竹象虫后翅结构力学和空气动力学特性

许顺; 王鹏宇; 崔舒然; 陈晓明; 王骏冲; 付辰琦

doi:10.13224/j.cnki.jasp.20220091

竹象虫后翅结构力学和空气动力学特性

doi: 10.13224/j.cnki.jasp.20220091

吉林农业大学工程技术学院，长春 130118

基金项目:

吉林农业大学科研启动基金 202021152

吉林省科技发展计划项目 20200201294JC

详细信息

作者简介:
许顺（1988-），女，讲师、硕士生导师，博士，主要从事工程仿生学、农业机械化及其自动化研究。

通讯作者:
付辰琦（1988-），男，实验师，硕士，主要从事计算流体力学。E⁃mail：chenqi.fu@jlau.edu.cn

中图分类号: V211.3
计量
- 文章访问数: 160
- HTML浏览量: 57
- PDF量: 41
- 被引次数: 0
出版历程
- 收稿日期: 2022-02-28

Structural mechanical properties and aerodynamic characteristics of hind wings of cyrtotrachelus buqueti

College of Engineering and Technology， Jilin Agricultural University，Changchun 130118，China

摘要

摘要:
为研究长足大象甲后翅结构特性和飞行过程的空气动力学特性，建立长足大象甲后翅翅脉特征曲线的数学模型，利用有限元软件对其进行均匀载荷、垂直载荷和扭转载荷3种不同载荷下的静态分析和模态分析。基于嵌套网格法在Fluent软件中模拟后翅上下扑动，分析不同扑动幅值、扭转角度和扑动频率下的后翅升力系数和阻力系数变化规律。结果表明：长足大象甲后翅翅脉分布具有良好的结构刚度和承载能力，在受到不同载荷时，位移和应力的变化较小，结构稳定性较强，并且后翅振动频率为90.312 Hz，与同类昆虫相比，更符合微型扑翼飞行翼研发要求。此外，模拟试验表明长足大象甲后翅可以通过改变扑动幅值、扭转角度和扑动频率来提高升力和推力以实现特技飞行。
- 竹象虫 /
- 仿生 /
- 气动特性 /
- 升力系数 /
- 阻力系数
Abstract:
In order to study the structural characteristics of hind wing and the aerodynamic characteristics during the flight of bamboo weevil,the mathematical model was established based on the characteristic curves of the wing veins of weevil hind wings.By using finite element method,the static structural mechanical properties of hind wing under three different loads （uniform load,vertical load,and torsional load） were researched,and the modal parameters were calculated.The up‑down flapping of the hind wing was simulated in Fluent based on the overlapping mesh method.Aerodynamic characteristics of the hind wing under different flapping amplitude,torsion angle and flapping frequency were analyzed.The results showed that the rib distribution of the hind wing of the bamboo weevil has good structural stiffness and carrying capacity.The displacement and stress changes were small under different loads,and the structural stability was strong.The vibration frequency of the hind wing was 90.312 Hz,which was more in line with the development requirements of the micro flapping wing compared with similar insects.In addition,the simulation results indicated that the hind wing of bamboo weevil can improve the lift and thrust by changing the flutter amplitude,torsion angle and flutter frequency to achieve aerobatic flight.
- bamboo weevil /
- bionic /
- aerodynamic characteristics /
- lift coefficient /
- drag coefficient
注释:

1) 陈越

HTML

图 1 竹象虫后翅

Figure 1. Hind wing of bamboo weevil

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图 2 后翅数学模型（单位：mm）

Figure 2. Mathematical model of hind wing （unit:mm）

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图 3 流体网格

Figure 3. Fluid mesh

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图 4 后翅运动简图

Figure 4. Brief diagram of hind wing movement

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图 5 均匀载荷

Figure 5. Uniform load

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图 6 垂直载荷

Figure 6. Vertical load

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图 7 扭转载荷

Figure 7. Torsion load

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