protection loop is implemented using an override approach, based on ground speed, a model of the trim angle of attack and variation of load factor with respect to angle of attack, and $\textit{a priori}$ bounds on the wind speed. Finally, the resulting control laws are demonstrated on the nonlinear RECONFIGURE benchmark, which is derived from an Airbus high fidelity, industrially-validated simulator.
dc.description.sponsorshipEuropean Union Seventh Framework Programme FP7/2007- 2013 (Grant ID: 314 544, project “RECONFIGURE”)
dc.languageEnglishen
dc.language.isoenen
dc.publisherElsevier
dc.titleA longitudinal flight control law to accommodate sensor loss in the RECONFIGURE benchmarken
dc.typeArticle
prism.endingPage223
prism.publicationDate2016en
prism.publicationNameAnnual Reviews in Controlen
prism.startingPage212
prism.volume42en
dc.identifier.doi10.17863/CAM.5917
dc.identifier.doi10.17863/CAM.5917
dc.identifier.doi10.17863/CAM.5917
dc.identifier.doi10.17863/CAM.5917
dc.identifier.doi10.17863/CAM.5917
dcterms.dateAccepted2016-06-01en
rioxxterms.versionofrecord10.1016/j.arcontrol.2016.07.001en
rioxxterms.versionAMen
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2016-01-01en
dc.contributor.orcidMaciejowski, Jan [0000-0001-8281-8364]
dc.contributor.orcidHartley, Edward [0000-0001-5491-229X]
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idEC FP7 CP (314544)
rioxxterms.freetoread.startdate2017-08-13


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