折叠方式对折叠翼气动及展开特性的影响
|
摘要
折叠方式对折叠翼的气动特性及展开特性有重要影响。对对称折叠、顺向折叠方式下折叠翼的气动特性及展开运动过程分别进行了数值模拟仿真和动力学仿真,比较了折叠方式对折叠翼气动特性、展开运动特性的影响,并分析其影响机制。计算结果表明,相对状态下,与对称折叠时相比,顺向折叠时,下折叠翼所受气动力减小,上折叠翼略有增大,导致负攻角情况下顺向折叠时,下折叠翼展开时间增加,展开同步性增强;正攻角情况下下折叠翼展开时间减小,展开同步性减弱。侧滑状态下,两种折叠方式下折叠翼展开时间基本相当,由于背风侧下折叠翼展开时间减小,导致顺向折叠时折叠翼展开的同步性有所减弱。同时,在小展开角度下,顺向折叠时全弹纵向静稳定性有所提高。
The folding type has a significant effect on the aerodynamic characteristics and unfolding process of the folding-wing.For two classic folding types,which are FWSDW(folding-with-symmetry-direction-wing) and FWCDW(folding-with-consistent-direction-wing),numerical method has been used to study their aerodynamic and unfolding characteristics.The simulation results show that,comparing to the FWSDW,the FWCDW can acquire less normal aerodynamic force on the lower part of the folding-wing,but it is a little more on the upper part.As a result,when the angle of attack is negative,the FWCDW has a longer unfolding time on the lower part,which makes the unfolding synchronization increase.when the angle of attack is positive,the FWCDW has a shorter unfolding time on the lower part,which can reduce the unfolding synchronization. Overall,the static stability of FWCDW has been improved compared with the FWSDW.
The folding type has a significant effect on the aerodynamic characteristics and unfolding process of the folding-wing.For two classic folding types,which are FWSDW(folding-with-symmetry-direction-wing) and FWCDW(folding-with-consistent-direction-wing),numerical method has been used to study their aerodynamic and unfolding characteristics.The simulation results show that,comparing to the FWSDW,the FWCDW can acquire less normal aerodynamic force on the lower part of the folding-wing,but it is a little more on the upper part.As a result,when the angle of attack is negative,the FWCDW has a longer unfolding time on the lower part,which makes the unfolding synchronization increase.when the angle of attack is positive,the FWCDW has a shorter unfolding time on the lower part,which can reduce the unfolding synchronization. Overall,the static stability of FWCDW has been improved compared with the FWSDW.
引文
[1]余旭东,葛金玉,段德高,等.导弹现代结构设计[M].北京:国防工业出版社,2007.YU Xundong,GE Jinyu,DUAN Degao,et al. Modern structure design of missiles[M].Beijing:National Defence Industry Press,2007.
[2] Henry J,Schwartz D R,Soukup M A.Design construction and testing of a folding-wing tube-launched micro air vehicle[R].AIAA 2005-1451.
[3]梁均一.离箱扰动和折叠翼展开数学模型研究[J].上海航天,1997,3(6):3-9.LIANG Junyi. Study on mathematic models for leaving box perturbation motion and deployment of folding wing[J].Aerospace Shanghai,1997,3(6):3-9.
[4]贾毅.战术导弹折叠翼两种展开方法及测试结果比较[J].流体力学实验与测量,2003,7(6):70-74.JIA Yi. The comparison between two deploying methods and results of folding wings for some tactical missiles[J].Experiments and Measurements in Fluid Mechanics,2003,7(6):70-74.
[5]赵俊锋,刘莉,杨武.折叠弹翼展开动力学仿真及优化[J].弹箭与制导学报,2012,32(2):155-157.ZHAO Junfeng,LIU Li,YANG Wu. Dynamic simulation and optimization design of folding wing deployment[J].Joumal of Projectiles,Rockets,Missiles and Guidance. 2012,32(2):155-157.
[6]李晓辉,李怀念,吴俊全.火箭弹折叠翼展开过程的计算与试验研究[J].航天器环境工程,2009,26(8):82-84.LI Xiaohui,LI Huainian,WU Junquan. Rockets folding wing calculation and experimental study of the process[J].Spacecraft Environment Engineering,2009,26:82-84.
[7]崔二巍,于存贵,李猛.某导弹折叠弹翼展开过程的仿真分析[J].兵工自动化,2013,32(12):12-14.CUI Erwei,YU Cungui,LI Meng. Simulation analysis of a missile folding wing deployment process[J〗.Ordnance Industry Automation,2013,32(12):12-14.
[8]吴俊全,孙海文,张晓旻.折叠翼展开试验与动力学仿真研究[J].弹箭与制导学报,2011,32(3):164-166.WU Junquan,SUN Haien,ZHANG Xiaoin. The research on unfolding test and dynamic model of folding-wing[J].Journal of Projectiles,Rockets,Missiles and Guidance,2011,32(3):164-166.
[9]甄文强,姬永强,石运国.导弹折叠翼展开过程的动力学仿真及试验研究[J].兵工学报,2016,37(8):1409-1414.ZHEN Wenqiang,JI Yongqiang,SHI Yunguo. Dynamic simulation and experimental study of deployment process of missile folding-wing[J]. Acra Armamentar,2016,37(8):1409-1414.
[10]李真,董玉立,冯成良,等.基于CFD-FASTRAN的导弹折叠弹翼展开过程模拟[J].弹箭与制导学报,2015,35(1):5-8.LI Zhen,DONG Yuli,FENG Chengliang,et al.Simulation of deployment of missile folded wings based on CFD-FASTRAN[J]. Journa1 of Projectiles,Rockets,Missiles and Guidance,2015,35(1):5-8.
[11]单继祥,甄文强,石运国,等.气动效应对折叠翼展开过程影响研究[J].弹箭与制导学报,2017,37(5):105-108.SHAN Jixiang,ZHEN Wenqiang,SHI Yunguo,et al.Effect of aerodynamic moment on the folding wing deployment process[J]. Journa1 of Projectiles,Rockets,Missiles and Guidance,2017,37(5):105-108.
[2] Henry J,Schwartz D R,Soukup M A.Design construction and testing of a folding-wing tube-launched micro air vehicle[R].AIAA 2005-1451.
[3]梁均一.离箱扰动和折叠翼展开数学模型研究[J].上海航天,1997,3(6):3-9.LIANG Junyi. Study on mathematic models for leaving box perturbation motion and deployment of folding wing[J].Aerospace Shanghai,1997,3(6):3-9.
[4]贾毅.战术导弹折叠翼两种展开方法及测试结果比较[J].流体力学实验与测量,2003,7(6):70-74.JIA Yi. The comparison between two deploying methods and results of folding wings for some tactical missiles[J].Experiments and Measurements in Fluid Mechanics,2003,7(6):70-74.
[5]赵俊锋,刘莉,杨武.折叠弹翼展开动力学仿真及优化[J].弹箭与制导学报,2012,32(2):155-157.ZHAO Junfeng,LIU Li,YANG Wu. Dynamic simulation and optimization design of folding wing deployment[J].Joumal of Projectiles,Rockets,Missiles and Guidance. 2012,32(2):155-157.
[6]李晓辉,李怀念,吴俊全.火箭弹折叠翼展开过程的计算与试验研究[J].航天器环境工程,2009,26(8):82-84.LI Xiaohui,LI Huainian,WU Junquan. Rockets folding wing calculation and experimental study of the process[J].Spacecraft Environment Engineering,2009,26:82-84.
[7]崔二巍,于存贵,李猛.某导弹折叠弹翼展开过程的仿真分析[J].兵工自动化,2013,32(12):12-14.CUI Erwei,YU Cungui,LI Meng. Simulation analysis of a missile folding wing deployment process[J〗.Ordnance Industry Automation,2013,32(12):12-14.
[8]吴俊全,孙海文,张晓旻.折叠翼展开试验与动力学仿真研究[J].弹箭与制导学报,2011,32(3):164-166.WU Junquan,SUN Haien,ZHANG Xiaoin. The research on unfolding test and dynamic model of folding-wing[J].Journal of Projectiles,Rockets,Missiles and Guidance,2011,32(3):164-166.
[9]甄文强,姬永强,石运国.导弹折叠翼展开过程的动力学仿真及试验研究[J].兵工学报,2016,37(8):1409-1414.ZHEN Wenqiang,JI Yongqiang,SHI Yunguo. Dynamic simulation and experimental study of deployment process of missile folding-wing[J]. Acra Armamentar,2016,37(8):1409-1414.
[10]李真,董玉立,冯成良,等.基于CFD-FASTRAN的导弹折叠弹翼展开过程模拟[J].弹箭与制导学报,2015,35(1):5-8.LI Zhen,DONG Yuli,FENG Chengliang,et al.Simulation of deployment of missile folded wings based on CFD-FASTRAN[J]. Journa1 of Projectiles,Rockets,Missiles and Guidance,2015,35(1):5-8.
[11]单继祥,甄文强,石运国,等.气动效应对折叠翼展开过程影响研究[J].弹箭与制导学报,2017,37(5):105-108.SHAN Jixiang,ZHEN Wenqiang,SHI Yunguo,et al.Effect of aerodynamic moment on the folding wing deployment process[J]. Journa1 of Projectiles,Rockets,Missiles and Guidance,2017,37(5):105-108.