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A passive vibration absorber for reducing the motion of a planar pendulum is developed. The system is excited by the horizontal motion of the support. The design transforms the original one-degree-of- freedom pendulum into a double pendulum by adding a small secondary pendulating sacrificial mass...
In this paper, a two-degree-of-freedom model has been constructed for a structural dynamic system consisting of a linear elastic plate bonded with piezoelectric sensors and actuators. A multivariable feedback controller is designed. Four control procedures based on the minimization of performance...
A method for modal parameter identification of a random vibrating system from multi-output data only is presented. The method uses a multivariate state-space model and exploits shift properties of a block- Hankel matrix formed from the covariance matrices of output data. Since the number of modes...
This paper presents a robust design method of active controller for parameter uncertain vibration systems subjected to external unmeasurable disturbances. Based on the combination of complex modal theory, parameter optimization, linear matrix inequality approach, and robust eigenvalue assignment,...