Time delay output feedback control of rail-bogie dynamic systems with MR dampers

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Journal of Vibration and Shock ›› 2009, Vol. 28 ›› Issue (6) : 135-138.

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CAO Deng-qing1 , ZENG Jing2, CHENG Wei-wei1 , CHEN Min1

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Abstract

A 6 DOF railbogie model established here was used to investigate the time delay output feedback contro of rail-bogie dynamic system.A vibration control rule for the entire system was designed in terms of the measurable output of the system.The differential equation of motion of the system was transformed to a state-space model with time delay in the control input.Then, a transformation with a linear term and an integral term was employed to transfer the original time delay system into a form without time delays.Accordingly, a time delay semi-active control rule for the system was designed based on the principle of output feedback,a reasonable performance index, and the“on-off” control strategy.Finally,a rail-bogie model with a set of typical parameters was taken as an example to illustrate the application procedure of the control strategy proposed.The numerical results show that the time delay semi-active control strategy designed here is effective.

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6-DOF rail-bogie model / time delays / output feedback / sub-optimal control / semi-active control

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CAO Deng-qing;ZENG Jing;CHENG Wei-wei;CHEN Min. Time delay output feedback control of rail-bogie dynamic systems with MR dampers[J]. Journal of Vibration and Shock, 2009, 28(6): 135-138