0
Polar and Arctic Engineering

A Dynamic Model for Ice-Induced Vibration of Structures

[+] Author and Article Information
Guojun Huang

Department of Engineering Science, Institute of Mechanics, Chinese Academy of Sciences, 15 Bei Si Huan Xi Road, Beijing 100080, Chinaghuang@imech.ac.cnInstitute for Ocean Technology, National Research Council Canada, 1 Kerwin Place, P.O. Box 12093, St. John's, NL, A1B 3T5, Canadaghuang@imech.ac.cn

Pengfei Liu

Department of Engineering Science, Institute of Mechanics, Chinese Academy of Sciences, 15 Bei Si Huan Xi Road, Beijing 100080, Chinapengfei.liu@nrc-cnrc.gc.caInstitute for Ocean Technology, National Research Council Canada, 1 Kerwin Place, P.O. Box 12093, St. John's, NL, A1B 3T5, Canadapengfei.liu@nrc-cnrc.gc.ca

J. Offshore Mech. Arct. Eng 131(1), 011501 (Dec 11, 2008) (6 pages) doi:10.1115/1.2979795 History: Received April 22, 2006; Revised June 08, 2008; Published December 11, 2008

A dynamic model for the ice-induced vibration (IIV) of structures is developed in the present study. Ice properties have been taken into account, such as the discrete failure, the dependence of the crushing strength on the ice velocity, and the randomness of ice failure. The most important prediction of the model is to capture the resonant frequency lock-in, which is analog to that in the vortex-induced vibration. Based on the model, the mechanism of resonant IIV is discussed. It is found that the dependence of the ice crushing strength on the ice velocity plays an important role in the resonant frequency lock-in of IIV. In addition, an intermittent stochastic resonant vibration is simulated from the model. These predictions are supported by the laboratory and field observations reported. The present model is more productive than the previous models of IIV.

FIGURES IN THIS ARTICLE
<>
Copyright © 2009 by American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Figure 1

Dynamic model for ice-structure interaction

Grahic Jump Location
Figure 2

Characteristic plot of ice crushing strength versus strain rate

Grahic Jump Location
Figure 3

Dependence of the amplitude of the structural vibration on the ice velocity

Grahic Jump Location
Figure 4

Response and ice force time history plots predicted from the present or Matlock–Sodhi model. The two models give the same prediction: v/vt=2.2, x¯0=0 and x¯̇0=0.

Grahic Jump Location
Figure 5

Response and ice force time history plots predicted from the present model (a) and Matlock–Sodhi model (b). v/vt=2.6, x¯0=−0.5, and x¯̇0=0.

Grahic Jump Location
Figure 6

Lock-in of the ice force frequency to the natural frequency of the structure in the ice velocity region of resonant vibration

Grahic Jump Location
Figure 7

Stochastic structural responses: v/vt=2.5

Grahic Jump Location
Figure 8

Detailed ice force and response time history plots corresponding to two typical phases in Fig. 7

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In