为了研究裂纹位置与舰船结构之间的影响规律,应用有限元分析软件对舰船典型结构进行仿真计算,以应力响应为特征参数,得到相应结构在受到单向拉应力时的应力分布情况。通过对不同裂纹位置的应力响应情况进行对比分析,总结出裂纹与应力之间的规律。结果表明,应力响应作为损伤识别特征参数具有实际意义,在参数一致的情况下,边裂纹对结构的应力分布具有更强的影响,船体结构的应力分布情况随着裂纹的位置变化而改变,可为智能化舰船中的裂纹损伤识别提供技术支持。
In order to study the law of the influence between the crack position and the ship structure, finite element analysis software is used to simulate the typical structure of the warship, and the stress response is the characteristic parameter to obtain the distribution of the stresses in the corresponding structure under uniaxial tensile stress. By comparing the stress response of different crack positions, the law of crack and stress is summed up. The results show that the stress response has practical significance as the characteristic parameter of the damage identification. Under the condition of the same parameter, the edge crack has stronger influence on the stress distribution of the structure, and the stress distribution of the hull structure changes with the position of the crack, which can provide technical support for the identification of the crack damage in the intelligent ship.
2019,41(11): 42-45 收稿日期:2018-05-28
DOI:10.3404/j.issn.1672-7649.2019.11.008
分类号:U661
作者简介:王健(1994-),男、硕士研究生。主要研究方向为船舶与海洋结构物设计制造
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