摘要
本文研究海洋结构在随机应力响应下的疲劳寿命估算方法。本文用宽带累积频次法研究了应力频谱带宽对疲劳损伤的影响,给出了修正系数的计算公式,并与PW Wirsching给出的结果进行的比较。
This paper makes researches on the method for estimating fatigue life of offshore structures under random stress response. The method of wide band cumulative frequency number is used to determine the effect of band width of stress frequency spectra on fatigue damage. The calculation formula for coefficient of correction is listed and compared with the results achieved by P W Wirsching.
出处
《中国海上油气（工程）》
1991年第4期53-58,共6页
China Offshore Oil and Gas
关键词
海洋
石油
结构
疲劳损伤
计算
wide width cumulative frequency number technique, stress frequency spectrum, random load, fatigue damage
