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Modelling the vibrational behaviour of composite archery arrows

机译:塑造复合射箭箭头的振动行为

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In the sport of archery, recent developments in materials technology have seen the introduction of carbon-fibre aluminium composite arrows. Archery performance has been shown to be dependent on the vibrational behaviour of arrows (including the natural frequencies and mode shapes). This paper investigates the vibration of composite archery arrows through analytical and finite element modelling. Computer models used in this paper employ modal analysis to identify the significant modes of vibration. Results from the numerical simulations are also compared to experimental measurements using a Pòlytec scanning laser Doppler vibrometer (PSV-400). Experiments use both mechanically and acoustically coupled vibration actuators to vibrate the composite arrow structure. Evaluation of the modal-behaviour shows good agreement between the theoretical models and the experiments.
机译:在射箭运动中,最近的材料技术的发展已经看到了碳纤维铝复合箭头的引入。已经显示出射箭性能依赖于箭头的振动行为(包括自然频率和模式形状)。本文通过分析和有限元建模研究了复合射箭箭头的振动。本文中使用的计算机模型采用模态分析来识别显着的振动模式。根据使用Pòlytec扫描激光多普勒振动计(PSV-400)的实验测量也将与数值模拟的结果进行比较。实验使用机械和声学耦合的振动致动器来振动复合箭头结构。对模式行为的评估显示理论模型与实验之间的良好一致性。

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