Temat: tuned vibration absorber - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Implementation of the LQG controller for a wind turbine tower-nacelle model with an mr tuned vibration absorber
Autorzy:: Rosół, M.
Martynowicz, P.
Powiązania:: https://bibliotekanauki.pl/articles/280249.pdf
Data publikacji:: 2016
Wydawca:: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:: wind turbine tower vibration
tuned vibration absorber
MR damper
LQG control
Opis:: Vibration of a wind turbine tower is related to fatigue wear, influencing reliability of the whole structure. The current paper deals with the problem of Linear-Quadratic-Gaussian (LQG) tower vibration control using specially designed and built simulation and laboratory tower-nacelle models with a horizontally aligned, magnetorheological (MR) damper based tuned vibration absorber located at the nacelle. Force excitation applied horizontally to the tower itself, or to the nacelle, is considered. The MR damper LQG control algorithm, including the Kalman state observer and LQR (Linear-Quadratic-Regulator) controller is analysed numerically and implemented on the laboratory ground, in comparison with the system with a deactivated absorber. Simulation and experimental results are presented.
Źródło:: Journal of Theoretical and Applied Mechanics; 2016, 54, 4; 1109-1123
1429-2955
Pojawia się w:: Journal of Theoretical and Applied Mechanics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Study of vibration control using laboratory test rig of wind turbine tower-nacelle system with MR damper based tuned vibration absorber
Autorzy:: Martynowicz, P.
Powiązania:: https://bibliotekanauki.pl/articles/201323.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: wind turbine vibration
tower-nacelle laboratory model
tuned vibration absorber
MR damper
tower vibration control
turbina wiatrowa
wibracje
system tower-nacelle
model laboratoryjny
tłumik drgań
MR
przepustnica
kontrola drgań
Opis:: Wind turbine tower dynamic stress is related to the fatigue wear and reliability of the whole wind turbine structure. This paper deals with the problem of tower vibration control using a specially designed and built laboratory model. The considered wind turbine tower-nacelle model consists of a vertically arranged stiff rod (representing the tower), and a system of steel plates (representing nacelle and turbine assemblies) fixed at its top. The horizontally aligned tuned vibration absorber (TVA) with magnetorheological (MR) damper is located also at the top of the rod (in nacelle system). Force excitation sources applied horizontally to the tower itself and to the nacelle were both considered. The MR damper real-time control algorithms, including ground hook control and its modification, sliding mode control, linear and nonlinear (cubic and square root) damping, and adaptive solutions are compared to the open-loop case with various constant MR damper input current values and system without MR TVA (i.e., MR TVA in “locked” state). Comprehensive experimental analyses and their results are presented.
Źródło:: Bulletin of the Polish Academy of Sciences. Technical Sciences; 2016, 64, 2; 347-359
0239-7528
Pojawia się w:: Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Application of the continuous dynamic absorbers in local and global vibration reduction problems in beams
Autorzy:: Łatas, W.
Powiązania:: https://bibliotekanauki.pl/articles/128152.pdf
Data publikacji:: 2016
Wydawca:: Politechnika Poznańska. Instytut Mechaniki Stosowanej
Tematy:: tuned mass damper
dynamic vibration absorber
continuous absorber
beam vibration
vibration control
tłumik masowy strojony
dynamiczny pochłaniacz drgań
drgania belki
sterowanie drganiami
Opis:: The paper deals with the application of the continuous dynamic absorbers in vibration reduction problems in beams. The Euler-Bernoulli beam of variable cross-section is subjected to the concentrated and distributed harmonic excitation forces. The beam is equipped with a system of the continuous vibration absorbers. The problem of the forced vibration is solved employing the Galerkin’s method and Lagrange’s equations of the second kind. Performing time-Laplace transformation the amplitudes of displacement may be written in the frequency domain, similarly the time-averaged kinetic energy of any part of the beam. The results of some local and global vibration control optimization problems concerning the placement and parameters of the continuous vibration absorbers are presented.
Źródło:: Vibrations in Physical Systems; 2016, 27; 245-254
0860-6897
Pojawia się w:: Vibrations in Physical Systems
Dostawca treści:: Biblioteka Nauki

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