Metaheuristic algorithm-based optimisation of an elastic metamaterial for robust control of multiple modes of vibration in a structure with parametric uncertainty

2019 ◽  
Vol 146 (4) ◽  
pp. 2877-2877
Author(s):  
Lawrence Singleton ◽  
Jordan Cheer ◽  
Stephen Daley
Keyword(s):  
Robust Control ◽  
Parametric Uncertainty ◽  
Metaheuristic Algorithm ◽  
Multiple Modes ◽  
Modes Of Vibration

Robust vibration control of flexible panel: modeling and simulation

2017 ◽  
Vol 14 (5) ◽  
pp. 433-442
Author(s):  
Aalya Banu ◽  
Asan G.A. Muthalif
Keyword(s):  
Robust Control ◽  
Vibration Control ◽  
Controller Design ◽  
Control Strategies ◽  
Active Vibration Control ◽  
Flexible Structures ◽  
Parametric Uncertainty ◽  
Design Algorithm ◽  
Content Type ◽  
And Performance

Purpose This paper aims to develop a robust controller to control vibration of a thin plate attached with two piezoelectric patches in the presence of uncertainties in the mass of the plate. The main goal of this study is to tackle dynamic perturbation that could lead to modelling error in flexible structures. The controller is designed to suppress first and second modal vibrations. Design/methodology/approach Out of various robust control strategies, μ-synthesis controller design algorithm has been used for active vibration control of a simply supported thin place excited and actuated using two piezoelectric patches. Parametric uncertainty in the system is taken into account so that the robust system will be achieved by maximizing the complex stability radius of the closed-loop system. Effectiveness of the designed controller is validated through robust stability and performance analysis. Findings Results obtained from numerical simulation indicate that implementation of the designed controller can effectively suppress the vibration of the system at the first and second modal frequencies by 98.5 and 88.4 per cent, respectively, despite the presence of structural uncertainties. The designed controller has also shown satisfactory results in terms of robustness and performance. Originality/value Although vibration control in designing any structural system has been an active topic for decades, Ordinary fixed controllers designed based on nominal parameters do not take into account the uncertainties present in and around the system and hence lose their effectiveness when subjected to uncertainties. This paper fulfills an identified need to design a robust control system that accommodates uncertainties.

Modeling and Active Vibration Control for Bridge Tower Structures Under Construction

1997 ◽  
Author(s):  
Kazuto Seto ◽  
Fumio Doi ◽  
Mingzhang Ren
Keyword(s):  
Robust Control ◽  
Control Theory ◽  
Active Vibration Control ◽  
Flexible Structures ◽  
Suboptimal Control ◽  
Lumped Mass ◽  
Modes Of Vibration ◽  
Active Vibration ◽  
Under Construction ◽  
Bridge Tower

Abstract For controlling multi-modes of vibration of flexible bridge towers under construction, a lumped mass modeling method and a new method of simple robust control are proposed. Although the robust control theory such as H∞ theory is useful for controlling systems with unknown factors and variable parameters, it is not effective to control multi-modes of vibration of flexible structures. This proposed methods are specified by combining the suboptimal control theory for reducing sensor number and filtering technique for preventing spillover of neglected high modes of vibration. Effectiveness of the method is demonstrated by showing that the first five modes of vibration of a model structure of flexible bridge tower are well controlled without spillover of neglected high modes.

scholarly journals Robust control of nonlinear systems with parametric uncertainty

Automatica ◽  
2002 ◽  
Vol 38 (9) ◽  
pp. 1591-1599 ◽  
Author(s):  
Qian Wang ◽  
Robert F. Stengel
Keyword(s):  
Robust Control ◽  
Nonlinear Systems ◽  
Parametric Uncertainty

Network modeling of multiple-port transducers across multiple modes of vibration

2013 ◽  
Vol 134 (5) ◽  
pp. 4185-4185
Author(s):  
Michael L. Kuntzman ◽  
Nishshanka N. Hewa-Kasakarage ◽  
Donghwan Kim ◽  
Neal A. Hall
Keyword(s):  
Network Modeling ◽  
Multiple Modes ◽  
Modes Of Vibration
Sign in / Sign up

Export Citation Format

Share Document