扑翼的变刚度设计及其对升力和推力的影响

doi:10.7527/S1000-6893.2020.23785

材料工程与机械制造

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扑翼的变刚度设计及其对升力和推力的影响

李康康¹, 陈巍巍²

1. 南昌航空大学航空制造工程学院, 南昌 330063;
2. 哈尔滨工业大学机电工程学院, 哈尔滨 150001

收稿日期:2019-12-30 修回日期:2020-01-27 出版日期:2020-11-15 发布日期:2020-06-04
通讯作者: 李康康 E-mail:70785@nchu.edu.cn
基金资助:
江西省青年科学基金（20202BABL214029）

Variable stiffness design of flapping wings and its effects on lift and thrust

LI Kangkang¹, CHEN Weiwei²

1. School of Aeronautic Manufacturing Engineering, Nanchang Hangkong University, Nanchang 330063, China;
2. School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, China

Received:2019-12-30 Revised:2020-01-27 Online:2020-11-15 Published:2020-06-04
Supported by:
Project Supported by Jiangxi Province Foundation for Youths (20202BABL214029)

摘要/Abstract

摘要： 为提高扑翼飞行器的升力和推力以提高其飞行性能，运用生物扑翼的仿生原理，研究扑翼飞行器的扑翼升力和扑翼推力随扑翼刚度变化的机理。借鉴"变刚度关节机构和平面转动冗余并联机构通过调节张力改变刚度"这一机构学原理，运用变刚度关节机构相互串联实现扑翼在扑动方向上变刚度，同时运用平面转动冗余并联机构实现扑翼在扭转方向上变刚度。建立扑翼的扑动关节刚度和扭转机构刚度随预张力变化的模型，并通过实验和仿真验证扑翼扑动关节刚度和扭转机构刚度随预张力的变化。研究扑翼的升力和推力与扑翼刚度之间的关系，验证了通过调节扑翼刚度匹配其扑动频率可以提高扑翼的升力和推力。

关键词: 变刚度, 扑翼, 升力, 推力, 刚度匹配

Abstract: To improve lift and thrust and hence flight performance of flapping-wing air vehicles (ornithopters), this study examines the mechanism of both the lift and thrust changing with the stiffness of flapping wings by applying the bionic principles of biological wings. Based on the principle that the stiffness of both variable-stiffness joint mechanisms and Redundantly Planar Rotational Parallel Mechanisms (RPRPM) can be modulated by adjusting the pretensions, a stiffness variation on the flapping direction is achieved by variable-stiffness joints connected to each other. The rotating stiffness modulation of the wings can be replicated by applying RPRPM. The stiffness variation models of the flapping joints and the rotating mechanism with pretensions are established, and then validated by experiments and simulation. The relationships between both the lift and the thrust of the wing and the stiffness of the wing are studied, and it is validated that the lift and the thrust of the wing can be improved by modulating the stiffness of the wing to match the flapping frequency.

Key words: variable stiffness, flapping wings, lift, thrust, stiffness matching

中图分类号:

V276

李康康, 陈巍巍. 扑翼的变刚度设计及其对升力和推力的影响[J]. 航空学报, 2020, 41(11): 423785-423785.

LI Kangkang, CHEN Weiwei. Variable stiffness design of flapping wings and its effects on lift and thrust[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2020, 41(11): 423785-423785.

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E-mail：hkxb@buaa.edu.cn

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扑翼的变刚度设计及其对升力和推力的影响

Variable stiffness design of flapping wings and its effects on lift and thrust

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