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.

Identyfikatory

DOI

10.17512/jamcm.2017.4.01

• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

torsional vibration; gear branch system; damped system; undamped system

PL

drgania skrętne; współczynnik tłumienia; system tłumienia

• Wydawca: Wydawnictwo Politechniki Częstochowskiej
• Czasopismo: Journal of Applied Mathematics and Computational Mechanics
• Rocznik: 2017
• Tom: Vol. 16, nr 4
• Strony: 5--16
• Opis fizyczny: Bibliogr. 16 poz, rys., tab.

Twórcy

autor

Firouzi J.

• Department of Maritime Engineering, Amirkabir University of Technology Tehran, Iran

autor

Ghassemi H.

• Department of Maritime Engineering, Amirkabir University of Technology Tehran, Iran

autor

Vakilabadi K. A.

• Department of Mechanic Engineering, Imam Khomeini University of Marine Science & Technology, Nowshahr, Iran

autor

Khalilnezhad H.

• Department of Mechanic Engineering, Imam Khomeini University of Marine Science & Technology, Nowshahr, Iran

Bibliografia

• [1] Wilson W.K., Practical Solution of Torsional Vibration Problems, 3rd edition, Vol 1&2, Chapman & Hall, London 1956 and 1963.
• [2] Mohta Brijgopal R., Evaluation of methods for analysis of multi-degree-of-freedom systems with damping, Masters Theses, 5272, 1968.
• [3] Lin T.R., Pan J., O’Shea P.J., Mechefske Ch.K., A study of vibration and vibration control of ship structures, Marine Structures 2009, 22, 730-743.
• [4] Liu Z.S., Chen S.H., Derivatives of eigenvalues for torsional vibration of geared shaft systems, Journal of Vibration and Acoustics 1993, 115, 277-279.
• [5] Brydum L., Jakobsen S.B., Vibration characteristics of two-stroke, low speed diesel engines, MAN B&W Diesel, Copenhagen 1987, 1-16.
• [6] Kushwaha V., Analysis of torsional vibration characteristics for multi-rotor and gear-branched systems using FEM, National Institute of Technology, Rourkela 2012, 4, 39-41.
• [7] Wu J.S., Chen C.H., Torsional vibration analysis of gear-branched systems by finite element method, Journal of Sound and Vibration 2001, 240(1), 159-182.
• [8] Murawski L., Charchalis A., Review simplified method of torsional vibration calculation of marine power transmission system, Marine Structures 2014, 39, 335-349.
• [9] Drew S.J., Stone B.J., Torsional damping measurements for a gearbox, Mechanical Systems and Signal Processing 2005, 19, 1096-1106.
• [10] Drew S.J., Stone B.J., Torsional damping of a back-to-back gearbox rig, Proc. Instn. Mech. Engrs. 2002, 216 Part K, 157-168.
• [11] Zou CH.P., Chen D.Sh., Hua H.X., Torsional vibration analysis of complicated multi-branched shafting systems by MSM, Journal of Vibration and Acoustics 2003, 125, 317-323.
• [12] Ray D., A Study on FEA of Torsional Vibration in Geared Shafts, National Institute of Technology, Rourkela 2010, 2, 25-27.
• [13] Mao Y., Young Y.L., Influence of skew on the added mass and damping characteristics of marine propellers, Ocean Engineering 2016, 121, 437-452.
• [14] Aureli M., Basaran M.E., Porfiri M., Nonlinear finite amplitude vibrations of sharp-edged beams in viscous fluids, Journal of Sound and Vibration 2012, 331, 1624-1654.
• [15] Firouzi J., Ghassemi H., The effect of the shaft diameter and torsional stiffness on the whirling speed of the ship propeller shafting system, Journal of Mechanical Design and Vibration 2017, 5, 37-42.
• [16] Piatkowski J., The visualization of shaft vibration using the algorithm of phase-amplitude data interpolation, Journal of Applied Mathematics and Computational Mechanics 2016, 15(1), 137-148.

Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).