Kniesburges Stefan, Punger Nina, Tur Bogac, Zöllner Michael, In Het Panhuis Marc, Döllinger Michael
Department of Otorhinolaryngology, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nürnberg, 91054, Erlangen, Germany.
Institute of Information Systems, Hof University, 95213, Münchberg, Germany.
Sci Rep. 2025 Mar 25;15(1):10331. doi: 10.1038/s41598-025-94834-0.
The popularity of surfing has increased during the last 20 years with the growing number of river waves and artificial wave pools. For these different surfing conditions, hydrodynamic characteristics of boards and fins and their optimization become interesting for industry and science to analyze the biomechanics and physiology during surfing. In this work, a measuring system was developed assembled of four small pressure sensors included in a 3D-printed fin within a 2-fin configuration. The measurements were controlled by an acquisition board mounted into a surfboard. The system was initially tested in a water tank and exhibited a high accuracy of measured pressure. Afterwards, a surfer surfed the instrumented surfboard on a river wave and performed three cycles of surfing from one side of the wave channel to the other. The results showed a pressure difference between both sides of the instrumented fin that produces periodical lift forces directed away from the surfboard. Thereby, the maximum lift force was produced during the surfer's motion from one side of the channel side to the other. It is assumed to increase the stability of the surfer's back foot in combination with the right fin producing a lift force in opposite direction.
在过去20年里，随着河浪和人工波浪池数量的增加，冲浪运动越来越受欢迎。对于这些不同的冲浪条件，冲浪板和鳍片的水动力特性及其优化对于工业界和科学界分析冲浪过程中的生物力学和生理学变得很有趣。在这项工作中，开发了一种测量系统，该系统由包含在两鳍配置中的3D打印鳍片中的四个小型压力传感器组成。测量由安装在冲浪板中的采集板控制。该系统最初在水箱中进行测试，显示出测量压力的高精度。之后，一名冲浪者在河浪上使用装有仪器的冲浪板冲浪，从波浪通道的一侧到另一侧进行了三个冲浪周期。结果显示，装有仪器的鳍片两侧存在压力差，产生了背离冲浪板的周期性升力。因此，在冲浪者从通道一侧移动到另一侧的过程中产生了最大升力。据推测，这与右鳍产生相反方向的升力相结合，增加了冲浪者后脚的稳定性。
