高速摄影和水动力同步测试在冰桨碰撞模型试验中的应用

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振动与冲击 ›› 2021, Vol. 40 ›› Issue (17) : 161-166.

论文

武珅，宋明太，芮伟

作者信息 +

Application of high-speed photography and hydrodynamic synchronous measurement in model tests of ice-propeller collision

WU Shen, SONG Mingtai, RUI Wei

Author information +

文章历史 +

摘要

船舶在冰区航行时，破碎冰块沿船体侧面和底部滑动至船尾，不可避免地与螺旋桨发生冰桨碰撞。瞬态的冰桨碰撞作用对螺旋桨水动力性能产生影响，且会随时间和空间变化。因此在冰桨碰撞螺旋桨水动力性能模型试验中，除采集螺旋桨水动力的时历变化曲线外，获取冰块运动位置和冰桨碰撞过程的时空变化信息对于综合分析冰桨碰撞影响尤为重要。通过多个高速图像采集设备与螺旋桨水动力测量装置组成的同步测试和分析系统可有效实现这一目的。试验结果表明:高速摄像和水动力同步测试在冰桨碰撞模型试验中的应用效果良好，信号误差在1 ms以内；同步测试结果能够为分析不同冰桨碰撞过程对螺旋桨水动力性能影响提供可靠依据。

Abstract

Ice-propeller collision is inevitable since broken ice can slide to a ship’s stern along its side and bottom during the ship navigating in ice area.Hydrodynamic performance of marine propeller may be affected by transient ice-propeller collision, these effects change with variation of time and space.Therefore, in hydrodynamic performance model tests of ice-propeller collision, besides collecting time history curves of propeller hydrodynamic performance, it is particularly important to achieve ice positions and spatiotemporal change information of ice-propeller collision for comprehensive analysis of ice-propeller collision influences.Here，a synchronous measurement and analysis system was set up with multiple high-speed video acquisition devices and propeller hydrodynamic performance measuring devices to realize this target.The test results showed that the application effect of high-speed video and hydrodynamic synchronous measurement in ice-propeller collision model tests is good, the signal error is less than 1 ms; the synchronous measurement results can provide a reliable basis for analyzing effects of different ice-propeller collision processes on propeller hydrodynamic performance.

导出引用

武珅，宋明太，芮伟. 高速摄影和水动力同步测试在冰桨碰撞模型试验中的应用[J]. 振动与冲击, 2021, 40(17): 161-166

WU Shen, SONG Mingtai, RUI Wei. Application of high-speed photography and hydrodynamic synchronous measurement in model tests of ice-propeller collision[J]. Journal of Vibration and Shock, 2021, 40(17): 161-166

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