因此，它是一种研究焊接结构疲劳损伤过程的新途径。
So, it is the new method of researching welded structure fatigue damage process.
计算结果表明，非线性波浪载荷对船体结构疲劳损伤分析具有重要影响。
Calculation results show that nonlinear factors are important for fatigue strength analysis of ship structures.
本文的主要目的是研究非线性波浪载荷作用下多种应力成份组合的船体结构疲劳损伤计算。
The major purpose of this thesis is to do some research work on calculation of fatigue damage of ship hull structures with combined bending stress under nonlinear wave loads.
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