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 booklet methods the layout of energetic vibration keep an eye on structures from the viewpoint of today’s rules of machine keep an eye on. It formulates a number of the layout difficulties encountered within the energetic administration of vibration as keep an eye on difficulties and searches for the main acceptable instruments to unravel them. The experimental validation of the options proposed on proper exams benches can also be addressed. to advertise the frequent reputation of those strategies, the presentation gets rid of pointless theoretical advancements (which are available somewhere else) and specializes in algorithms and their use. The strategies proposed can't be absolutely understood and creatively exploited with no transparent realizing of the fundamental techniques and strategies, so those are thought of extensive. the point of interest is on bettering 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 wide band vibrations.
Adaptive and powerful lively Vibration Control will curiosity working towards engineers and support them to obtain new recommendations and strategies with strong functional 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 lively noise keep an eye on also will notice innovations with a excessive measure of cross-over strength to be used of their field.
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Additional resources for Adaptive and Robust Active Vibration Control: Methodology and Tests
Elliott S, Sutton T (1996) Performance of feedforward and feedback systems for active control. IEEE Trans Speech Audio Process 4(3):214–223. 496217 13. Kuo S, Morgan D (1999) Active noise control: a tutorial review. Proc IEEE 87(6):943–973. 763310 16 1 Introduction to Adaptive and Robust Active Vibration Control 14. Hu J, Linn J (2000) Feedforward active noise controller design in ducts without independent noise source measurements. IEEE Trans Control Syst Technol 8(3):443–455 15. Jacobson C, Johnson CR, Jr, McCormick D, Sethares W (2001) Stability of active noise control algorithms.
This kind of model, necessary for design, can be obtained directly from an experimental test using the techniques of “System Identification” (this will be discussed in Chaps. 5 and 6). In most AVC systems the characteristics of the compensator systems remain almost unchanged during operation. This means that the associated dynamic control model remains almost unchanged and therefore the parameters of the identified model are almost constant. Nevertheless, for controller design we need the “model of the disturbance” in addition.
Except in very particular cases, all the discrete-time models will feature a fractional delay. Fractional delays are reflected as zeros in the transfer function of the discrete-time models (these zeros will be unstable if the fractional delay is larger that half of the sampling period ). For continuous-time systems with a relative degree higher or equal to 2, high frequency sampling will induce unstable zeros . The consequence of the presence of unstable zeros in the discrete-time models used for control design is that control strategies based on cancelling the zeros cannot be used.
Adaptive and Robust Active Vibration Control: Methodology and Tests by Ioan Doré Landau, Tudor-Bogdan Airimițoaie, Abraham Castellanos-Silva, Aurelian Constantinescu