Regressor time-shifting to identify longitudinal stability and control derivatives of the Jetstream 3102

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dc.contributor.authorYusuf, Sezsy
dc.contributor.authorLone, Mudassir
dc.contributor.authorCooke, Alastair
dc.contributor.authorLawson, Nicholas J.
dc.date.accessioned2017-07-04T15:23:42Z
dc.date.available2017-07-04T15:23:42Z
dc.date.issued2017-06-20
dc.description.abstractThe Jetstream 31 G-NFLA aircraft is used as a national flying laboratory test vehicle for flight dynamics research and teaching purposes. It has been the subject of much theoretical and experimental modelling and therefore, the need for generating validation data through flight testing is critical. In this paper, the aircraft's short period pitch oscillation mode characteristics are identified using data from sixteen flight tests. An identification procedure based on the least squares method and reduced order state-space model is used and the need for pre-processing regressors due to the effects of sensor location and instrumentation delays is highlighted. It has been shown that time-shifting the regressors based on relative locations of the angle of attack vanes and the inertial measurement unit results in significant reductions in uncertainty bounds of the estimated aeroderivatives and also a model that provides a closer match to flight test data. The estimated models are validated using separate flight test data and the variations in aeroderivatives over a range of airspeeds and centre of gravity positions are also presented.en_UK
dc.identifier.citationYusuf S, Lone M, Cooke A, Lawson N. (2017) Regressor time-shifting to identify longitudinal stability and control derivatives of the Jetstream 3102. Aerospace Science and Technology, Volume 69, October 2017, pp. 218-225en_UK
dc.identifier.cris17936015
dc.identifier.issn1270-9638
dc.identifier.urihttp://dx.doi.org/10.1016/j.ast.2017.06.003
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/12159
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectParameter estimationen_UK
dc.subjectShort period pitch oscillationen_UK
dc.subjectRegressor correctionsen_UK
dc.titleRegressor time-shifting to identify longitudinal stability and control derivatives of the Jetstream 3102en_UK
dc.typeArticleen_UK

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