Skip to main content

2017 | Buch

Adaptive and Robust Active Vibration Control

Methodology and Tests

verfasst von: Ioan Doré Landau, Tudor-Bogdan Airimițoaie, Abraham Castellanos-Silva, Aurelian Constantinescu

Verlag: Springer International Publishing

Buchreihe : Advances in Industrial Control

insite
SUCHEN

Über dieses Buch

This book approaches the design of active vibration control systems from the perspective of today’s ideas of computer control. It formulates the various design problems encountered in the active management of vibration as control problems and searches for the most appropriate tools to solve them. The experimental validation of the solutions proposed on relevant tests benches is also addressed. To promote the widespread acceptance of these techniques, the presentation eliminates unnecessary theoretical developments (which can be found elsewhere) and focuses on algorithms and their use. The solutions proposed cannot be fully understood and creatively exploited without a clear understanding of the basic concepts and methods, so these are considered in depth. The focus is on enhancing motivations, algorithm presentation and experimental evaluation. MATLAB®routines, Simulink® diagrams and bench-test data are available for download and encourage easy assimilation of the experimental and exemplary material.

Three major problems are addressed in the book:

active damping to improve the performance of passive absorbers;

adaptive feedback attenuation of single and multiple tonal vibrations; and

feedforward and feedback attenuation of broad band vibrations.

Adaptive and Robust Active Vibration Control will interest practising engineers and help them to acquire new concepts and techniques with good practical validation. It can be used as the basis for a course for graduate students in mechanical, mechatronics, industrial electronics, aerospace and naval engineering. Readers working in active noise control will also discover techniques with a high degree of cross-over potential for use in their field.

Inhaltsverzeichnis

Frontmatter

Introduction to Adaptive and Robust Active Vibration Control

Frontmatter
Chapter 1. Introduction to Adaptive and Robust Active Vibration Control
Abstract
The reasons for doing active vibration control are emphasized as well as the principles of the basic approaches. Feedback and feedforward vibration compensation approaches are discussed from a unified point of view. The high performance required in the presence of variability of the vibration characteristics leads to the use of robust and adaptive designs for active vibration control systems. The challenges related to these approaches are described.
Ioan Doré Landau, Tudor-Bogdan Airimitoaie, Abraham Castellanos-Silva, Aurelian Constantinescu
Chapter 2. The Test Benches
Abstract
Three relevant test benches will be used to illustrate the achievable performance using the techniques proposed in this book. Models of these systems have been obtained by system identification from real-time data. The frequency characteristics for the identified model will be presented. Details on the identification procedure will be given later (Chap. 6).
Ioan Doré Landau, Tudor-Bogdan Airimitoaie, Abraham Castellanos-Silva, Aurelian Constantinescu

Techniques for Active Vibration Control

Frontmatter
Chapter 3. Active Vibration Control Systems—Model Representation
Abstract
In this chapter the elements and the basic concepts of computer-controlled systems will be presented. The discretization and choice of sampling frequency will be first examined, followed by a brief review of discrete-time models.
Ioan Doré Landau, Tudor-Bogdan Airimitoaie, Abraham Castellanos-Silva, Aurelian Constantinescu
Chapter 4. Parameter Adaptation Algorithms
Abstract
Parameter adaptation algorithms are the key step for estimating the parameters of the discrete time dynamic model of the system to be controlled and for building an adaptive active vibration control system. A coverage of the subject is provided from the perspective of the user. Stability and convergence issues are addressed.
Ioan Doré Landau, Tudor-Bogdan Airimitoaie, Abraham Castellanos-Silva, Aurelian Constantinescu
Chapter 5. Identification of the Active Vibration Control Systems—The Bases
Abstract
In this chapter, the basic principles of identification of dynamic systems from input–output data are reviewed. The various steps of the system identification procedure are emphasized. Algorithms which were successfully used for identification of active vibration control systems are presented.
Ioan Doré Landau, Tudor-Bogdan Airimitoaie, Abraham Castellanos-Silva, Aurelian Constantinescu
Chapter 6. Identification of the Test Benches in Open-Loop Operation
Abstract
This chapter focuses on the identification of the dynamic models of the three test benches presented in Chap. 2. The techniques discussed in Chap. 5 are used.
Ioan Doré Landau, Tudor-Bogdan Airimitoaie, Abraham Castellanos-Silva, Aurelian Constantinescu
Chapter 7. Digital Control Strategies for Active Vibration Control—The Bases
Abstract
This chapter reviews basic digital control strategies and their application to active vibration control. The design of polynomial controllers (RS controllers) is discussed both from performance and robustness perspectives. The importance of sensitivity functions is enhanced. A number of basic concepts are defined and explained. A real-time example of an active vibration control (suppression of a tonal vibration) illustrates the design methodology presented in this chapter.
Ioan Doré Landau, Tudor-Bogdan Airimitoaie, Abraham Castellanos-Silva, Aurelian Constantinescu
Chapter 8. Identification in Closed-Loop Operation
Abstract
Identification in closed-loop operation offers the possibility to identify system models for controller redesign leading to improved performance. It also allows retuning of existing controllers without opening the loop. Specific aspects related to active vibration control systems will be enhanced. Closed-Loop Output Error (CLOE) method which has already been used in the context of AVC will be presented. Validation techniques for identification in closed-loop will be reviewed. A real-time example will illustrate the methodology.
Ioan Doré Landau, Tudor-Bogdan Airimitoaie, Abraham Castellanos-Silva, Aurelian Constantinescu
Chapter 9. Reduction of the Controller Complexity
Abstract
Controller complexity reduction is an issue in many applications. The key objectives of controller complexity reduction is to obtain a reduced order controller which preserves the closed-loop properties of the nominal closed-loop system (stability, robustness, performance). The techniques for controller complexity (order) reduction which will be presented are based on the estimation in closed-loop of a reduced order controller. Methods for the validation of the estimated reduced order controllers are also presented. The use of these techniques is illustrated by an example in robust control design of an active vibration control system.
Ioan Doré Landau, Tudor-Bogdan Airimitoaie, Abraham Castellanos-Silva, Aurelian Constantinescu

Active Damping

Frontmatter
Chapter 10. Active Damping
Abstract
The goal of this chapter is to present the problem of active damping, which consists of reducing the effect of the resonant peaks of a system (damping resonance modes) without changing their frequencies. The design aspects of active damping systems are illustrated in detail by considering the active suspension presented in Chap. 2. The results of the design are evaluated experimentally.
Ioan Doré Landau, Tudor-Bogdan Airimitoaie, Abraham Castellanos-Silva, Aurelian Constantinescu

Feedback Attenuation of Narrow-Band Disturbances

Frontmatter
Chapter 11. Robust Controller Design for Feedback Attenuation of Narrow-Band Disturbances
Abstract
This chapter deals with the design of robust linear feedback controllers for attenuation of narrow-band disturbances. The design is based on the shaping of the output sensitivity function using the band-stop filters presented in Chap. 7. Two scenarios are considered. The first one concerns the attenuation of disturbances with time-varying frequencies within a limited frequency range around a central frequency. The second scenario considers the attenuation of vibrational interference caused by several tonal disturbances located very close to each other in the frequency domain. The proposed solutions are validated on an active vibration control system.
Ioan Doré Landau, Tudor-Bogdan Airimitoaie, Abraham Castellanos-Silva, Aurelian Constantinescu
Chapter 12. Direct Adaptive Feedback Attenuation of Narrow-Band Disturbances
Abstract
This chapter presents the basic algorithm for direct adaptive feedback attenuation of unknown and time-varying narrow-band disturbances. This algorithm implements the Internal Model Principle for disturbance attenuation using a Youla–Kučera parametrization for the controller. The use of a FIR Youla–Kučera filter allows to develop a direct adaptive scheme where the poles of the closed-loop defined by the central controller remain unchanged. Specific robustness issues for the design of the central controller are discussed. Experimental results obtained on the bench tests presented in Chap. 2 will illustrate the performance of the algorithm.
Ioan Doré Landau, Tudor-Bogdan Airimitoaie, Abraham Castellanos-Silva, Aurelian Constantinescu
Chapter 13. Adaptive Attenuation of Multiple Sparse Unknown and Time-Varying Narrow-Band Disturbances
Abstract
This chapter considers the possible solutions for adaptive attenuation of multiple sparse unknown and time-varying narrow-band disturbances. One takes also into account the possible presence of low damped complex zeros in the vicinity of the attenuation region. The problem of the design of the underlined linear controller for the known disturbance case is itself a challenging problem and is discussed first. The adaptive schemes proposed are obtained by extending the linear solutions to the case of unknown characteristics of the disturbances. Comparative experimental evaluation of the various solutions on a test bench are given.
Ioan Doré Landau, Tudor-Bogdan Airimitoaie, Abraham Castellanos-Silva, Aurelian Constantinescu

Feedforward-Feedback Attenuation of Broad-Band Disturbances

Frontmatter
Chapter 14. Design of Linear Feedforward Compensation of Broad-band Disturbances from Data
Abstract
Feedback controllers cannot be used when strong attenuation over a broad frequency band is required. In such situations, the solution is to design feedforward compensators using a measurement correlated with the disturbance obtained upstream from the residual acceleration (or force). Nevertheless, a “positive” feedback from control signal to disturbance measurement is introduced that can destabilize the system. Indirect and direct approaches for the design of linear feedforward compensators will be presented. The indirect approach uses identified models for feedforward compensator design while the direct approach estimates directly the feedforward compensator from data.
Ioan Doré Landau, Tudor-Bogdan Airimitoaie, Abraham Castellanos-Silva, Aurelian Constantinescu
Chapter 15. Adaptive Feedforward Compensation of Disturbances
Abstract
Adaptive feedforward compensation algorithms for the attenuation of broad-band disturbances are developed in this chapter. The proposed algorithms take into account the “positive” feedback coupling which appears in active vibration control systems using feedforward compensation. One considers also the case when a fixed feedback controller is present. The algorithms are evaluated in real time on the active flexible mechanical structure actuated by an inertial actuator which has been presented in Chap. 2.
Ioan Doré Landau, Tudor-Bogdan Airimitoaie, Abraham Castellanos-Silva, Aurelian Constantinescu
Chapter 16. Youla–Kučera Parametrized Adaptive Feedforward Compensators
Abstract
In this chapter one considers a Youla–Kučera parametrization of the feedforward compensator in the context of the “positive” feedback coupling which appears in active vibration control systems. The central Youla–Kučera controller will stabilize the internal “positive” feedback loop and an infinite (or finite) impulse response adaptive Youla–Kučera filter will be used to optimize the performance. The algorithms are evaluated in real time on the active flexible mechanical structure actuated by an inertial actuator which has been presented in Chap. 2.
Ioan Doré Landau, Tudor-Bogdan Airimitoaie, Abraham Castellanos-Silva, Aurelian Constantinescu
Backmatter
Metadaten
Titel
Adaptive and Robust Active Vibration Control
verfasst von
Ioan Doré Landau
Tudor-Bogdan Airimițoaie
Abraham Castellanos-Silva
Aurelian Constantinescu
Copyright-Jahr
2017
Electronic ISBN
978-3-319-41450-8
Print ISBN
978-3-319-41449-2
DOI
https://doi.org/10.1007/978-3-319-41450-8