| Dynamics of Sea Ice and Spectrum of Ice Force |
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| 作者单位： | Shi Qingzeng and Chen Xing Professor，Dept. of Ocean Eng. and Naval Arch，Tianjin Univ.，Tianjin Lecturer，Dept. of Ocean Eng. and Naval Arch.，Tianjin Univ.，Tianjin |
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| 摘 要： | Spectrum and self-excite characters are the two significant characters of the dynamics of sea ice. The spectrum character of sea ice is mainly shown by the spectrum of ice force. The spectrum character of the sea ice is its intrinsic attributes. When the spectrum of ice force from the dynamic response of ice and structure interaction are evaluated, the effect of dynamic character of the structure must be eliminated. In this paper, the ice force spectrum at Bohai Bay and Liaodong Bay is evaluated from the displacement and strain responses of a single degree and a multi-degree freedom structure. The evaluated ice force spectrum can be used to define the spectrum character of ice in the analysis of ice induced vibration.
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Dynamics of Sea Ice and Spectrum of Ice Force |
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| Shi Qingzeng and Chen Xing Professor,Dept. of Ocean Eng. and Naval Arch,Tianjin Univ.,Tianjin Lecturer,Dept. of Ocean Eng. and Naval Arch.,Tianjin Univ.,Tianjin. Dynamics of Sea Ice and Spectrum of Ice Force[J]. China Ocean Engineering, 1995, 0(2) |
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| Authors: | Shi Qingzeng Chen Xing Professor Dept. of Ocean Eng. Naval Arch Tianjin Univ. Tianjin Lecturer Dept. of Ocean Eng. Naval Arch. Tianjin Univ. Tianjin |
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| Abstract: | Spectrum and self-excite characters are the two significant characters of the dynamics of sea ice. The spectrum character of sea ice is mainly shown by the spectrum of ice force. The spectrum character of the sea ice is its intrinsic attributes. When the spectrum of ice force from the dynamic response of ice and structure interaction are evaluated, the effect of dynamic character of the structure must be eliminated. In this paper, the ice force spectrum at Bohai Bay and Liaodong Bay is evaluated from the displacement and strain responses of a single degree and a multi-degree freedom structure. The evaluated ice force spectrum can be used to define the spectrum character of ice in the analysis of ice induced vibration. |
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| Keywords: | dynamic ice force ice force spectrum frequency domain single degree of freedom multi-degree of freedom |
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