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 ebook ways the layout of energetic vibration regulate structures from the viewpoint of today’s principles of computing device keep an eye on. It formulates a few of the layout difficulties encountered within the energetic administration of vibration as keep watch over difficulties and searches for the main applicable instruments to unravel them. The experimental validation of the strategies proposed on proper assessments benches is additionally addressed. to advertise the common reputation of those recommendations, the presentation gets rid of pointless theoretical advancements (which are available somewhere else) and makes a speciality of algorithms and their use. The recommendations proposed can't be totally understood and creatively exploited and not using a transparent realizing of the elemental thoughts and techniques, so those are thought of intensive. the point of interest is on bettering motivations, set of rules presentation and experimental evaluate. 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 large band vibrations.

Adaptive and strong energetic Vibration Control will curiosity working towards engineers and support them to procure new ideas and methods with reliable 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 detect suggestions with a excessive measure of cross-over capability to be used of their field.

Show description

Read Online or Download Adaptive and Robust Active Vibration Control: Methodology and Tests PDF

Best ventilation & air conditioning books

Geologie für Bauingenieure: Eine Einführung

Geologische Prozesse und Erscheinungsformen, die f? r den T? tigkeitsbereich eines Bauingenieurs wichtig werden ok? nnen, werden anhand von Einzelbeispielen aus der Praxis vorgestellt und erl? utert. Eine aktualisierte Liste weiterf? hrender Literatur und eine Aufstellung von Institutionen, die geologische Untersuchungen und Beratungen durchf?

Dictionary of Building and Civil Engineering: English, German, French, Dutch, Russian

Within the previous couple of a long time civil engineering has gone through immense technological swap which has, evidently, been refleded within the terminology hired within the undefined. Efforts at the moment are being made in lots of nations to lead to a systematization and unification of technical terminology as a rule, and tbat of civil engineering specifically.

Simple solutions to energy calculations

Thoroughly revised and up-to-date, this 5th version of a bestseller is helping construction managers determine what to seem for and the way to judge ahead of you decide approximately which warrantly is best for his or her construction and which ESCO can top bring strength mark downs. This reference will shop numerous hours doing strength feasibility reviews and linked calculations.

2014 ASHRAE Handbook -- Refrigeration (SI) (Ashrae Handbook Refrigeration Si (Systems-International)

The 2014 ASHRAE Handbook€”Refrigeration covers the refrigeration gear and platforms for functions except human convenience. This quantity comprises info and suggestions on cooling, freezing, and storing nutrition; business and scientific functions of refrigeration; and low-temperature refrigeration; and encompasses a dual-unit CD.

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

Sample text

Its components are the different parameters that should be estimated. The recursive parameter adaptation algorithms have the following structure: New estimated parameter vector = previous estimated parameter vector + correcting term. D. 1007/978-3-319-41450-8_4 39 40 4 Parameter Adaptation Algorithms Fig. 1 Parameter estimation principle The correcting term has in general the structure of a product: Adaptation gain × Measurement function × Prediction error function. The resulting structure is ⎡ ⎣ ⎤ ⎤ ⎡ Pr evious estimated N ew estimated ⎦+ ⎦ ⎣ parameter s parameter s = (vector ) (vector ) ⎤ ⎤ ⎡ ⎤ ⎡ ⎡ Pr ediction err or Measur ement Adaptation ⎦ ⎦ × ⎣ f unction ⎦ × ⎣ f unction gain +⎣ (scalar ) (vector ) (matri x) This structure corresponds to the so-called integral type adaptation algorithms (the algorithm has memory and therefore maintains the estimated value of the parameters when the correcting terms become null).

This correlation is a result of the physical characteristics of the system. As shown in Fig. 6, the path that transmits the filtered disturbance, w(t), to the residual acceleration is called the primary path. The control signal, on the other hand, is transmitted to the residual acceleration through the secondary path. The residual acceleration (the performance variable) is formed by addition between the output of the primary path, denoted x(t), and the output of the secondary path, denoted z(t).

The situations where this is not possible constitute feedback control problems, while the others are more generally referred in the literature as hybrid control. A standard feedback representation in the form of a 2-inputs–2-outputs system as shown in Fig. 7 can also be considered. This representation is very well known in robust and optimal control (see also [11]). 2) where D, G, and M correspond to the models of the primary, secondary, and reverse paths. 1). 3 Active Damping As indicated previously, active damping concerns augmentation of the damping of some vibration modes characterizing a mechanical structure (the frequencies of these modes are not changed).

Download PDF sample

Rated 4.83 of 5 – based on 10 votes