By Ioan Doré Landau, Tudor-Bogdan Airimițoaie, Abraham Castellanos-Silva, Aurelian Constantinescu
This ebook methods the layout of lively vibration keep watch over platforms from the point of view of today’s principles of desktop keep an eye on. It formulates a few of the layout difficulties encountered within the energetic administration of vibration as regulate difficulties and searches for the main applicable instruments to unravel them. The experimental validation of the suggestions proposed on appropriate exams benches can be addressed. to advertise the frequent recognition of those recommendations, the presentation removes pointless theoretical advancements (which are available in other places) and makes a speciality of algorithms and their use. The options proposed can't be totally understood and creatively exploited with no transparent realizing of the fundamental thoughts and techniques, so those are thought of intensive. the focal point is on bettering motivations, set of rules presentation and experimental overview. MATLAB®routines, Simulink® diagrams and bench-test facts 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 large band vibrations.
Adaptive and powerful lively Vibration Control will curiosity practicing engineers and support them to procure new options and methods with stable functional validation. it may be used because the foundation for a path for graduate scholars in mechanical, mechatronics, business electronics, aerospace and naval engineering. Readers operating in energetic noise regulate also will detect ideas with a excessive measure of cross-over capability to be used of their field.
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Additional resources for Adaptive and Robust Active Vibration Control: Methodology and Tests (Advances in Industrial Control)
In general, ANVC systems also present a positive coupling path (also called the reverse path) between the control signal u(t) and the measured signal y1 (t), which is shown in Fig. 6. This results in an internal positive feedback that can destabilize the ANVC system if not taken into account. The objective is that of minimizing the performance variable, e(t), and stabilizing the system, by computing an appropriate control, u(t), based on the measurements e(t) and y1 (t). One can see that, in the control system architecture presented in Fig.
Therefore, anti-aliasing filters should always be introduced in order to remove the undesirable components of the signal. Anti-aliasing filters are constituted in general as several second order filters in cascade (Bessel, ITAE, Butterworth type). They should introduce a consequent attenuation of the signal beyond f s /2 but their bandwidth should be larger than the desired closed-loop bandwidth. 34 3 Active Vibration Control Systems—Model Representation Their design will also depend on the level of undesirable signals at frequencies beyond f s /2.
Preumont A (2011) Vibration control of active structures—an introduction. Springer, Heidelberg 6. Landau I, Zito G (2005) Digital control systems—design, identification and implementation. Springer, London 7. Landau ID, Silva AC, Airimitoaie TB, Buche G, Noé M (2013) Benchmark on adaptive regulation—rejection of unknown/time-varying multiple narrow band disturbances. Eur J Control 19(4):237–252. 007 8. Alma M, Martinez J, Landau I, Buche G (2012) Design and tuning of reduced order H∞ feedforward compensators for active vibration control.