LPV robust servo control of aircraft active side-sticks

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dc.contributor.authorZhou, Guang Rui
dc.contributor.authorLiu, Shi Qian
dc.contributor.authorSang, Yuan Jun
dc.contributor.authorWang, Xu Dong
dc.contributor.authorJia, Xiao Peng
dc.contributor.authorNiu, Er Zhuo
dc.date.accessioned2020-09-01T14:04:11Z
dc.date.available2020-09-01T14:04:11Z
dc.date.issued2020-03-31
dc.description.abstractPurpose This paper aims to focus on the variable stick force-displacement (SFD) gradience in the active side stick (ASS) servo system for the civil aircraft. Design/methodology/approach The problem of variable SFD gradience was introduced first, followed by the analysis of its impact on the ASS servo system. To solve this problem, a linear-parameter-varying (LPV) control approach was suggested to process the variable gradience of the SFD. A H∞ robust control method was proposed to deal with the external disturbance. Findings To validate the algorithm performance, a linear time-variant system was calculated to be used to worst cases and the SFD gradience was set to linear and non-linear variation to test the algorithm, and some typical examples of pitch angle and side-slip angle tracking control for a large civil aircraft were also used to verify the algorithm. The results showed that the LPV control method had less settling time and less steady tracking errors than H∞ control, even in the variable SFD case. Practical implications This paper presented an ASS servo system using the LPV control method to solve the problem caused by the variable SFD gradience. The motor torque command was calculated by pressure and position feedback without additional hardware support. It was more useful for the electronic hydraulic servo actuator. Originality/value This was the research paper that analyzed the impact of the variable SFD gradience in the ASS servo system and presented an LPV control method to solve it. It was applicable for the SFD gradience changing in the linear and non-linear cases.en_UK
dc.identifier.citationZhou GR, Liu SQ, Sang YJ, et al., (2020) LPV robust servo control of aircraft active side-sticks. Aircraft Engineering and Aerospace Technology, Volume 92, Issue 4, April 2020, pp.599-609en_UK
dc.identifier.issn0002-2667
dc.identifier.urihttps://doi.org/10.1108/AEAT-08-2019-0155
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/15736
dc.language.isoenen_UK
dc.publisherEmeralden_UK
dc.rightsAttribution-NonCommercial 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/*
dc.subjectActive side sticken_UK
dc.subjectDisturbance rejectionen_UK
dc.subjectLinear parameter varying systemen_UK
dc.subjectFlight controlen_UK
dc.subjectVariable force-displacement gradienceen_UK
dc.subjectRobust controlen_UK
dc.titleLPV robust servo control of aircraft active side-sticksen_UK
dc.typeArticleen_UK

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