Methods of Inverse Simulation For Nonlinear Ship Steering Systems Investigations

Murray-Smith, D.J. (2015) Methods of Inverse Simulation For Nonlinear Ship Steering Systems Investigations. In: 8th Vienna Conference on Mathematical Modelling, Vienna, Austria, 18-20 Feb 2015, pp. 335-336. ISBN 9783901608469

Abstract

The paper describes the application of two inverse simulation methods based on continuous system simulation principles to a ship model which incorporates a rudder actuator sub-model with saturation and rate limits. One approach depends on feedback principles while the other involves the use of an approximate differentiation method. If the actuator is operating in a linear fashion the two inverse simulation methods give very similar results. However, the differentiation method cannot be used with hard limiting and nonlinear oscillatory phenomena may cause problems with the feedback approach in such cases. An approximate two-stage procedure that avoids these difficulties is presented. Inverse simulation allows the onset of limiting to be detected and can provide useful insight about vehicle handling and manoeuvrability more directly thab conventional simulation methods.

• Item Type: Conference Proceedings
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Murray-Smith, Professor David
• Authors: Murray-Smith, D.J.
• College/School: College of Science and Engineering > School of Engineering > Systems Power and Energy
• ISBN: 9783901608469

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