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 booklet techniques the layout of lively vibration keep an eye on platforms from the viewpoint of today’s principles of desktop regulate. It formulates many 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 recommendations proposed on appropriate checks benches is usually addressed. to advertise the common recognition of those options, the presentation removes pointless theoretical advancements (which are available in other places) and makes a speciality of algorithms and their use. The strategies proposed can't be totally understood and creatively exploited with out a transparent knowing of the elemental ideas and strategies, so those are thought of extensive. the point of interest is on improving motivations, set of rules presentation and experimental overview. MATLAB®routines, Simulink® diagrams and bench-test information 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 huge band vibrations.

Adaptive and powerful lively Vibration Control will curiosity practicing engineers and aid them to procure new recommendations and strategies with stable functional validation. it may be used because the foundation for a path for graduate scholars in mechanical, mechatronics, commercial electronics, aerospace and naval engineering. Readers operating in lively noise keep an eye on also will become aware of strategies with a excessive measure of cross-over capability to be used of their field.

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Extra resources for Adaptive and Robust Active Vibration Control: Methodology and Tests

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Fr/~ioandore. landau/benchmark_adaptive_regulation/. 2 The primary path model is used only for simulation purposes. 24 Magnitude of the frequency response − identified parametric models 10 Secondary path Primary path 0 Magnitude [dB] Fig. 9 shows a distributed flexible mechanical structure equipped for implementing an AVC using feedforward and feedback compensation. 10 shows the details of the complete system including the AVC control scheme. The corresponding control block diagram is shown in Fig.

However, in the linear case with constant parameters one can use either one and their appropriate signification will result from the context. 3) are time-varying, while the concept of pulse transfer function does not simply exist in this case. 20) which corresponds also to the number of the poles of the irreducible transfer function of the system. 19) in the forward operator q and respectively the complex variable z. 21) G(z) = = r ¯ z A(z −1 ) A(z) Example z −3 (b1 z −1 + b2 z −2 ) 1 + a1 z −1 r = max(1, 5) = 5 b1 z + b2 G(z) = 5 z + a1 z 4 G(z −1 ) = 6 The order of the system will be in general estimated from input/output data.

1. A discrete time model with adjustable parameters is implemented on the computer. The error ε(t) between the system output at instant t, y(t) and the output predicted by the model yˆ (t) (called plant-model error or prediction error) is used by the parameter adaptation algorithm, which, at each sampling instant, will modify the model parameters in order to minimize this error (in the sense of a certain criterion). The key element for implementing the on-line estimation of the plant model parameters is the Parameter Adaptation Algorithm (PAA) which drives the parameters of the adjustable prediction model from the data acquired on the system at each sampling instant.

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