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https://hdl.handle.net/2440/43648
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Type: | Conference paper |
Title: | Variable structure observer design in matrix second-order formulation for linear & nonlinear vibrating systems using velocity measurements |
Author: | Cao, T. He, F. Sammut, K. Chen, L. |
Citation: | Proceedings of the 2002 IEEE International Conference on Control Applications : September 18-20, 2002, Glasgow, Scotland, U.K. / sponsored by the IEEE Control Systems Society (CSS):pp.82-87 |
Publisher: | IEEE |
Issue Date: | 2002 |
ISBN: | 0780373863 |
Conference Name: | IEEE International Conference on Control Applications (2002 : Glasgow, Scotland) |
Statement of Responsibility: | Tri-Tan Van Cao; Fangpo He; Sammut, K.; Lei Chen |
Abstract: | This paper addresses the problem of Variable Structure Systems (VSS) observer design based on the natural Matrix Second Order (MSO) model that represents a large class of linear and nonlinear mechanical vibrating structures. In this natural MSO form, the symmetric and definiteness properties of the system matrices are exploited to search for a suitable Lyapunov function and an effective VSS estimation law. The proposed observers can be used to robustly estimate oscillations in other degrees-of-freedom (dof) of a multiple-degrees-of-freedom (mdof) linear vibrating system by processing measured velocity signals and Control inputs from one or more dof in the presence of matched uncertainties. The method is then extended to cover a class of mdof nonlinear vibrating structures with Lipschitz non-linearities. The benefits of this approach are that it does not require an initial modal transformation, and the observer design problem is solved without resorting to the solution of a nonlinear matrix Riccati equation. |
DOI: | 10.1109/CCA.2002.1040165 |
Published version: | http://dx.doi.org/10.1109/cca.2002.1040165 |
Appears in Collections: | Aurora harvest Mechanical Engineering conference papers |
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