Temat: active vibration reduction - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Comparison of Formulas Obtained for Analytical and LQ Idea Approaches to Determine the Optimal Actuator Location in Active Multimodal Beam Vibration Reduction
Autorzy:: Żołopa, E.
Brański, A.
Powiązania:: https://bibliotekanauki.pl/articles/177078.pdf
Data publikacji:: 2014
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: beam
actuator
active vibration reduction
LQ problem
system control
control of vibration
Opis:: In this paper an active multimodal beam vibration reduction via one actuator is considered. The optimal actuator distribution is analyzed with two methods: an exact mathematical principles and the LQ problem idea. It turned out that the same mathematical expressions are derived. Thus, these methods are equivalent.
Źródło:: Archives of Acoustics; 2014, 39, 4; 599-603
0137-5075
Pojawia się w:: Archives of Acoustics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Quasi-optimal PZT distribution in active vibration reduction of the triangular plate with P-F-F boundary conditions
Autorzy:: Brański, A.
Szela, S.
Powiązania:: https://bibliotekanauki.pl/articles/229810.pdf
Data publikacji:: 2010
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: triangular plate
PZT (piezoelectric zirconate titanate) actuator
P-F-F (partial-free-free) boundary condition
active vibration reduction
Opis:: An active reduction of transverse vibration of the triangular plate with P-F-F boundary conditions is considered. The cracked plate is idealized research model as partially clamped on one edge with varying clamped length. The active reduction is realised with PZTs. In the paper, assuming the detached base clamped length, the influence of PZTs distribution on the bending moment and the shearing force at the clamped edge is investigated. To realize the purpose two cases are considered. At the former the PZTs are attached at points in which the curvatures of the surface locally take their maximum (MC sub-areas or quasi-optimal ones). At the latter, the PZTs are somewhat shifted. The plate is excited with harmonic plane acoustic wave. The second mode is considered only. The active vibration reduction study with a finite element method (FEM) is carried out. The numerical calculations show that better results are obtained for MC distribution of the PZTs.
Źródło:: Archives of Control Sciences; 2010, 20, 2; 209-226
1230-2384
Pojawia się w:: Archives of Control Sciences
Dostawca treści:: Biblioteka Nauki

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