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CLC number: U615.35

On-line Access: 2007-12-14

Received: 2007-06-12

Revision Accepted: 2007-08-05

Crosschecked: 0000-00-00

Cited: 7

Clicked: 3541

Citations:  Bibtex RefMan EndNote GB/T7714

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Journal of Zhejiang University SCIENCE A 2008 Vol.9 No.1 P.26~31

http://doi.org/10.1631/jzus.A071308


Dynamic response analysis of a moored crane-ship with a flexible boom


Author(s):  Hui-li REN, Xue-lin WANG, Yu-jin HU, Cheng-gang LI

Affiliation(s):  School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China

Corresponding email(s):   renhust@sina.com, w_steven@sina.com

Key Words:  Dynamic response, Moored crane-ship, Finite element method, Rigid-flexible coupling dynamic model


Hui-li REN, Xue-lin WANG, Yu-jin HU, Cheng-gang LI. Dynamic response analysis of a moored crane-ship with a flexible boom[J]. Journal of Zhejiang University Science A, 2008, 9(1): 26~31.

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year="2008",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A071308"
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%A Hui-li REN
%A Xue-lin WANG
%A Yu-jin HU
%A Cheng-gang LI
%J Journal of Zhejiang University SCIENCE A
%V 9
%N 1
%P 26~31
%@ 1673-565X
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%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A071308

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T1 - Dynamic response analysis of a moored crane-ship with a flexible boom
A1 - Hui-li REN
A1 - Xue-lin WANG
A1 - Yu-jin HU
A1 - Cheng-gang LI
J0 - Journal of Zhejiang University Science A
VL - 9
IS - 1
SP - 26
EP - 31
%@ 1673-565X
Y1 - 2008
PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.A071308


Abstract: 
The dynamic response of moored crane-ship is studied. Governing equations for the dynamic response of a crane-ship coupled with the pendulum motion of the payload are derived based on Lagrange’s equations. The boom is modeled based on finite element method, while the payload is modeled as a planar pendulum of point mass. The dynamic response was studied using numerical method. The calculation results show that the large-amplitude responses occur at wave periods near the natural period of the payload. Load swing angle is smaller for crane-ship with flexible boom, in comparison with rigid boom. The ship surge motions have large vibrations for crane-ship with flexible boom, which were not observed for a rigid boom. The analysis identifies the significance of key parameters and reveals how the system design can be adjusted to avoid critical conditions.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

Reference

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[3] Chin, C., Nayfeh, A.H., Abdel-Rahman, E., 2001. Nonlinear dynamics of a boom crane. Journal of Vibration and Control, 7(2):199-220.

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[6] Ellermann, K., Kreuzer, E., Markiewicz, M., 2002. Nonlinear dynamic of floating cranes. Nonlinear Dynamics, 27(2):107-183.

[7] Henry, R.J., Masoud, Z.N., Nayfeh, A.H., Mook, D.T., 2001. Cargo pendulation reduction on ship-mounted cranes via boom-luff angle actuation. Journal of Vibration and Control, 7(8):1253-1264.

[8] Ju, F., Choo, Y.S., Cui, F.S., 2006. Dynamic response of tower crane induced by the pendulum motion of the payload. International Journal of Solids and Structures, 43(2):376-389.

[9] Kral, R., Kreuzer, E., Wilmers, C., 1996. Nonlinear oscillations of a crane ship. ZAMM, 76:5-8.

[10] Masoud, Z.N., Nayfeh, A.H., Mook, D.T., 2004. Cargo pendulation reduction of ship-mounted cranes. Nonlinear Dynamics, 35(3):299-311.

[11] Todd, M.D., Vohra, S.T., Leban, F., 1997. Dynamical Measurements of Ship Crane Load Pendulation. Oceans 97 MTS/IEEE Conference Proceedings, 2:1230-1236.

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