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.
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.
最后,根据锯齿型冰力模型得出自激振动与连续挤压破坏发生的转变速率。
Then transition velocity of self-excited vibration and continuous crushing is got bu the model of saw-tooth force function.
冰内部的微裂纹行为是解释与描述冰致自激振动的关键要素。
The micro crack behavior in ice is the key factor for describing and explaining ice-induced self-excited vibration.
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.
用自激振动理论说明由冰引起的结构振动现象已得到越来越多的现场测试和模型实验的印证。
There is increasing evidence of the self-excited mechanism in ice-induced structural vibration both from the field measurements and laboratory tests.
基于现场原型结构测量,研究了冰与锥体结构相互作用的动冰力与冰激锥体结构振动,建立了确定性冰力函数。
A deterministic ice force function of the conical structure is proposed in the paper It is based on the full?
分析表明,冰致平台自激振动发生在冰的韧脆转变的冰速范围内。
Previous studies have demonstrated that self-excited vibration occurred during the ice speed at which ice fails in ductile-to-brittle transition (DBT) range.
分析表明,冰致平台自激振动发生在冰的韧脆转变的冰速范围内。
Previous studies have demonstrated that self-excited vibration occurred during the ice speed at which ice fails in ductile-to-brittle transition (DBT) range.
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