三维仿生悬停扑翼的时间非对称扑动及柔性变形耦合气动机理研究

项目名称： 三维仿生悬停扑翼的时间非对称扑动及柔性变形耦合气动机理研究

项目编号： No.51505347

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 机械、仪表工业

项目作者： 朱建阳

作者单位： 武汉科技大学

项目金额： 20万元

中文摘要： 本项目以黄蜂悬停时扑翼的气动特性为研究对象，以提高仿生悬停扑翼的负载能力和飞行效率为研究目标，采用数值计算和样机飞行实验相结合的方法，对昆虫悬停时涉及到的一些特殊的扑翼运动方式和流体相互作用机制及流场中涡的运动特性进行基础科学研究。具体研究内容包括：首先改进现有研究仿黄蜂悬停扑翼气动机理的对称扑动模型，构建悬停扑翼的时间非对称扑动轨迹模型；然后通过对黄蜂翅膀力学特性分析，构建三维仿生扑翼柔性变形的数值计算模型，并采用自编的耦合算法实现对扑翼的时间非对称扑动、柔性变形和流体流动相互耦合气动特性的数值研究；最后采用响应面法对扑翼的气动参数进行优化，并设计扑翼样机，进行飞行验证。本项目旨在揭示时间非对称扑动及柔性变形耦合对三维仿生悬停扑翼负载能力和飞行效率及流场中涡运动机制的影响规律，为研制负载能力更强和飞行效率更高的微型扑翼飞行器提供理论和技术基础。

中文关键词： 负载能力；飞行效率；时间非对称扑动；柔性变形；微型扑翼飞行器

英文摘要： In order to improve the loading capacity and flapping efficiency of the bionic hovering wing, the aerodynamic characteristics of the hovering humblebee is investigated in this project. The investigation of some special wing motion of the hovering insect on the aerodynamic characteristics and vortex transport of flapping wing is carried out by using numerical and prototype flight test method for the basic scientific research. The research involves: firstly, the improvement of the existing studying hovering humblebee characteristics of symmetric flapping model is carried out, and the asymmetric flapping model is established. Secondly, Through the analysis of the mechanical properties of the insect wing, three-dimensional numerical model of the bionic flexible wing is established, and the self-developed coupling algorithm is employed to achieve the aerodynamic characteristics of the hovering bionic wing with asymmetric flapping, flexibility and fluid flow coupling analyzing. Finally, the response surface methodology is employed to optimize the aerodynamic parameters of the hovering wing, and the prototype is designed for the validation. The object of this research is to reveal the effect of time asymmetric flapping and flexibility of wing on the aerodynamic characteristics and vortex transport of flapping wing, and it is hoped to provide new ideas and theoretical basis for the development of a stronger loading capacity and a higher flight efficiency of flapping micro air vehicle (FMAV).

英文关键词： Loading capacity;Flapping efficiency;Asymmetric flapping;Flexible;Flapping micro air vehicle