CAJ | 학술논문

针对水下高速航行时鱼雷的主要自噪声源——螺旋桨噪声,分析了其通过散射传播形成的自噪声,以水下声散射理论为依据,在忽略雷长情况下建立了简化的自噪声场物理模型,计算了自噪声平均强度级,分析了鱼雷辐射噪声级(螺旋桨噪声形成的辐射噪声)、声吸收系数、散射系数、航深等参数对自噪声的影响.仿真结果表明,变化规律与经验数据吻合,证明了该模型的正确性和有效性.
침대수하고속항행시어뢰적주요자조성원——라선장조성,분석료기통과산사전파형성적자조성,이수하성산사이론위의거,재홀략뢰장정황하건립료간화적자조성장물리모형,계산료자조성평균강도급,분석료어뢰복사조성급(라선장조성형성적복사조성)、성흡수계수、산사계수、항심등삼수대자조성적영향.방진결과표명,변화규률여경험수거문합,증명료해모형적정학성화유효성.
Propeller noise forms the main self-noise source of a torpedo running at high speed under water by scattering propagation. According to the underwater acoustic scattering theory, a simplified self-noise field physical model is con-structed by ignoring torpedo length to calculate the average intensity level of self-noise and analyze the influences of the parameters, such as the radiated noise level from torpedo propeller, the sound absorption coefficient, the scattering coefficient, and the running depth, on the self-noise. Simulation results coincide with the empirical data, indicating the validity and effectiveness of this model.