Vibration - Free Positioning Of Flexible Systems Using Filtering Technique

Esmie Khalik Mohamad, Ismail (2008) Vibration - Free Positioning Of Flexible Systems Using Filtering Technique. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

Filtering technique is one of the simple techniques to reduce the residual vibration in positioning lightly damped systems. It is use to shape the input function by using Bang-bang input. This technique will be applied to the gantry crane system where it is one of the examples for positioning lightly damped systems. Positioning a crane swinging load, at the bottom end of a cable, by moving a gantry trolley at the top, involve resolving the apparently conflicting of demands of exact load positioning and active swing damping. By contrast, when using filtering technique, assuming an idealized cable, stops the load dead, exactly at the target in a finite time for all. In the other word this method is used to position the trolley and to reduce the sway angle of the load. The simulation has been done to the fourth order system to study the application of the technique to the system by using Matlab. The performance of this method has been compared with other input shaping technique. By using the proposed method, satisfactory in the reduction vibration during positioning the trolley of a crane and reduction of sway angle of payload has been achieved.

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