Robust Residual Vibration Suppression for Linear Time Invariant Systems by Digital Filtering of the Guidance Function

Antoniadis, Ioannis; Economou, D.

doi:10.1006/mssp.2000.1384

Cited by 6 publications

(3 citation statements)

References 16 publications

(22 reference statements)

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“…Thus, an appropriate extra insensitive lter capable of suppressing the transient and residual vibrations of the crane load should be of the low-pass type, covering the following requirements [17]:…”

Section: Input Preconditioning Using Fir Ltersmentioning

confidence: 99%

“…Although the input preconditioning approach using FIR digital lters is theoretically developed for linear time-invariant (LTI) systems [17], it can also be used, in the case of the considered non-linear time-varying system, under the following constraints.…”

Section: Input Preconditioning Using Fir Ltersmentioning

confidence: 99%

“…In order to overcome the above problems of limited robustness offered by the existing open-loop or 'input shaping' methods, a new framework has been proposed, according to which the design of an appropriate guidance function for vibration suppression can be transformed to the proper design of a low-pass digital lter [17]. The effectiveness of conventional nite impulse response (FIR) lters for residual vibration suppression has been further demonstrated thoroughly, both theoretically and experimentally [18].…”

Section: Introductionmentioning

confidence: 99%

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Payload sway suppression in rotary cranes by digital filtering of the commanded inputs

Glossiotis

Antoniadis

2003

Proceedings of the Institution of Mechanical Engineers, Part K:

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A method is proposed for the suppression of the sway of rotary crane payloads. In contrast to closed-loop control methods which encounter significant practical application problems, the proposed method is based simply on the preprocessing of all the commanded crane inputs by a properly designed finite impulse response (FIR) filter. A four-degrees-of-freedom (4DOF) model for the rotary crane system is considered, incorporating both the hoisting and the slewing motions and thus able to handle cases where hoisting can be simultaneously applied to the rotary motion. Although the resulting dynamic system is strongly non-linear and time varying, the method is shown effectively to suppress, in a quite robust, time and energy efficient way, both the transient as well as the residual sway of the payload. Moreover, additional advantages of the proposed method are that no dynamic modelling of the crane is required, and that the applicability of the method is quite easy and general, without the need for any additional instrumentation and control equipment.

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Section: Input Preconditioning Using Fir Ltersmentioning

confidence: 99%

Section: Input Preconditioning Using Fir Ltersmentioning

confidence: 99%