船海工程
船海工程
선해공정
SHIP & OCEAN ENGINEERING
2015年
4期
21-24
,共4页
李耀飞%李威%李骏%魏克难%尤小健
李耀飛%李威%李駿%魏剋難%尤小健
리요비%리위%리준%위극난%우소건
声散射%目标强度%有限元%边界元
聲散射%目標彊度%有限元%邊界元
성산사%목표강도%유한원%변계원
acoustic scattering%target strength%finite element method%boundary element method
基于声学有限元理论,结合自动匹配吸收边界层技术,计算水下复合材料舵的声目标强度。结果表明,当声波频率较低时,复合材料舵的吸声效果并不明显,但随着频率的增高,复合材料舵的声目标强度特性明显得到改善。
基于聲學有限元理論,結閤自動匹配吸收邊界層技術,計算水下複閤材料舵的聲目標彊度。結果錶明,噹聲波頻率較低時,複閤材料舵的吸聲效果併不明顯,但隨著頻率的增高,複閤材料舵的聲目標彊度特性明顯得到改善。
기우성학유한원이론,결합자동필배흡수변계층기술,계산수하복합재료타적성목표강도。결과표명,당성파빈솔교저시,복합재료타적흡성효과병불명현,단수착빈솔적증고,복합재료타적성목표강도특성명현득도개선。
Based on the acoustic finite element theory, AML technique is adopted to investigate the acoustic target strength of underwater rudder with composite material, the numerical results indicate that when the frequency of sound wave is not high, the underwater rudder's target strength is not very well, which has an obvious improvement when the frequency become high e-nough.