为实现牵引汽艇航速精准预报及航行性能优化，采用数值模拟方法系统分析不同航速下汽艇的阻力特性、姿态变化及与喷水推进器的推力匹配关系。并针对原始艇型纵倾角过大的问题，提出增设尾部楔形板的优化方案。研究结果表明，原艇型在设计航速下的纵倾角过大，可达7.1°，不利于汽艇操纵与航行减阻。通过在艇尾加装楔形角10°的尾部楔形板，可使汽艇在40 km/h航速下的航行纵倾角降至2.5°，显著改善汽艇航行姿态，减小汽艇航行阻力。研究为牵引汽艇的快速性评估与航行性能优化提供了可行的数据支撑与参考方案。
To achieve accurate speed prediction and optimize the performance of towing launch boat, Numerical simulation method was adopted to systematically analyze the boat′s resistance characteristics, attitude changes, and thrust matching with the waterjet at different speeds. Due to the excessive trim angle of the original boat hull at high speed, an optimization scheme of adding a stern wedge plate was proposed. The research results show that: the trim angle of the original hull reaches up to 7.1° at the design speed, which is unfavorable for hull maneuvering and resistance reduction. By installing a stern wedge plate with a wedge angle of 10° at the hull bottom stern, the trim angle of the hull can be reduced to 2.5° at a speed of 40 km/h, which significantly improves the hull′s attitude and reduces the boat′s resistance. This study provides feasible data support and a reference scheme for the rapidity evaluation and navigation performance optimization of towing launch boats。
2026,48(2): 29-34 收稿日期：2025-12-21
DOI：10.3404/j.issn.1672-7649.2026.02.005
分类号：U664.3
作者简介：石中伟(1982-),男,硕士,工程师,研究方向为工程装备管理保障
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