Eigenfrequency assignment and eigenvalue assignment in mechanical vibration control systems

1998 ◽  
Author(s):  
M. Loccufier
Keyword(s):  
Vibration Control ◽  
Control Systems ◽  
Mechanical Vibration ◽  
Eigenvalue Assignment

Frequency Shaped Semi-Active Control for Magnetorheological Fluid-Based Vibration Control Systems

2013 ◽  
Author(s):  
Young-Tai Choi ◽  
Norman M. Wereley ◽  
Gregory J. Hiemenz
Keyword(s):  
Vibration Control ◽  
Control Systems ◽  
Active Control ◽  
Control Algorithm ◽  
Active Vibration Control ◽  
Control Algorithms ◽  
Model Parameters ◽  
Mr Fluid ◽  
Control Current ◽  
Active Vibration

Novel semi-active vibration controllers are developed in this study for magnetorheological (MR) fluid-based vibration control systems, including: (1) a band-pass frequency shaped semi-active control algorithm, (2) a narrow-band frequency shaped semi-active control algorithm. These semi-active vibration control algorithms designed without resorting to the implementation of an active vibration control algorithms upon which is superposed the energy dissipation constraint. These new Frequency Shaped Semi-active Control (FSSC) algorithms require neither an accurate damper (or actuator) model, nor system identification of damper model parameters for determining control current input. In the design procedure for the FSSC algorithms, the semi-active MR damper is not treated as an active force producing actuator, but rather is treated in the design process as a semi-active dissipative device. The control signal from the FSSC algorithms is a control current, and not a control force as is typically done for active controllers. In this study, two FSSC algorithms are formulated and performance of each is assessed via simulation. Performance of the FSSC vibration controllers is evaluated using a single-degree-of-freedom (DOF) MR fluid-based engine mount system. To better understand the control characteristics and advantages of the two FSSC algorithms, the vibration mitigation performance of a semi-active skyhook control algorithm, which is the classical semi-active controller used in base excitation problems, is compared to the two FSSC algorithms.

Developments in Structural Optimization and Applications to Intelligent Structural Vibration Control

2007 ◽  
pp. 101-121 ◽  
Author(s):  
Faruque Ali ◽  
Ananth Ramaswamy
Keyword(s):  
Vibration Control ◽  
Control Systems ◽  
Intelligent Control ◽  
Structural Control ◽  
Structural Engineering ◽  
Real Life ◽  
Fuzzy Rule ◽  
Structural Vibration ◽  
Rule Base ◽  
The Subject

The chapter introduces developments in intelligent optimal control systems and their applications in structural engineering. It provides a good background on the subject starting with the shortcomings of conventional vibration control techniques and the need for intelligent control systems. Description of a few basic tools required for intelligent control such as evolutionary algorithms, fuzzy rule base, and so forth, is outlined. Examples on vibration control of benchmark building and bridge under seismic excitation are presented to provide better insight on the subject. The chapter provides necessary background for a reader to work in intelligent structural control systems with real-life examples. Current trends in the research area are given and challenges put forward for further research.

Methodology for the Design of Feedback Active Vibration Control Systems

2004 ◽  
pp. 193-209 ◽  
Author(s):  
Ioan Doré Landau ◽  
Aurelian Constantinescu ◽  
Daniel Rey ◽  
Alphonse Franco ◽  
Patrice Loubat
Keyword(s):  
Vibration Control ◽  
Control Systems ◽  
Active Vibration Control ◽  
Active Vibration

Identification of the Active Vibration Control Systems—The Bases

2016 ◽  
pp. 81-97
Author(s):  
Ioan Doré Landau ◽  
Tudor-Bogdan Airimitoaie ◽  
Abraham Castellanos-Silva ◽  
Aurelian Constantinescu
Keyword(s):  
Vibration Control ◽  
Control Systems ◽  
Active Vibration Control ◽  
Active Vibration
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