摘要
由于水下爆炸和舰船结构动态响应的复杂性,水下非接触爆炸作用下舰船结构损伤研究主要来自于对试验现象或试验数据的分析。传统对水下爆炸作用下舰船结构损伤研究的理论分析和计算过程主要考虑水下爆炸冲击波和2次压力波。本文提出了气泡脉动对舰船结构的冲击,明确了气泡脉动对舰船结构损伤的关系;在综合研究水下非接触爆炸作用下舰船结构损伤模型基础上,建立了舰船结构的损伤等级,确定了等级评估标准;举例与模拟试验情况下舰船结构损伤情况进行对比,结果基本吻合。
Due to the complexity of underwater explosions and ship structure dynamic response,the research of ship structure damage mostly came from experiment phenomenon or the analysis of experiment data when ship was subjected underwater non-contact explosions.Underwater shock wave and second pressure wave were mostly considered on the theory analysis and calculation of tradition ship structure damage research.The paper discovers that gas bubble-pulse impacts to ship structure,and make clear and definite the connection between gas bubble-pulse and ship structure damage,then base on the model of ship structure damage in underwater non-contact explosions,builds damaged grade of ship structure and makes sure the assessment standard of damaged grade.At last,take example and compare the result of assessment and the result of computer simulation when ship was subjected to underwater non-contact explosions,then the result is basically unanimous.
出处
《舰船科学技术》
北大核心
2012年第7期40-44,共5页
Ship Science and Technology
关键词
非接触爆炸
冲击波
舰船结构
损伤等级
non-contact explosion
shock wave
ship structure
damaged grade
