Download Adaptive and Robust Active Vibration Control: Methodology by Ioan Doré Landau, Tudor-Bogdan Airimițoaie, Abraham PDF
By Ioan Doré Landau, Tudor-Bogdan Airimițoaie, Abraham Castellanos-Silva, Aurelian Constantinescu
This ebook ways the layout of energetic vibration keep an eye on platforms from the viewpoint of today’s principles of laptop keep an eye on. It formulates many of the layout difficulties encountered within the lively administration of vibration as regulate difficulties and searches for the main acceptable instruments to unravel them. The experimental validation of the recommendations proposed on suitable assessments benches can also be addressed. to advertise the frequent recognition of those concepts, the presentation gets rid of pointless theoretical advancements (which are available in different places) and makes a speciality of algorithms and their use. The recommendations proposed can't be totally understood and creatively exploited with no transparent realizing of the elemental innovations and strategies, so those are thought of extensive. the focal point is on improving motivations, set of rules presentation and experimental evaluate. MATLAB®routines, Simulink® diagrams and bench-test info can be found for obtain and inspire effortless assimilation of the experimental and exemplary material.
Three significant difficulties are addressed within the book:
- active damping to enhance the functionality of passive absorbers;
- adaptive suggestions attenuation of unmarried and a number of tonal vibrations; and
- feedforward and suggestions attenuation of extensive band vibrations.
Adaptive and strong energetic Vibration Control will curiosity practicing engineers and aid them to procure new innovations and methods with strong useful validation. it may be used because the foundation for a direction for graduate scholars in mechanical, mechatronics, commercial electronics, aerospace and naval engineering. Readers operating in energetic noise keep an eye on also will detect ideas with a excessive measure of cross-over strength to be used of their field.
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Additional info for Adaptive and Robust Active Vibration Control: Methodology and Tests
The design of the control algorithm will be based on identified discrete-time dynamical models of the system. 2 Digital Control Systems In this section, one reviews the basic requirements for the implementation of a digital control system. For a more detailed discussion of the various aspects see [3–6]. 1 represents the structure of a digital control system. In Fig. 1, the set3 : Digital to Analog Converter (D/A), Zero order hold (ZOH),4 Continuous-time plant, Analog to Digital Converter (A/D) constitutes the discrete-time system to be controlled by a digital controller implemented on the computer used for control.
3 the normalized discrete time will be denoted by t. 4 ZOH keeps constant the signal delivered by the D/A converter between two sampling instants. 1 System Description 33 Fig. 1) where • f s = sampling frequency (in Hz); • f BC L = desired bandwidth of the closed-loop system (in Hz). Of course, the desired closed-loop bandwidth is related to the bandwidth of the system to be controlled. 1) gives enough freedom for the selection of the sampling frequency. As a general rule, one tries to select the lower sampling frequency compatible with the desired performances.
Landau I, Alma M, Airimitoaie T (2011) Adaptive feedforward compensation algorithms for active vibration control with mechanical coupling. Automatica 47(10):2185–2196. 1 Continuous-Time Versus Discrete-Time Dynamical Models Before discussing the system description aspects, one has to take in account that the control law will be implemented on a digital computer. To do this there are two basic options: • Represent the system in continuous time, compute the control law in continuous time and then discretize the continuous-time control law for implementation.