CAJ | 학술논문

外形轮廓和结构参数是决定声呐导流罩航行阻力与水声性能的主要因素，导流罩突出于船体的底部或首部，可以明显降低水流对声呐探测性能的影响，但其在一定程度上增大了航行阻力。本文通过数值方法研究导流罩的最大水面线长宽比和最大纵剖面宽高比等关键结构参数对某I型船航行阻力的影响。结果表明，声呐导流罩的长宽比为3.4~3.6及宽高比为1.1~1.2时，船航行时所受的阻力明显比加装其他比例的导流罩小，且其排水体积相对整个船的排水体积也较小，综合性能最佳。数值结果与相关的实验数据吻合较好。
외형륜곽화결구삼수시결정성눌도류조항행조력여수성성능적주요인소，도류조돌출우선체적저부혹수부，가이명현강저수류대성눌탐측성능적영향，단기재일정정도상증대료항행조력。본문통과수치방법연구도류조적최대수면선장관비화최대종부면관고비등관건결구삼수대모I형선항행조력적영향。결과표명，성눌도류조적장관비위3.4~3.6급관고비위1.1~1.2시，선항행시소수적조력명현비가장기타비례적도류조소，차기배수체적상대정개선적배수체적야교소，종합성능최가。수치결과여상관적실험수거문합교호。
Sailing resistance and underwater acoustic performance are decided by the profile and structure parameters of sonar dome. Owing to protruding from the hull bottom or the head of a ship, sonar dome can significantly reduce influence of water flow on detecting objective performance of sonar, while at the same time it increase sailing resistance to some extent. In the present thesis, effects of some key structure parameters, such as length-width ratio of the maximum water surface line of a sonar dome and width-height ratio of the maximum longitudinal section, on sailing resistance of certain I ship was numerically researched. The numerical results show that sailing resistance of the ship installed with the sonar dome whose length-width ratio is about 3 . 4 ~3 . 6 and width-height ratio is about 1 . 1 ~1 . 2 is significantly smaller than installed with other sonar dome. Moreover, the drainage volume of the sonar dome is smaller than others and its comprehensive performance is best compared with other sonar dome. The numerical results agree well with the experimental data.