The Identification of Nonlinear Systems Using - Plane Coordinates

Ming-Fei Chen, Dyi-Cheng Chen, Chung-Heng Yang and Shih-Feng Tseng

Mathematical Problems in Engineering, 2014, vol. 2014, 1-13

Abstract:

In order to instantaneously distinguish the (coefficient of viscous damping) and (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 - are analyzed and the dynamic behavior of M.C.K. systems in a - 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 and of an instantaneous system. Finally, this method is used to identify the aerostatic bearing dynamic parameters, C and K .

Date: 2014
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnlmpe:497872

DOI: 10.1155/2014/497872

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