Temat: damped vibration - 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

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Skocz do pozycji: 2.

Tytuł:: The effect of damping coefficients on the torsional vibration of the damped multi-branch gears system
Autorzy:: Firouzi, J.
Ghassemi, H.
Vakilabadi, K. A.
Khalilnezhad, H.
Powiązania:: https://bibliotekanauki.pl/articles/122927.pdf
Data publikacji:: 2017
Wydawca:: Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
Tematy:: torsional vibration
gear branch system
damped system
undamped system
drgania skrętne
współczynnik tłumienia
system tłumienia
Opis:: The effect of the damping coefficients has been considered to estimate the torsional vibration of the multi-branch gears systems. In this paper, the effect of the viscous damping between the gears and the fluid in which the gear is working and the effect of the structural damping of the shafts in a three-branched gear system is investigated. Initially, the governing equations were derived and then the damping effects were studied using MATLAB code. In order to validate the results which prepared by MATLAB code are compared with the other computational methods. To investigate the effects of the stiffness and damping on the shafts and gears, different gear branch systems are considered. Some of the vibration results on the damped gear branched systems with viscous damper and structural damper are analyzed and discussed.
Źródło:: Journal of Applied Mathematics and Computational Mechanics; 2017, 16, 4; 5-16
2299-9965
Pojawia się w:: Journal of Applied Mathematics and Computational Mechanics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Damped vibration of the system of changing the crane boom radius
Autorzy:: Sochacki, W.
Bold, M.
Powiązania:: https://bibliotekanauki.pl/articles/122516.pdf
Data publikacji:: 2015
Wydawca:: Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
Tematy:: truck crane
damped vibration
eigenvalues
Opis:: This study formulates and solves the problem of transverse damped vibration in the system of changing the boom radius in a truck crane with advanced cylinder design for controlling the boom radius. The dissipation of vibration energy in the model adopted in the study occurs as a result of internal damping of the viscoelastic material (rheological Kelvin-Voigt model) of the beams that model the system and movement resistance in the supports of the cylinder and crane boom to the bodywork frame of the crane. Damped frequencies of vibrations and degree of vibration amplitude decay were calculated. The study also presents eigenvalues of system vibration with respect to changes in damping coefficients and system geometry for a selected load.
Źródło:: Journal of Applied Mathematics and Computational Mechanics; 2015, 14, 2; 111-122
2299-9965
Pojawia się w:: Journal of Applied Mathematics and Computational Mechanics
Dostawca treści:: Biblioteka Nauki

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