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航空学报  2013 

一种基于结构动力学的柔性扑翼气动结构耦合方法研究

DOI: 10.7527/S1000-6893.2013.0328, PP. 2668-2681

Keywords: 扑翼,气动结构耦合,非定常流动,空气动力学,结构动力学,柔性结构

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Abstract:

基于结构动力学理论,发展了一套适用于扑翼气动结构耦合特性的数值模拟方法采用计算流体力学(CFD)方法数值模拟扑翼的非定常绕流,得到扑翼的非定常气动特性,基于计算结构力学(CSD)方法求解扑翼结构动力学方程得到扑翼的动态结构变形位移,从而得到周期内各时刻的扑翼外形,重复上述过程直至气动、结构变形均收敛。其中,扑翼非定常气动特性通过求解雷诺平均Navier-Stokes方程得到。对于结构动态特性,首先基于Hamilton原理推导了扑翼的结构运动方程,并对动能和应变能进行变分,得到扑翼动力学方程,然后利用结构有限元方法对该方程进行离散并求解。通过与实验结果进行对比,验证了本文所发展求解程序的有效性。在此基础上针对实际柔性扑翼的简化模型展开数值模拟,研究了柔性变形对扑翼气动特性的影响,并进一步对刚性和柔性扑翼流场细节进行比较,分析研究了结构变形对柔性扑翼气动特性的影响机理。

References

[1]  Shyy W, Aono H, Chimakurthi S K, et al. Recent progress in flapping wing aerodynamics and aeroelasticity. Progress in Aerospace Sciences, 2010, 46(7): 284-327.
[2]  Keennon M, Klingebiel K, Won H, et al. Development of the nano hummingbird: a tailless flapping wing micro air vehicle. 50th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition, 2012: 1-24.
[3]  Zhang Y F, Song W P, Song B F. Research on wing structure deformation for aerodynamic force and inertial force of flapping-wing. Journal of Aerospace Power, 2010, 25(7): 7-18. (in Chinese) 张亚锋, 宋文萍, 宋笔锋. 扑翼机翼气动力和惯性力对翼杆结构变形研究. 航空动力学报, 2010, 25(7): 7-18.
[4]  Yang W Q, Song B F, Song W P, et al. The effects of span-wise and chord-wise flexibility on the aerodynamic performance of micro flapping-wing. Chinese Science Bulletin, 2012, 57(22): 2887-2897.
[5]  Yang Y, Li D, Zhang Z H. Influence of flapping wing micro aerial vehicle unsteady motione on horizontal tail. Acta Aeronautica et Astronautica Sinica, 2012, 33(10): 1827-1833. (in Chinese) 杨茵, 李栋, 张振辉. 微型扑翼飞行器非定常运动对平尾的影响. 航空学报, 2012, 33(10): 1827-1833.
[6]  Yang W Q, Song B F, Song W P. Aerodynamic performance research of micro flapping-wing in low Reynolds number flow. Acta Aerodynamica Sinica, 2011, 29(1): 32-38. (in Chinese) 杨文青, 宋笔锋, 宋文萍. 微型扑翼低雷诺数绕流气动特性研究. 空气动力学学报, 2011, 29(1): 32-38.
[7]  Xiao T H, Duan W B, Ang H S. Numerical investigation on aerodynamics and power requirement of a bird-like flexible flapping wing. Acta Aerodynamica Sinica, 2011, 29(6): 709-718. (in Chinese) 肖天航, 段文博, 昂海松. 仿鸟柔性扑翼气动特性与能耗的数值研究. 空气动力学学报, 2011, 29(6): 709-718.
[8]  Yang T, Wei M, Zhao H. Numerical study of flexible flapping wing propulsion. AIAA Journal, 2010, 48(12): 2909-2915.
[9]  Zhao L, Huang Q, Deng X, et al. Aerodynamic effects of flexibility in flapping wings. Journal of the Royal Society Interface, 2010, 7(44): 485-497.
[10]  Doman D B, Tang C, Regisford S. Modeling interactions between flexible flapping-wing spars, mechanisms, and drive motors. Journal of Guidance, Control, and Dynamics, 2011, 34(5): 1457-1473.
[11]  Yoo H H, Chung J. Dynamics of rectangular plates undergoing prescribed overall motion. Journal of Sound and Vibration, 2001, 239(1): 123-137.
[12]  Huang W X, Chang C B, Sung H J. An improved penalty immersed boundary method for fluid-flexible body interaction. Journal of Computational Physics, 2011, 230(12): 5061-5079.
[13]  Jinyang L, Jiazhen H. Geometric nonlinear formulation and discretization method for a rectangular plate undergoing large overall motions. Mechanics Research Communications, 2005, 32(5): 561-571.
[14]  Singh B, Chopra I. Insect-based hover-capable flapping wings for micro air vehicles: experiments and analysis. AIAA Journal, 2008, 46(9): 2115-2135.
[15]  Yang W Q, Song B F, Song W P, et al. The effects of span-wise and chord-wise flexibility on the aerodynamic performance of micro flapping-wing. Chinese Science Bulletin, 2012, 57(22): 2887-2897.
[16]  An X M, Xu M, Chen S L. Analysis for second order time accurate CFD/CSD coupled algorithms. Acta Aerodynamica Sinica, 2009, 27(5):547-552. (in Chinese) 安效民, 徐敏, 陈士橹. 二阶时间精度的CFD/CSD 耦合算法研究. 空气动力学学报, 2009, 27(5):547-552.
[17]  Beckert A, Wendland H. Multivariate interpolation for fluid-structure-interaction problems using radial basis functions. Aerospace Science and Technology, 2001, 5(2): 125-134.
[18]  Xie H, Song W P, Song B F. Numerical solution of Navier-Stokes equations for flow over a flapping wing. Journal of Northwestern Polytechnical University, 2008, 27(2): 227-233. (in Chinese) 谢辉, 宋文萍, 宋笔锋. 微型扑翼绕流的N-S方程数值模拟. 西北工业大学学报, 2008, 27(2): 227-233.
[19]  Heathcote S, Wang Z, Gursul I. Effect of spanwise flexibility on flapping wing propulsion. Journal of Fluids and Structures, 2008, 24(2): 183-199.

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