A Four-Quadrant Thrust Estimation Scheme Based on Chebyshev Fit and Experiment of Ship Model
Baoyu Ye1, Qinruo Wang2, Jiafu Wan*, 3, Yi Peng2, Jianbin Xiong2
Identifiers and Pagination:Year: 2012
First Page: 148
Last Page: 154
Publisher Id: TOMEJ-6-148
Article History:Received Date: 11/6/2012
Revision Received Date: 18/7/2012
Acceptance Date: 19/7/2012
Electronic publication date: 28/12/2012
Collection year: 2012
open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: (https://creativecommons.org/licenses/by/4.0/legalcode). This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
This paper proposes a thrust estimation scheme for marine propellers in four-quadrant operations. To calculate the thrust and torque coefficients of screw propeller in four-quadrant, a Chebyshev fit expression of the propeller properties in four-quadrant for surface vessel is given, and then it is changed into an ordinary polynomial expression. These expressions are suitable for calculating the value of the propeller thrust and convenient for studying the ship's maneuverability. On the basis of ship-propeller movement characteristics, the dynamical models of propeller in fourquadrant operations are given. The effectiveness of the proposed thrust estimation scheme is validated by experimental results derived from an electrically driven fixed pitch propeller, which provides a good reference for the vessel operations.