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Volume 18, Issue 35 (5-2022)                   marine-engineering 2022, 18(35): 1-12 | Back to browse issues page

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Norouzi Keshtan M, Raghebi M, Malek Jafarian M. Numerical study of the vibrational behavior hull surface vessel caused by propeller excitation. marine-engineering 2022; 18 (35) :1-12
URL: http://marine-eng.ir/article-1-930-en.html
1- University of Birjand
Abstract:   (1421 Views)
One of the most important issues in the design of a vessel structure is the vibrations of the structure and its effect on the comfort of the crew and the life of the equipment. The most important factor about the comfort of the crew in a vessel is the range of free and forced vibrations under various internal and external factors in the structure of the vessel. One of the serious factors in stimulation of vibrations in the hull vessel is the propeller. Excessive vibrations as well as the being the structure in the frequency range of propeller excitation, cause fatigue, components exhaustion, and also the resonance phenomenon. Resonance and vibration of the components are the structural design challenges, so in this paper, vibrations caused by a five-bladed propeller KP505 excitation were investigated using numerical simulation on a container vessel (KCS). First, the free vibrations of the hull vessel in wet mode were investigated. Then, to investigate the forced vibrations caused by the propeller excitation, the pressure distribution on the hull in self-propulsion mode was obtained from the numerical solution of the fluid flow by computational fluid dynamics. To validate the results, the natural frequencies obtained in free vibrations were compared with empirical formulas. Comparing the values of the first, second and, third bending frequencies with the empirical values, showed that the analysis error was 5.5, 26, and 26.6, respectively, which explain the accuracy of the analysis. Comparing the results of forced vibrations with the standard allowable range, it was shown that the vibrations are within the allowable range. Also, the structure has not being within the range of the excitation frequency of the propeller. As a result, the resonance phenomenon has not occurred.
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Type of Study: Research Paper | Subject: Ship Structure
Received: 2021/09/25 | Accepted: 2021/12/4

References
1. Biot, M., De Lorenzo, F., (2009), Criteria for designing noise and vibration comfort of passengers on board of ships, in: 21st Congreso Panamericano de Ingenieria Naval.
2. Shipping, A.B.O., (2015), Guidance notes on ship vibration, American Bureau of Shipping.
3. Kinns, R., Bloor, C., (2004), Hull vibration excitation due to monopole and dipole propeller sources, Journal of sound and vibration, Vol.270 (4-5), P.951-980. [DOI:10.1016/S0022-460X(03)00641-2]
4. Lee, S.-K., Liao, M., Wang, S., (2006), Propeller-induced hull vibration-analytical methods, in: Proceedings of the second international ship noise and vibration conference. London, UK, June, Citeseer.
5. Dylejko, P.G., Kessissoglou, N.J., Tso, Y., Norwood, C.J., (2007), Optimisation of a resonance changer to minimise the vibration transmission in marine vessels, Journal of sound and vibration, Vol.300(1-2), P.101-116. [DOI:10.1016/j.jsv.2006.07.039]
6. Feng, G.P., (2010), Study on the Stern Vibration Transmission Based on Power Flow Analysis Shanghai Jiao Tong Shanghai, China.
7. Merz, S., Kessissoglou, N., Kinns, R., Marburg, S., (2010), Minimisation of the sound power radiated by a submarine through optimisation of its resonance changer, Journal of Sound and Vibration, Vol.329(8), P. 980-993. [DOI:10.1016/j.jsv.2009.10.019]
8. Qu, Y., Chen, Y., Long, X., Hua, H., Meng, G.,(2013), A modified variational approach for vibration analysis of ring-stiffened conical-cylindrical shell combinations, European Journal of Mechanics-A/Solids, Vol.37, P. 200-215. [DOI:10.1016/j.euromechsol.2012.06.006]
9. Qu, Y., Wu, S., Chen, Y., Hua, H., (2013), Vibration analysis of ring-stiffened conical-cylindrical-spherical shells based on a modified variational approach, International Journal of Mechanical Sciences, Vol.69, P.72-84. [DOI:10.1016/j.ijmecsci.2013.01.026]
10. Song, Y., Wen, J., Yu, D., Liu, Y., Wen, X., (2014), Reduction of vibration and noise radiation of an underwater vehicle due to propeller forces using periodically layered isolators, Journal of Sound and vibration, Vol.333(14), P.3031-3043. [DOI:10.1016/j.jsv.2014.02.002]
11. Qu, Y., Hua, H., Meng, G., (2015), Vibro-acoustic analysis of coupled spherical-cylindrical-spherical shells stiffened by ring and stringer reinforcements, Journal of Sound and Vibration, Vol.355, P.345-359. [DOI:10.1016/j.jsv.2015.06.034]
12. Qu, Y., Su, J., Hua, H., Meng, G., (2017), Structural vibration and acoustic radiation of coupled propeller-shafting and submarine hull system due to propeller forces, Journal of Sound and Vibration, Vol.401, P.76-93. [DOI:10.1016/j.jsv.2017.03.034]
13. G.L. (GL), (2011), Structural Rules for Container Ships, in, Hamburg.
14. Kim, Jin., (2021), Experimental Data for KCS Resistance, Sinkage, Trim, and Self-propulsion, in, Numerical Ship Hydrodynamics (Springer). [DOI:10.1007/978-3-030-47572-7_3]
15. Yin, Y., Zhao, D., Cui, H., Hong, M., (2014), Predicting method of natural frequency for ship's overall vertical vibration, Brodogradnja: Teorija i praksa brodogradnje i pomorske tehnike, Vol.65(3), P.49-58.

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International Journal of Maritime Technology is licensed under a

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