Validation of a model and a simulator for road cycling on real tracks
Validation of a model and a simulator for road cycling on real tracks
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在真实赛道上验证公路自行车模型和模拟器
DOI：
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
Stephan Mantler
中科院分区：
文献类型：
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作者：
Thorsten Dahmen;Roman Byshko;D. Saupe;Martin Röder;Stephan Mantler
在这项研究中，数据采集、分析、建模和仿真的方法在真实的轨道上公路自行车的性能参数开发和评估。为了方便在实验室环境下进行测量，设计了一个模拟器。模拟包括真实的高度轮廓和与自行车手当前在赛道上的虚拟位置同步的视频回放，以及在线可视化的路线和性能参数。本研究中在山路上获得的现场数据与Martin等人（J appll Biomech 14: 276-291, 1998）建立的最先进的公路自行车动力数学模型进行了比较，该模型考虑了梯度力、空气阻力、滚动阻力、车轮轴承摩擦损失和惯性。该模型准确地描述了性能参数，相关系数为0.96 ~ 0.99，信噪比为19.7 ~ 23.9 dB。结果表明，该数学模型可以应用于实测仪上模拟真实赛道上的骑行，在比较现场测量结果和模拟器测量结果时，提供了相似的质量指标。
In this study, methods for data acquisition, analysis, modelling, and simulation of performance parameters in road cycling on real tracks were developed and evaluated. A simulator was designed to facilitate the measurement in a laboratory environment. The simulation included real height profiles and a video playback that was synchronised with the cyclist’s current virtual position on the track, and online visualisation of course and performance parameters. Field data obtained on mountain tracks in this study were compared with the state-of-the-art mathematical model for road cycling power, established by Martin et al. (J Appl Biomech 14: 276–291, 1998), which accounts for the gradient force, air resistance, rolling resistance, frictional losses in wheel bearings and inertia. The model described the performance parameters accurately with correlation coefficients of 0.96–0.99 and signal-to-noise ratios of 19.7–23.9 dB. It was shown that the mathematical model could be implemented on an ergometer for simulating rides on real courses, providing similar quality measures when comparing field and simulator measurements.