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Inverse simulation methods applied to investigation of actuator nonlinearities in ship steering

Murray-Smith, D. J. (2016) Inverse simulation methods applied to investigation of actuator nonlinearities in ship steering. Simulation Notes Europe, 26(4), pp. 245-256. (doi: 10.11128/sne.26.tn.10356)

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Abstract

Actuators associated with control surfaces in aircraft, ships and underwater vehicles often introduce problems in terms of the control characteristics of the vehicle if significant saturation and rate limiting effects are present. Rate limits, in particular, have been linked to a number of well-publicised safety and handling-qualities issues for aircraft. Such limits also present difficulties in ship steering and ship autopilot systems. This paper describes an investigation of the effects of actuator nonlinearities involving a ship steering control application. The method of approach involves the use of inverse simulation to detect the onset of limiting. The paper shows that inverse simulation methods allow direct prediction of situations in which rudder saturation and rate limit-ing have significant effects in terms of the manoeuvrability of the vessel. It is also shown that a two-stage inverse-simulation method allows direct assessment of the difference between desired and achievable manoeuvres.

Item Type:	Articles
Keywords:	Inverse, simulation, ship, steering, actuator, saturation, rate limit.
Status:	Published
Refereed:	Yes
Glasgow Author(s) Enlighten ID:	Murray-Smith, Professor David
Authors:	Murray-Smith, D. J.
Subjects:	Q Science > QA Mathematics > QA76 Computer software T Technology > T Technology (General) T Technology > TJ Mechanical engineering and machinery V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering
College/School:	College of Science and Engineering > School of Engineering
Journal Name:	Simulation Notes Europe
Journal Abbr.:	SNE
Publisher:	ARGESIM
ISSN:	2306-0271
Related URLs:	Publisher

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References

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Deposit and Record Details

ID Code:	148256
Depositing User:	Professor David Murray-Smith
Datestamp:	18 Sep 2017 09:00
Last Modified:	28 May 2020 17:11
Date of acceptance:	5 December 2016
Date of first online publication:	December 2016
Date Deposited:	25 September 2017
Data Availability Statement:	No