摘要
采用有限元方法对水面舰船的冲击环境进行分析,在建立整船有限元模型的基础上,对药包设定了不同的爆炸距离和爆炸方位等多种工况,分别对舰船遭受单发武器攻击、两发武器同时攻击时的情况进行分析,探讨了结构的响应随着爆距变化的规律,并采用无量纲的方法进行了数据处理,使之能够在更多的水面舰船上应用。研究结果表明,两发武器同时攻击时的船体冲击响应可近似等于单发武器各自攻击时的船体冲击响应的代数和。对于水面舰船抗冲击设计具有一定的借鉴意义,对于水面舰船的生命力评估也具有一定的工程价值。
By employing the finite element method, this paper analyzed the impulse environment of a surface warship, when it was subjected to attacks, and discussed the laws of the impulse response. Based on the finite element model of the warship, a lot of cases of different standoff distances and attack directions were set up to calculate its anti-shock performance. Two different conditions were calculated and analyzed： under single attack and under two simultaneous attacks. The data were treated non-dimensionally,which made it available for other surface ships. The results show that the impulse response of the surface ship under two simultaneous attacks approximately equals the algebraic sum of the impulse responses of the surface ship under two seperate attacks. This paper gives some insights into the design of surface ships for improving anti-shock performance, and it is of engineering value in survivability assessment of surface ships.
出处
《中国舰船研究》
2009年第6期15-20,共6页
Chinese Journal of Ship Research
关键词
舰船
冲击试验
有限元模型
武器攻击
warship
shock test
Finite Element Model
weapon attack
