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

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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 booklet ways the layout of lively vibration regulate platforms from the point of view of today’s principles of laptop regulate. It formulates many of the layout difficulties encountered within the energetic administration of vibration as keep watch over difficulties and searches for the main applicable instruments to resolve them. The experimental validation of the recommendations proposed on proper assessments benches can be addressed. to advertise the frequent popularity of those concepts, the presentation removes pointless theoretical advancements (which are available in different places) and specializes in algorithms and their use. The options proposed can't be totally understood and creatively exploited with out a transparent figuring out of the elemental techniques and strategies, so those are thought of intensive. the focal point is on improving 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 wide band vibrations.

Adaptive and strong lively Vibration Control will curiosity practicing engineers and aid them to obtain new ideas and methods with strong useful 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 thoughts with a excessive measure of cross-over capability to be used of their field.

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Additional info for Adaptive and Robust Active Vibration Control: Methodology and Tests

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Since one directly estimates a discrete-time model from data, their effect is captured by the estimated model. 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.

2). 6 6 The source is located upstream with respect to the location where the residual force (acceleration) or noise is measured. 1 Active Vibration Control: Why and How 9 In a number of applications of AVC and ANC, an image of the disturbances (a correlated measurement) acting upon the system can be made available. This information is very useful for attenuating the disturbances using a feedforward compensation scheme; however, the feedforward compensator filter will depend not only upon the dynamics of the compensator system (the plant) but also upon the characteristics of the disturbances and of the primary path (the transfer function between the source and the residual acceleration or force).

So the predictor considered in the previous section cannot be used. Therefore, since the objective is to drive the residual error to zero, one can consider as an approximation of y(t) the output of the predictor itself (which is measurable). 2 Structure of the Adjustable Model (a) 43 (b) (c) Fig. 13) is the a posteriori output of the predictor. 14) where θˆ T (t) is the vector of adjustable parameters and ψ T (t) is the observation vector. Since yˆ (t) should converge asymptotically to y(t), yˆ (t) is an approximation of the output y(t) which will improve over time.

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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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