Optimal vibration control and co-design of very flexible actuated structures
File(s)
Accepted version
Published version
Author(s)
Maraniello, S
Palacios Nieto, R
Type
Journal Article
Abstract
The single shooting method is applied to the optimal control and combined structural and control design (co-design) of very flexible beams. The objective is to assess feasibility, advantages and limitations of an integrated design approach when dealing with actuated structures exhibiting large oscillations and, more generally, strongly nonlinear couplings. A gradient based approach is proposed for the large design space defined by both the optimal control and co-design problems. Numerical studies are presented for the case of a very flexible actuated pendulum with large rigid-body motion. The impact of local (B-splines) and global (discrete sines) set of basis functions is investigated for increasing levels of actuation authority, showing the importance of the time–frequency resolution of the parametrisation on the convergence properties and outcome quality of the process. Locking between control and structural disciplines around specific design points is found, thus highlighting the disadvantage of a sequential design approach. Simultaneous designing of control law and structure is seen, instead, to explore efficiently larger regions of the design space.
Date Issued
2016-05-24
Date Acceptance
2016-05-11
Citation
Journal of Sound and Vibration, 2016, 377, pp.1-21
ISSN
1095-8568
Publisher
Elsevier
Start Page
1
End Page
21
Journal / Book Title
Journal of Sound and Vibration
Volume
377
Copyright Statement
© 2016 The Authors. Published by Elsevier Ltd. This is an open access article under the CC
BY license (http://creativecommons.org/licenses/by/4.0/).
BY license (http://creativecommons.org/licenses/by/4.0/).
License URL
Sponsor
Engineering & Physical Science Research Council (EPSRC)
Grant Number
EP/I014683/1
Subjects
Science & Technology
Technology
Acoustics
Engineering, Mechanical
Mechanics
Engineering
Vibration control
Optimization
Co-design
Control vector parametrisation
Single-shooting
Geometrically-nonlinear beams
OPTIMIZATION
AIRCRAFT
DYNAMICS
SYSTEMS
TIME
ARM
02 Physical Sciences
09 Engineering
Publication Status
Published