14th IFAC Symposium on System Identification, SYSID 2006

SYSID-2006 Paper Abstract

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Paper WeA6.2

Pivano, Luca (Norwegian Univ. of Science and Tech.), Fossen, Thor I. (Norwegian Univ. of Science and Tech.), Johansen, Tor Arne (Norwegian Univ. of Science and Tech.)

Nonlinear Model Identification of a Marine Propeller Over Four-Quadrant Operations

Scheduled for presentation during the Invited Session "Essential Aspects of Marine Systems Dynamics Identification" (WeA6), Wednesday, March 29, 2006, 10:50−11:10, Newcastle Room

14th IFAC Symposium on System Identification, March 29 - 31, 2006, Newcastle, Australia

This information is tentative and subject to change. Compiled on July 17, 2018

Keywords Nonlinear System Identification, Mechanical and Aerospace

Abstract

This paper proposes a nonlinear dynamics model for a marine propeller able to reproduce the propeller thrust over the full four-quadrant range of propeller shaft speed and vessel speed. A two-state model has been identified from experimental data. The model includes a state equation for the propeller shaft speed and one that describes the dynamics of the axial flow velocity. The model reproduces accurately propeller thrust and torque over a wide range of operation.