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Generalized nonlinear stiffness identification on controlled mechanical vibrating systems. (English) Zbl 1432.93065

Summary: A new algebraic parametric identification method in time domain for multiple degrees-of-freedom mechanical vibrating systems with high-order nonlinear stiffness is proposed. Parameters of mass, damping and linear and nonlinear stiffness are estimated on-line and, simultaneously, using transient real-time position measurements and active control force signals. Parametric identification can be applied for real-time estimation of both symmetrical and non-symmetrical stiffness. Parametric identification is combined with adaptive planned motion control on multiple-input-multiple-output nonlinear mechanical vibrating systems. Analytical and numerical results prove the effectiveness and efficiency of the proposed on-line algebraic parametric identification approach.

MSC:

93B30 System identification
93C35 Multivariable systems, multidimensional control systems
93B25 Algebraic methods
93C10 Nonlinear systems in control theory
70Q05 Control of mechanical systems
Full Text: DOI

References:

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