刘健^*

（  石油大学机电工程学院；  ）

摘要： 水利工程学职称论文发表，本论文是关于冰区海洋平台受到冰载荷作用会产生疲劳应力并造成构件的疲劳损伤。提出了一种简化疲劳校核方法-双参数法，对冰力作用下平台的管节点进行疲劳损伤、疲劳寿命的计算。该方法用两个参数描述平台特性和海冰特性对平台疲劳应力的影响，校核方法简单，精度也较高。在冰载荷的作用下平台的动力响应不太严重的情况时，可以采取本文提出的校核方法进行疲劳强度校核。

关键词： 海洋平台 冰激疲劳 简化疲劳校核

Jian LIU ^*

（  College of Mechanical and Electronic Engineering,University of Petroleum；  ）

Abstract： The fatigue stress induced by ice lead to fatigue damage of the platforms. A simplified fatigue assessment method is presented in this paper, which can be used to calculate the fatigue damage and fatigue life of joints of platform. Two parameters are used to reflect the influence of the characteristic of the platform and ice on fatigue stress, and the method is simple, the precision of this method is relatively high. The fatigue design method in this paper can be applied in fatigue assessment on the offshore platforms whose dynamic effect with sea ice is not serious.
Keywords： offshore platform ice-induced fatigue simplified fatigue check

 

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