疲劳破坏是船体结构的主要失效模式之一，而点蚀、振动影响下的疲劳损伤问题愈发严重，相关机理尚不明确。通过分别对点蚀、振动影响下的疲劳损伤研究现状进行梳理和综述，可以发现：目前的研究主要集中于腐蚀疲劳和振动疲劳，腐蚀疲劳把点蚀作为电化学腐蚀的结果，振动疲劳直接将振动作为导致结构疲劳失效的载荷形式。因此，本文认为之后的研究重点是针对船体典型结构，把点蚀作为结构损伤形式，把振动作为一种影响因素，进一步明确点蚀、振动对疲劳损伤的影响机理。
Fatigue damage caused by pitting and vibration becomes more and more serious, which is one of the main failure modes of ship structures, while the related mechanism is not clear yet. Through sorting and summarizing the research status of fatigue damage under the influence of pitting corrosion and vibration respectively, it can be found that the current research mainly focuses on corrosion fatigue and vibration fatigue. Corrosion fatigue takes pitting corrosion as the result of electrochemical corrosion, and vibration fatigue directly takes vibration as the load form leading to structural fatigue failure. Therefore, this paper considers that the following research focuses on typical hull structures, taking pitting corrosion as the structural damage form and vibration as an influencing factor, and further clarifying the influence mechanism of pitting corrosion and vibration on fatigue damage.
2022,44(24): 1-5 收稿日期：2021-11-30
DOI：10.3404/j.issn.1672-7649.2022.24.001
分类号：U663.2
基金项目：国家自然科学基金资助项目（52001326；51779261）
作者简介：王金(1990-),男,硕士,工程师,研究方向为船体结构和船舶装置
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