Download PDF by Ioan Doré Landau, Tudor-Bogdan Airimițoaie, Abraham: Adaptive and Robust Active Vibration Control: Methodology

By Ioan Doré Landau, Tudor-Bogdan Airimițoaie, Abraham Castellanos-Silva, Aurelian Constantinescu

ISBN-10: 3319414496

ISBN-13: 9783319414492

ISBN-10: 331941450X

ISBN-13: 9783319414508

This e-book ways the layout of lively vibration regulate structures from the point of view of today’s principles of computing device regulate. It formulates many 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 recommendations proposed on proper assessments benches can be addressed. to advertise the common reputation of those options, the presentation gets rid of pointless theoretical advancements (which are available in different places) and makes a speciality of algorithms and their use. The ideas proposed can't be totally understood and creatively exploited and not using a transparent realizing of the elemental recommendations and strategies, so those are thought of intensive. the point of interest is on bettering motivations, set of rules presentation and experimental assessment. 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 vast band vibrations.

Adaptive and powerful lively Vibration Control will curiosity training engineers and aid them to obtain new techniques and strategies with sturdy useful validation. it may be used because the foundation for a direction for graduate scholars in mechanical, mechatronics, business electronics, aerospace and naval engineering. Readers operating in energetic noise regulate also will realize thoughts 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

Example text

6 represents an active noise and vibration control (ANVC) system using both feedforward and feedback compensators. The system has two inputs and two outputs. The first input is the disturbance w(t), which is generated by the unknown disturbance source s(t) passed through a filter with unknown characteristics. The second input is the control signal, u(t). The first output is the measurement of the residual acceleration (force, noise) e(t) (also called the performance variable) and the second output is a signal correlated with the unknown disturbance, y1 (t) in Fig.

3 Discrete-Time System Models for Control The discrete-time models will represent the behaviour of the controlled system from the discrete-time control applied to the system through a D/A converter and a ZOH to the output of the A/D converter which will discretize the measured output. Singleinput single-output time invariant systems will be considered. , t = time , Ts = sampling period), Ts u(t) is the input, y(t) is the output, d is the integer number of sampling periods contained in the time delay of the systems, ai and bi are the parameters (coefficients) of the models.

The transfer function between the disturbance force, u p , and the residual force y(t) is called primary path. In our case (for testing purposes), the primary force is generated by a shaker controlled by a signal given by the computer. The transfer function between the input of the system, u(t), and the residual force is called secondary path. The input of the system being a position and the output a force, the secondary path transfer function has a double differentiator behaviour. The sampling frequency used is f s = 800 Hz.

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Adaptive and Robust Active Vibration Control: Methodology and Tests by Ioan Doré Landau, Tudor-Bogdan Airimițoaie, Abraham Castellanos-Silva, Aurelian Constantinescu

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