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Influence of Structure Parameters of Sonar Domes on Sailing Resistance

机译：声纳穹顶结构参数对航行阻力的影响

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Sailing resistance and underwater acoustic performance are decided by the profile and structure parameters of sonar dome. In the present thesis, influence 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.
机译：航行阻力和水下声学性能取决于声纳圆顶的轮廓和结构参数。本文通过数值模拟了一些“ I”型船的航行阻力对一些关键结构参数的影响，如声纳圆顶最大水面线的长宽比和最大纵向截面的宽高比。研究。数值结果表明，装有声纳圆顶的船舶，其长宽比约为3.4〜3.6，宽高比约为1.1〜1.2，其航行阻力明显小于其他装有声纳圆顶的船舶。此外，声纳圆顶的排水量比其他小，与其他声纳圆顶相比，其综合性能最佳。数值结果与实验数据吻合良好。

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