海冰-结构的动力相互作用、冰激振动及冰载荷的识别问题，仍是目前工程海冰界的核心和热点问题。
Dynamic interactions of sea ice with offshore structures, ice-induced vibrations and ice loads identification, are still the hot and key problems in ice engineering.
冰激振动引起的交变应力，将会使海上石油钢结构发生疲劳与断裂玻坏。
The alternate stress stimulates vibration ice, makes the offshore petroleum steel construction fracture because of the fatigue factor.
这一参数直接反映出冰与结构综合作用条件对系统动力效应的控制水平，为冰激柔性直立桩结构振动问题的研究开辟了一个重要的突破方向。
This parameter directly reflects the interaction level of ice and structure, and creates an important breakthrough direction in the research of ice induced vibration of compliant vertical column.
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