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Development of a tandem-wing flapping micro aerial vehicle prototype and experimental mechanism.

机译：串联翼扑翼微型飞行器原型的研制和实验机制。

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摘要

In the field of micro-aerial vehicles (MAVs), simplicity of design is an important design characteristic. Simplicity in this context implies light weight, a prerequisite for flapping flight, and from a practical standpoint it aids in the manufacture and operation of the mechanism on such a small scale. However, simplicity comes at a price: as mechanisms are simplified they have fewer degrees of freedom, lower controllability, less power output. All of these will effect the ability of the mechanism to generate lift, but the losses can be minimized through proper design and implementation.; This thesis describes the design and fabrication of a flapping-wing MAV deriving inspiration from the biological mechanisms of a dragonfly. Dragonflies flap with an inclined stroke plane for hovering flight, which in conjunction with their two pairs of wings, presents an unexplored area of research for MAVs. Small changes in the hovering-flight wing kinematics create large simplifications in their mechanical reproduction. The MAV utilizes these simplifications while maintaining the most important characteristics of dragonfly hovering flight, including passive rotation of the wings, reliance on drag forces to generate lift, and the fluid interactions between adjacent wings flapping out-of-phase.; Two successive prototypes are presented, focusing on component design and fabrication techniques. These prototypes allow for easy modification of kinematic variables (phase shift between the fore-and hind-wings and factors that affect wing angle-of-attack) and component variables (most importantly, wing characteristics: size, shape, flexibility), important for future optimization. Initial experimental validation of the prototypes is presented.; To facilitate the experimental validation, a mechanical flapping wing mechanism has been designed and fabricated which is able to reproduce the high-stroke-plane kinematics utilized by dragonflies, an ability lacking in present flapping mechanisms. This flapping wing mechanism allows for the measurement of the instantaneous forces on a wing for a particular kinematics, by driving the wing with dynamically similar kinematics in a tank of oil. These experiments will be used in the future to analyze and optimize the lift generated by flapping-wing MAVs.
机译：在微型航空器（MAV）领域，设计的简单性是重要的设计特征。在这种情况下，简单意味着重量轻，是拍打飞行的先决条件，并且从实际的角度来看，它有助于在如此小的规模上制造和操作该机构。但是，简单性是要付出代价的：随着机制的简化，它们具有更少的自由度，更低的可控制性，更少的功率输出。所有这些都会影响该机构产生升力的能力，但是可以通过适当的设计和实现将损失降到最低。本文从蜻蜓的生物学机制中汲取灵感，描述了一种扑翼式翼状病毒的设计与制造。蜻蜓的襟翼具有倾斜的行程平面以进行悬停飞行，该飞行器与它们的两对翅膀结合在一起，构成了无人飞行器的研究领域。悬停飞行的机翼运动学的细微变化大大简化了它们的机械复制。 MAV在保持蜻蜓盘旋飞行的最重要特征的同时，利用了这些简化，包括机翼的被动旋转，依靠阻力产生升力以及相邻机翼之间的流体相互作用异相扑动。展示了两个连续的原型，重点是组件设计和制造技术。这些原型可以轻松修改运动学变量（前机翼和后机翼之间的相移以及影响机翼攻角的因素）和组件变量（最重要的是机翼特性：尺寸，形状，灵活性），对于未来的优化。介绍了原型的初步实验验证。为了便于实验验证，已经设计并制造了一种机械拍打翼机构，该机构能够再现蜻蜓利用的高行程平面运动学，这是当前拍打机构所缺乏的能力。该襟翼机翼机构通过在油箱中以动态相似的运动学原理驱动机翼，从而针对特定的运动学测量机翼上的瞬时力。这些实验将在未来用于分析和优化由襟翼式MAV产生的升力。

著录项

  • 作者

    DiLeo, Christopher.;

  • 作者单位

    University of Delaware.$bDepartment of Mechanical Engineering.;

  • 授予单位 University of Delaware.$bDepartment of Mechanical Engineering.;
  • 学科 Engineering Mechanical.; Engineering Robotics.
  • 学位 M.S.M.E.
  • 年度 2007
  • 页码 154 p.
  • 总页数 154
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 机械、仪表工业;
  • 关键词

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