基于鱼雷爆炸损伤评估的目标设计方法

IF 0.5 4区 物理与天体物理 Q4 ASTRONOMY & ASTROPHYSICS
Wensi Liu, Hengdou Tian, SuQiu Cheng
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引用次数: 0

摘要

没有基于鱼雷爆炸损伤评估的目标设计的标准规范。现有的方法目前基于船舶损伤评估。分析了水面舰艇损伤等级划分的依据,明确了损伤评估目标的设计应参考舰船结构的不同断裂、塑性变形等损伤破坏情况,并指出了评估目标设计过程中借鉴现行舰船损伤等级标准存在的问题。本文通过仿真解决了这些问题,结果表明水下爆炸载荷与典型水面舰艇之间存在复杂的耦合关系。鱼雷的爆炸毁伤效率不仅与爆炸载荷对艇体的物理功有关,还与爆炸载荷的作用方式和能量输出结构有关。不同工况下的损伤模式和能量输出结构存在较大差异。根据计算结果预测的相应工况下的损伤模式和能量输出结构,进行水下爆炸靶结构的设计。根据鱼雷爆炸损伤的特点,提出了水下爆炸目标结构的优化设计方法。通过仿真验证了目标设计损伤的等效性。仿真对比表明,基于该方法设计的目标能够有效地评估实际舰艇的鱼雷毁伤情况。给出了实战条件下鱼雷爆炸毁伤目标的设计过程,为鱼雷爆炸毁伤评估目标的设计提供技术支持。该方法还可为鱼雷爆炸损伤试验评估提供仿真预测。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Targeted design method based on torpedo explosiondamage assessment
There is no standard specification for targeted design based on the torpedo explosion damage assessment. Existing methods are currently based on ship damage assessments. We analyze the basis for the classification of damage levels of surface ships, which clarified that the design of the damage assessment target should refer to the damage and failure conditions of the ship structure such as different breaks and plastic deformation, and point out the problems around drawing on the current ship damage rating standards in the process of assessing target design. In this work, these issues are resolved through simulation, and the results show that there is complex coupling between underwater explosion loads and typical surface ships. Torpedo explosion damage efficiency is not only related to the physical work of the explosive load on the hull but also to the mode of action of the load and the energy output structure. The damage mode and energy output structure are quite different under different working conditions. The design of the underwater explosion target structure should be carried out based on the damage mode and energy output structure under the corresponding working conditions predicted by the calculation results. According to the characteristics of torpedo explosion damage, an optimized design method for the underwater explosion target structure is proposed. The equivalence of target design damage is verified through simulation. The simulation comparison shows that the design of the target, based on this method, can effectively evaluate the damage of the actual ship by the torpedo. The design process for the torpedo explosion damage target under actual combat conditions is given to provide technical support to the torpedo explosion damage evaluation target design. This method can also provide simulation prediction for torpedo explosion damage test assessments.
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CiteScore
1.40
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