The Identification of Nonlinear Systems UsingCt-Kt | Zendy

Mingfei Chen | Zendy; DyiCheng Chen | Zendy; Chung-Heng Yang | Zendy; Shih-Feng Tseng | Zendy

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The Identification of Nonlinear Systems UsingCt-Kt

Author(s) -

Mingfei Chen,

DyiCheng Chen,

Chung-Heng Yang,

Shih-Feng Tseng

Publication year - 2014

Publication title -

mathematical problems in engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.262

H-Index - 62

eISSN - 1026-7077

pISSN - 1024-123X

DOI - 10.1155/2014/497872

Subject(s) - algorithm , computer science

In order to instantaneously distinguish the Ct (coefficient of viscous damping) and Kt (coefficient of stiffness), which are both functions of time in an M.C.K. nonlinear system, a new identification method is proposed in this paper. The graphs of the Ct-Kt are analyzed and the dynamic behavior of M.C.K. systems in a Ct-Kt coordinate plane is discussed. This method calculates two adjacent sampling data, the displacement, velocity, and acceleration (which are obtained from the responses of a pulse response experiment) and then distinguishes Ct and Kt of an instantaneous system. Finally, this method is used to identify the aerostatic bearing dynamic parameters, C and K

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