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Non-linear Dynamic Analysis of a Piezoelectrically Actuated Flapping Wing

机译:压电式拍打翼的非线性动力学分析

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摘要

An energy method is used in order to derive the non-linear equations of motion of a smart flapping wing. Flapping wing is actuated from the root by a PZT unimorph in the piezofan configuration. Dynamic characteristics of the wing, having the same size as dragonfly Aeshna Multicolor, are analyzed using numerical simulations. It is shown that flapping angle variations of the smart flapping wing are similar to the actual dragonfly wing for a specific feasible voltage. An unsteady aerodynamic model based on modified strip theory is used to obtain the aerodynamic forces. It is found that the smart wing generates sufficient lift to support its own weight and carry a small payload. It is therefore a potential candidate for flapping wing of micro air vehicles.
机译:为了导出智能扑翼的非线性运动方程,使用了一种能量方法。拍翼由压电风扇配置的PZT unimorph从根部驱动。使用数值模拟分析了与蜻蜓Aeshna Multicolor尺寸相同的机翼动态特性。结果表明,对于特定的可行电压,智能扑翼的扑角变化与实际蜻蜓翼相似。基于修正带理论的非定常空气动力学模型被用于获得空气动力。发现智能机翼产生足够的升力以支撑自身重量并携带少量有效载荷。因此,它是微型飞行器扑翼的潜在候选者。

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