Influence analysis of welding thermal effect on hull dynamic performance

CHEN Zhang-lan; YE Jia-wei

doi:10.16411/j.cnki.issn1006-7736.2013.02.025

Journal of Dalian Maritime University >

2013 , Vol. 39 >Issue 2: 53 - 56

DOI: https://doi.org/10.16411/j.cnki.issn1006-7736.2013.02.025

Original Paper

Influence analysis of welding thermal effect on hull dynamic performance

CHEN Zhang-lan ,
YE Jia-wei

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1. Facility of Marine Engineering, Jimei University, Xiamen 361021,China;2. School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510640, China

Received date: 2012-11-06

Online published: 2023-05-26

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Abstract

The influence of welding thermal effect on dynamical performance of ship structure is analyzed by FEM method and verified by typical example. Based on the formula of stress and strain, the stiffness matrix and the formula for modal analysis including welding thermal effect are developed by applying the principle of visual work. The developed equation testifies that welding thermal effect accounts for the dynamical performance of structure theoretically. Taking 686 TEU container vessel as typical example, its vibration modes with the presence of welding thermal effect or not are extracted and inhibited. The frequencies comparison of same-node and first order shows that natural frequencies would be changed with the welding thermal effect. Research result indicates that thermal effects influence on the behavior of vibration and could not be ignored if accuracy of vibration control of hull structure is deemed necessary.

Key words： ship; welding thermal effect; dynamic performance; FEM method

Cite this article

CHEN Zhang-lan , YE Jia-wei . Influence analysis of welding thermal effect on hull dynamic performance[J]. Journal of Dalian Maritime University, 2013 , 39(2) : 53 -56 . DOI: 10.16411/j.cnki.issn1006-7736.2013.02.025

References

［1］ADIL Y, ALAEDDIN A. Analysis of free and forced ship vibrations using finite element method［C］// ASME 2010 10th Biennial Conference. Brisbane:［s.n.］, 2010:147-156.

［2］龚君来. 某艇船体结构总振动测量及动力性能评估［J］.舰船科学技术,2008,30(3):60-63. GONG Jun-lai. A certain ship’s global vibration test trial and dynamical capability evaluation［J］. Ship Science and Technology, 2008,30(3):60-63.(in Chinese) ［3］HERSZBERG I, WITTINGHAM B, LI H C H. Vibrationbased SHM system for composite ship structures employing randon decrement signatures［C］// International SAMPE Syposium and Exhibition. Melbourne:［s.n.］,2007:10-16.

［4］程玉鑫, 周力, 洪明, 等. 舱内液体附加质量对船体振动影响的模型实验研究［J］. 中国舰船研究, 2008, 3(2):64-67. CHENG Yu-xin, ZHOU Li, HONG Ming, et al. Ship model experimental study on the effect of added masses caused by inner liquid on hull’s vibration［J］. Chinese Journal of Ship Research, 2008, 3(2):64-67.(in Chinese)

［5］李庆松, 姚辉. 柴油机推进船舶振动计算及评估研究［J］. 柴油机, 2011, 33(4):54-57. LI Qing-song, YAO Hui. Calculation and assessment on vibration of the ship with diesel propulsion［J］.Diesel Engine, 2011, 33(4):54-57.(in Chinese)

［6］CHEN Zhang-lan, XIONG Yun-feng. Research on approach of welding deformation prediction for complex structure［J］. Journal of Engineering and Technology, 2012,1(1):127-134.

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