Adaptive observer-based integral event-triggered antivibration control of a full aircraft active landing gear system with irregular runway excitations

Wenxiao HU ¹Chenglong DU ²Fanbiao LI ²Xinmin CHEN ³Chunhua YANG ²Weihua GUI²

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作者信息

1. School of Automation,Central South University,Changsha 410083,China;Research Center in System Engineering for Special Aircrafts,Ningbo Institute of Materials Technology and Engineering,Chinese Academy of Sciences,Ningbo 315201,China
2. School of Automation,Central South University,Changsha 410083,China
3. Research Center in System Engineering for Special Aircrafts,Ningbo Institute of Materials Technology and Engineering,Chinese Academy of Sciences,Ningbo 315201,China
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Abstract

This study addresses the antivibration issue of a full aircraft active landing gear system(LGS)under landing impact and runway excitations via a novel adaptive observer-based integral event-triggered control method.First,a full aircraft active LGS comprising a front gear and two synchronized main left and right gears with active suspensions is established,where the information exchange among them is not implemented directly.Second,two adaptive observers are designed separately for the front and main LGSs to identify the varying damping parameters and estimate the system states simultaneously.Third,estimated states are transmitted to a shared network through a novel integral event-triggered mechanism(I-ETM);thus,the front and main LGSs are interconnected,and a networked control scheme for the aircraft LGS is constructed.Additionally,the integrated active control law is designed with the aid of the transmitted states of the front and main LGSs,enhancing the robustness against the pitch vibration of the aircraft.Furthermore,the L2-stability of the hybrid system is guaranteed to depress the vertical vibration effect of the landing impact and irregular runway excitations,thus improving passenger safety and comfort.Moreover,a codesign method is provided to obtain feasible solutions to the gain matrices of the observers and controllers simultaneously.Simulation and comparison results are presented to illustrate the effectiveness and superiority of the proposed control scheme in antivibration and saving communication resources.

Key words

aircraft active landing gear/antivibration control/integral event-triggered mechanism/adaptive observer/L2-stability

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基金项目

National Natural Science Foundation of China(62303492)

National Natural Science Foundation of China(61973319)

National Science Fund for Excellent Young Scholars of China(62222317)

Postdoctoral Fellowship Program of CPSF(BX20230430)

Postdoctoral Fellowship Program of CPSF(2023M733940)

Science and Technology Major Project of Hunan Province(2021GK1030)

Key R&D Plan of Hunan Province(2023GK2023)

Science and Technology Innovation Program of Hunan Province(2022WZ1001)

Natural Science Foundation of Hunan Province(2023JJ40765)

Natural Science Foundation of Changsha(kq2208287)

出版年

2024

中国科学:信息科学(英文版)

中国科学院

中国科学:信息科学(英文版)

CSTPCDEI

影响因子：0.715

ISSN：1674-733X

参考文献量1

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