The interference aerodynamics caused by the wing elasticity during store separation
The interference aerodynamics caused by the wing elasticity during store separation
复制标题
商店分离过程中机翼弹性引起的干扰空气动力学
DOI：
10.1016/j.actaastro.2015.12.039
复制
发表时间：
2016-04
影响因子：
3.5
通讯作者：
叶正寅
中科院分区：
文献类型：
--
作者：
杨磊;叶正寅
空中发射到轨道是一种将货物运送到高空并将货物从飞机发射到轨道的技术。飞行器与储存库的分离是空中发射入轨技术中最重要也是最困难的阶段之一。飞机与库中库分离存在较强的气动干扰。当飞机的展弦比较大时，必须考虑机翼的弹性变形。本文的主要目的是研究由机翼弹性变形引起的干涉空气动力学对储存库非定常空气动力学的影响。通过同时求解非定常Navier-Stokes方程、六自由度动力学方程和结构动力学方程的耦合函数，对考虑飞机弹性变形的存储分离进行了数值模拟。并对相互作用的气动力进行了分析。研究表明，在分离过程的早期，气动干扰明显，弹性翼的主导频率决定了储层的气动力频率。由于干涉空气动力学的影响，横摇角响应和俯仰角响应增大。当储物架安装在翼尖下方时，翼尖涡引起的附加气动效应明显，加速了储物架侧向力的发散和侧向姿态角的增大。本研究为空射入轨的工程应用提供了一些有益的结论。
Air-launch-to-orbit is the technology that has stores carried aloft and launched the store from the plane to the orbit. The separation between the aircraft and store is one of the most important and difficult phases in air-launch-to-orbit technology. There exists strong aerodynamic interference between the aircraft and the store in store separation. When the aspect ratio of the aircraft is large, the elastic deformations of the wing must be considered. The main purpose of this article is to study the influence of the interference aerodynamics caused by the elastic deformations of the wing to the unsteady aerodynamics of the store. By solving the coupled functions of unsteady Navier–Stokes equations, six degrees of freedom dynamic equations and structural dynamic equations simultaneously, the store separation with the elastic deformation of the aircraft considered is simulated numerically. And the interactive aerodynamic forces are analyzed. The study shows that the interference aerodynamics is obvious at earlier time during the separation, and the dominant frequency of the elastic wing determines the aerodynamic forces frequencies of the store. Because of the effect of the interference aerodynamics, the roll angle response and pitch angle response increase. When the store is mounted under the wingtip, the additional aerodynamics caused by the wingtip vortex is obvious, which accelerate the divergence of the lateral force and the lateral-directional attitude angle of the store. This study supports some beneficial conclusions to the engineering application of the air-launch-to-orbit.
登录
查看更多内容
影响因子：
2.2
作者：
M. Sarigul-Klijn;N. Sarigul-Klijn;Bob Morgan;Jim Tighe;A. Leon;G. Hudson;B. Mckinney;D. Gump
通讯作者：
M. Sarigul-Klijn;N. Sarigul-Klijn;Bob Morgan;Jim Tighe;A. Leon;G. Hudson;B. Mckinney;D. Gump
DOI：
10.1080/19942060.2007.11015197
发表时间：
2007-01
影响因子：
6.1
作者：
Weiwei Zhang;Yuewen Jiang;Zhengyin Ye
通讯作者：
Weiwei Zhang;Yuewen Jiang;Zhengyin Ye
DOI：
10.2514/6.2008-376
发表时间：
2008-01
期刊：
--
影响因子：
--
作者：
Eric F. Charlton;M. B. Davis
通讯作者：
Eric F. Charlton;M. B. Davis
DOI：
10.1115/imece2013-63772
发表时间：
2013-11
期刊：
--
影响因子：
--
作者：
M. Kozak;E. N. Yildiz;Y. Yazıcıoğlu;E. Cigeroglu
通讯作者：
M. Kozak;E. N. Yildiz;Y. Yazıcıoğlu;E. Cigeroglu
影响因子：
7.2
作者：
N. Smirnov;V. Betelin;R. M. Shagaliev;V. Nikitin;I. Belyakov;Yu.N. Deryuguin;S. Aksenov;D. A. Korchazhkin
通讯作者：
N. Smirnov;V. Betelin;R. M. Shagaliev;V. Nikitin;I. Belyakov;Yu.N. Deryuguin;S. Aksenov;D. A. Korchazhkin