Generalized dynamic model of hydrodynamic vibration dampener subject to viscous damping

Viscous damping identification in linear vibration

Parametric identification of viscous damping models in the context of linear vibration theory is studied. Frequency domain identification methods based on measured frequency response functions (FRFs) are considered. Existing methods are classified into two main groups: matrix methods which use directly the measured FRF matrix, and modal methods which use modal parameters deduced from the FRFs. ...

An Adaptive Model of Rotating Machinery Subject to Vibration Monitoring

This paper proposes a state-space model of nonstationary multivariate vibration signals for the on-line estimation of the state of rotating machinery by means of noise-adaptive Kalman filtering algorithm and spectral analysis in the time-frequency domain. Experimental results demonstrate that the proposed model is able to quickly detect the actual state of rotating machinery even under highly n...

Hydrodynamic loading and viscous damping of patterned perforations on microfabricated resonant structures

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Large-Amplitude Vibration of Imperfect Rectangular, Circular and Laminated Plate with Viscous Damping

Forced harmonic vibration of a Duffing oscillator with linear viscous damping

TheDuffing oscillator has become a classical paradigm for illustrating the remarkable jump phenomenon and other nonlinear behaviour [1,2]. The understanding gained on the basis of this low-order nonlinear systemhas helped in the development of reducedorder models of complex mechanical systems ranging from microscales to macroscales [3,4]. The nondimensional Duffing equation with damping and ext...