Autor: Sochacki, M. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Transverse and longitudinal damped vibrations of hydraulic cylinder in a mining prop
Autorzy:: Sochacki, W.
Bold, M.
Powiązania:: https://bibliotekanauki.pl/articles/128288.pdf
Data publikacji:: 2016
Wydawca:: Politechnika Poznańska. Instytut Mechaniki Stosowanej
Tematy:: damped vibration
hydraulic cylinder
transverse vibration
longitudinal vibration
drgania tłumione
siłownik hydrauliczny
drgania poprzeczne
drgania wzdłużne
Opis:: This study presents the influence of different kinds of damping on transverse and longitudinal vibrations of hydraulic cylinder in a mining prop. The dissipation of vibration energy in the model is caused by simultaneous internal damping of viscoelastic material of beams that model the system, external viscous damping and constructional damping. Constructional damping (modelled by the rotational viscous dampers) occurs as a result of movement resistance in the cylinder supports. The eigenvalues of the system with respect to changes in system geometry with two values of load and for a selected and variable damping coefficient values were calculated.
Źródło:: Vibrations in Physical Systems; 2016, 27; 317-324
0860-6897
Pojawia się w:: Vibrations in Physical Systems
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Damped vibration of a non-prismatic beam with a rotational spring
Autorzy:: Sochacki, W.
Bold, M.
Powiązania:: https://bibliotekanauki.pl/articles/128035.pdf
Data publikacji:: 2014
Wydawca:: Politechnika Poznańska. Instytut Mechaniki Stosowanej
Tematy:: vibration damping
non-prismatic beam
rotational spring
tłumienie drgań
belka niepryzmatyczna
sprężyna rotacyjna
Opis:: In this paper a problem pertaining to the damped lateral vibrations of a beam with different boundary conditions and with a rotational spring is formulated and solved. In the adopted model the vibration energy dissipation derives from the internal damping of the viscoelastic material (Kelvin–Voigt rheological model) of the beam and from the resistance motion in the supports. The rotational spring can be mounted at any chosen position along the beam length. The influence of step changes in the cross-section of the beam on its damped lateral vibrations is also investigated in the paper. The damped vibration frequency and the vibration amplitude decay level are calculated. Changes in the eigenvalues of the beam vibrations along with the changes in the damping ratio and the change in the model geometry observed on it are also presented. The considered beam was treated as Euler- Bernoulli beam.
Źródło:: Vibrations in Physical Systems; 2014, 26; 251-256
0860-6897
Pojawia się w:: Vibrations in Physical Systems
Dostawca treści:: Biblioteka Nauki

Artykuł

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