Position- and speed-control of torque-transmission systems that incorporate flexible drive-shafts

Authors: Flower, J.O.; Monajemi, A.

Source: Proceedings of IMarEST - Part A - Journal of Marine Engineering and Technology, Volume 2003, Number 3, September 2003 , pp. 27-34(8)

Publisher: IMarEST

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Abstract:

Engineering systems often number very-flexible members among their component parts, eg long shafts, springs, connectors etc. Marine industries provide good examples of such systems. This papers concerns a speed- and a position control-system that contains certain elements having large inertias and a flexible shaft. Such systems are, in practice, very prone to vibrational and/or stability problems. The basic system used in this study was that proposed by Walley et al. The control-system architecture was arranged in a cascaded form that allows proper attention to engineering design and instrumentation considerations from the outset. That is, the physical viewpoint is to the fore and any mathematics acts in a handmaiden capacity. The design technique used is based upon the, so-called, pseudoderivative-feedback algorithm, due to Phelan. The performance of the two systems is examined, with particular reference to step-changes in demand and external loading, and the sensitivity to system-parameter variations.

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Document Type: Research article

Publication date: 2003-09-01

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