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dc.contributor.authorWichaphon Fakkaewen_US
dc.contributor.authorTheeraphong Wongratanaphisanen_US
dc.contributor.authorMatthew O T Coleen_US
dc.date.accessioned2018-09-04T10:15:21Z-
dc.date.available2018-09-04T10:15:21Z-
dc.date.issued2015-01-01en_US
dc.identifier.issn17412986en_US
dc.identifier.issn10775463en_US
dc.identifier.other2-s2.0-84924956010en_US
dc.identifier.other10.1177/1077546313494099en_US
dc.identifier.urihttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84924956010&origin=inwarden_US
dc.identifier.urihttp://cmuir.cmu.ac.th/jspui/handle/6653943832/54521-
dc.description.abstract© The Author(s) 2013. This paper presents a framework for model-based analysis of robust stability and performance for a multi-axis active vibration isolation system with constant but unknown payload and subject to modelling errors associated with structural flexibility. The theoretical treatment involves a linear time-invariant system subject to real parameter uncertainty associated with the unknown payload. A set of performance indices are formulated based on generalized H2 (Hg) and H∞ measures. A method for stability/performance verification is then developed using a parameter-dependent Lyapunov function that incorporates the kinetic energy of the uncertain payload mass. This allows nonconservative bounds on the performance indices to be established via numerical solution of a corresponding set of matrix inequalities. The approach is especially suitable, and computationally efficient, for multi-degree-of-freedom systems as the overall (symmetric positive-definite) properties of the system mass matrix are accounted for without involving information for each scalar parameter. The associated LMIs can therefore be solved in polynomial time with respect to the number of unknown parameters. Numerical examples for the case of sky-hook damping control and multi-objective Hg/H∞ control are provided that demonstrate the effectiveness of the method as a tool for model-based controller evaluation and multi-objective optimization.en_US
dc.subjectEngineeringen_US
dc.subjectMaterials Scienceen_US
dc.titleAn analysis and design framework for robust control of a multi-axis active vibration isolation system with unknown payloaden_US
dc.typeJournalen_US
article.title.sourcetitleJVC/Journal of Vibration and Controlen_US
article.volume21en_US
article.stream.affiliationsChiang Mai Universityen_US
Appears in Collections:CMUL: Journal Articles

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