Self-excited oscillations in sea ice and evaluation of the ice forces
- Arctic and Antarctic Research Inst., St. Petersburg (Russian Federation)
The processes of the dynamical interactions of the ice are described. Special attention is given to the self-excited oscillating processes when the ice goes through periodical deformations similar to these which appear in the structures in the sea ice. The range of the self-excited oscillations periods is from 0.1 s to 20 s. The jump-like processes transform themselves into the quasi-harmonical ones up to sound frequency range. For comparison purposes the spectra of the frictional self-excited oscillations in the glaciers are presented. An iceberg interacting with the drifting ice also forms self-excited oscillating system with period of up to 10 s. An example of numerical evaluation of the forces of interaction between a drifting ice island and the sea ice is given.
- OSTI ID:
- 400792
- Report Number(s):
- CONF-9606279-; ISBN 0-7918-1493-9; TRN: IM9650%%198
- Resource Relation:
- Conference: 14. international conference on offshore mechanics arctic engineering (OMAE), Florence (Italy), 16-20 Jun 1996; Other Information: PBD: 1996; Related Information: Is Part Of OMAE 1996 -- Proceedings of the 15. international conference on offshore mechanics and arctic engineering. Volume 4: Arctic/polar technology; Nixon, W.A. [ed.] [Univ. of Iowa, Iowa City, IA (United States). Iowa Inst. of Hydraulic Research]; Sodhi, D.S. [ed.] [Army Cold Regions Research and Engineering Lab., Hanover, NH (United States)]; Kennedy, K.P. [ed.] [Canmar/Amoco Canada, Calgary, Alberta (Canada)]; Yamaguchi, H. [ed.] [Univ. of Tokyo (Japan)]; Bugno, W. [ed.] [Chevron, San Ramon, CA (United States)]; PB: 130 p.
- Country of Publication:
- United States
- Language:
- English
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