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Coordinating Control for a Fleet of Underactuated Ships

Shiriaev, A. ; Robertsson, Anders LU ; Freidovich, L. and Johansson, Rolf LU orcid (2006) 336. p.233-250
Abstract
We consider design of coordinating controllers for a fleet of underactuated ships. Each ship is modeled as a mechanical system with 3 degrees of freedom and 2 control inputs, which are the propeller thrust and the angle of the rudder; presence of lumped environmental forces is assumed. The proposed motion planning procedure relies. on properties of an auxiliary explicitly constructed second order dynamical system. We propose a procedure for motion planning for the whole fleet and for design of a coordinating feedback controller, which stabilizes the motion. In the case when geometric paths for ship motions are given, following our approach, we obtain a description of all feasible motions of the fleet along these paths. In addition, it is... (More)
We consider design of coordinating controllers for a fleet of underactuated ships. Each ship is modeled as a mechanical system with 3 degrees of freedom and 2 control inputs, which are the propeller thrust and the angle of the rudder; presence of lumped environmental forces is assumed. The proposed motion planning procedure relies. on properties of an auxiliary explicitly constructed second order dynamical system. We propose a procedure for motion planning for the whole fleet and for design of a coordinating feedback controller, which stabilizes the motion. In the case when geometric paths for ship motions are given, following our approach, we obtain a description of all feasible motions of the fleet along these paths. In addition, it is shown how to design controllers to counteract environmental forces while remaining on the paths. As a side result, we provide some modifications and give some insights into the weather optimal positioning control design, introduced in [1] for a fully actuated ship model. (Less)
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author
; ; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
host publication
Group Coordination and Cooperative Control (Lecture Notes in Control and Information Sciences)
volume
336
pages
233 - 250
publisher
Springer
external identifiers
  • wos:000241002300014
  • scopus:33947531373
ISSN
0170-8643
ISBN
978-3-540-33468-2
DOI
10.1007/11505532_14
project
RobotLab LTH
language
English
LU publication?
yes
id
faa5d21e-daa9-49d8-9bd8-e9180a6d1d8d (old id 386771)
date added to LUP
2016-04-01 15:50:18
date last changed
2023-01-04 19:29:30
@inbook{faa5d21e-daa9-49d8-9bd8-e9180a6d1d8d,
  abstract     = {{We consider design of coordinating controllers for a fleet of underactuated ships. Each ship is modeled as a mechanical system with 3 degrees of freedom and 2 control inputs, which are the propeller thrust and the angle of the rudder; presence of lumped environmental forces is assumed. The proposed motion planning procedure relies. on properties of an auxiliary explicitly constructed second order dynamical system. We propose a procedure for motion planning for the whole fleet and for design of a coordinating feedback controller, which stabilizes the motion. In the case when geometric paths for ship motions are given, following our approach, we obtain a description of all feasible motions of the fleet along these paths. In addition, it is shown how to design controllers to counteract environmental forces while remaining on the paths. As a side result, we provide some modifications and give some insights into the weather optimal positioning control design, introduced in [1] for a fully actuated ship model.}},
  author       = {{Shiriaev, A. and Robertsson, Anders and Freidovich, L. and Johansson, Rolf}},
  booktitle    = {{Group Coordination and Cooperative Control (Lecture Notes in Control and Information Sciences)}},
  isbn         = {{978-3-540-33468-2}},
  issn         = {{0170-8643}},
  language     = {{eng}},
  pages        = {{233--250}},
  publisher    = {{Springer}},
  title        = {{Coordinating Control for a Fleet of Underactuated Ships}},
  url          = {{http://dx.doi.org/10.1007/11505532_14}},
  doi          = {{10.1007/11505532_14}},
  volume       = {{336}},
  year         = {{2006}},
}