Flapping at resonance: Realization of an electroactive elastic thorax
Flapping at resonance: Realization of an electroactive elastic thorax
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DOI：
10.1109/robosoft.2018.8404940
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发表时间：
2018-04
期刊：
影响因子：
--
通讯作者：
C. Cao;S. Burgess;A. Conn
中科院分区：
文献类型：
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作者：
C. Cao;S. Burgess;A. Conn
昆虫仿生扑翼微型飞行器（MAV）由于其在复杂环境下的敏捷飞行潜力而引起了人们极大的兴趣。昆虫中的翅膀拍动机构的共振激励是非常有利的，因为它放大了拍动幅度并降低了惯性功率需求。介电弹性体致动器（DEA）产生大的致动应变，其固有的弹性是理想的谐振操作。在这项工作中，我们提出了一个双锥DEA的设计和表征其谐振频率和相移分析其机械功率输出作为DEA质量振荡器。在此基础上，设计了一个由该弹性驱动器驱动的人工胸腔，在18 Hz的频率下，该胸腔能够产生63°的最大扑动振幅。
Insect-inspired flapping wing micro air vehicles (MAV) have attracted considerable interest due to their potential for agile flight in complex environments. Resonant excitation of the wing flapping mechanism in insects is highly advantageous as it amplifies the flapping amplitude and reduces the inertial power demand. Dielectric elastomer actuators (DEA) produce large actuation strain and their inherent elasticity is ideal for resonant operation. In this work we present a double cone DEA design and characterize its resonant frequency and phase shift to analyze its mechanical power output as a DEA-mass oscillator. Then an artificial thorax driven by this elastic actuator is demonstrated, this thorax design is able to provide a peak flapping amplitude of 63° at a frequency of 18 Hz.