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VGU RESEARCH REPOSITORY


Please use this identifier to cite or link to this item: https://epub.vgu.edu.vn/handle/dlibvgu/151
Title: A new fuzzy-disturbance observer-enhanced sliding controller for vibration control of a train-car suspension with magneto-rheological dampers
Authors: Sy Dzung Nguyen
Seung-Bok Choi
Nguyen Quoc Hung 
Keywords: Adaptive sliding mode control;Fuzzy sliding mode control;Magneto-rheological damper (MRD);MRD train-car suspension;Optimal fuzzy disturbance observer
Issue Date: 2018
Publisher: Elsevier, Science Direct
Series/Report no.: Mechanical Systems and Signal Processing;Vol.105
Abstract: 
Semi-active train-car suspensions are always impacted negatively by uncertainty and disturbance (UAD). In order to deal with this, we propose a novel optimal fuzzy disturbance observer-enhanced sliding mode controller (FDO-SMC) for magneto-rheological damper (MRD)-based semi-active train-car suspensions subjected to UAD whose variability rate may be high but bounded. The two main parts of the FDO-SMC are an adaptive sliding mode controller (ad-SMC) and an optimal fuzzy disturbance observer (op-FDO). As the first step, the initial structures of the sliding mode controller (SMC) and disturbance observer (DO) are built. Adaptive update laws for the SMC and DO are then set up synchronously via Lyapunov stability analysis. Subsequently, an optimal fuzzy system (op-FS) is designed to fully implement a parameter constraint mechanism so as to guarantee the system stability converging to the desired state even if the UAD variability rate increases in a given range. As a result, both the ad-SMC and op-FDO are formulated. It is shown from the comparative work with existing controllers that the proposed method provides the best vibration control capability with relatively low consumed power.
Index & Ranking: ISI (SCIE) Q1
URI(1): http://epub.vgu.edu.vn/handle/dlibvgu/151
DOI: 10.1016/j.ymssp.2017.12.019
Appears in Collections:ARTICLE/BOOK PUBLICATION

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