全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
航空学报  2013 

风对弹射座椅救生性能的影响

DOI: 10.7527/S1000-6893.2013.0132, PP. 727-740

Keywords: 弹射座椅,大气运动,风速,数值仿真,救生性能

Full-Text   Cite this paper   Add to My Lib

Abstract:

针对某型弹射座椅建立了考虑风速的弹射过程动力学模型。选取不同风速风向和不同弹射速度作为计算状态,对弹射救生过程进行数值仿真,根据仿真结果分析风对弹射座椅救生性能的影响。通过在低速和中速两个弹射速度下,前向风、侧向风和大气垂直运动对弹射座椅救生性能影响的分析可知较大的逆风不但会降低伞衣充满的轨迹高度,而且会产生人伞系统的振荡和摇摆,对安全救生存在一定的影响;大气的垂直运动对弹射救生系统的救生性能影响最大,它直接影响到救生系统的纵向运动轨迹。研究结果表明前向风、侧向风和大气垂直运动均会对弹射座椅的救生性能产生不利影响,在真实的弹射过程中必须考虑风速对弹射救生性能的影响。

References

[1]  郁嘉,林贵平,毛晓东. 弹射救生数值仿真及不利姿态下救生性能分析[J]. 航空学报. 2010, 31(10): 1927-1932.
[2]  Yu Jia, LinGuiping, Mao Xiaodong. Numerical Simula-tion of Ejection Seat and Analysis of Performance under Adverse Attitudes[J]. ACTA AERONAUTICA ET ASTRONAUTICA SINICA, 2010.10, 31(10): 1927-1932.
[3]  郁嘉. 弹射座椅弹射过程姿态轨迹仿真研究[D]. 北京: 北京航空航天大学, 2008.
[4]  Yu Jia. Study on Attitude and Trajectory in Ejection Process of Ejection Seat[D]. Beijing: Beihang Universi-ty, 2008.
[5]  郁嘉,林贵平,吴铭. 弹射座椅减速性能的数值仿真计算[J]. 航空学报. 2006, 27(6): 1033-1038.
[6]  Yu Jia, Lin Guiping, WU Ming. Numerical Simulation of Deceleration Performance for Ejection Seat[J]. ACTA AERONAUTICA ET ASTRONAUTICA SINICA, 2006.11, 27(6): 1033~1038
[7]  Mao X. D., Yu J., Lin G. P. Predicting Ejection Velocity Seat Via Back Propagation Neural Network[J]. Journal of Aircraft. 2011, 48(2): 668-672.
[8]  毛晓东,郁嘉,林贵平. 过载与弹射速度关系研究及神经网络实现[J]. 航空学报. 2010, 31(10): 1907-1913.
[9]  Mao Xiaodong, Yu Jia, Lin Guiping. Realationship Be-tween Load and Ejection Velocity
[10]  Yu J., Lin G. P. Numerical Simulation of Ejection Seat Performance at Adverse Attitude Condition: Proceeding of the 45th Annual SAFE Symposium[Z]. 2007.
[11]  张汉镔. 飞行器安全救生[M]. 北京: 北京航空航天大学出版社, 1990.
[12]  Zhang Hanbin. Aircraft Safe Lifesaving [M]. Beihang University Press, 1990 (in Chinese).
[13]  余莉. 飞行器救生及生命保障技术[M]. 北京: 国防工业出版社, 2009.
[14]  Yu Li. Aircraft lifesaving and life-supporting technolo-gy[M]. Beijing: National Defense Industry Press, 2009 (in Chinese).
[15]  王利荣. 降落伞理论与应用[M]. 北京: 宇航出版社, 1997.
[16]  肖业伦. 航空航天器运动的建模-飞行动力学的理论基础[M]. 北京: 北京航空航天大学出版社, 2003.
[17]  Baum J. D., Loehner R. Numerical Simulation of Pi-lot/Seat Ejection From an F-16: 31st Aerospace Sciences Meeting and Exhibit[Z]. 1993.
[18]  Elson M., Lingard J. S. Object Orientated Ejection Seat Model: Proceedings of the 34th Annual Symp-osium[Z]. Reno, NV: 1996.
[19]  Ma D., Rizer A. L., Obergefell L. A., et al. Validation of the Easy5-ATB Ejection Seat/Occupant Model with High-Speed Sled Test: Proceeding of the 37th SAFE Annual Symposium[Z]. Atlanta, GA: 1999.
[20]  胡国才,向锦武. 弹射座椅救生性能研究[J]. 飞行力学. 2000, 18(4): 78-80.
[21]  Hu Guocai, Xiang Jingwu. Study of Ejection Seat Res-cue Performance[J]. Flight dynamics. 2000, 18(4): 78-80
[22]  周方. 提高低空不利姿态下弹射救生成功率的措施[J]. 航空科学技术. 1998(6): 18-20.
[23]  Zhou Fang. Measures of Increase Ejection Success Probability under Adverse Attitudes[J]. Aviation Tech-nology. 1998(6): 18-20
[24]  Wang Lirong. Theory and Application of Parachute[M]. Astronautic Publishing House, 1997 (in Chinese).
[25]  方振平,陈万春,张曙光. 航空飞行器飞行动力学[M]. 北京: 北京航空航天大学出版社, 2005 .
[26]  Fang Zhenping, Chen Wanchun, Zhang Shuguang. Air-craft Flight Dynamics[M]. Beihang University Press, 2005.11 (in Chinese)
[27]  Xiao Yelun. Modeling of Aircraft and Spacecraft Mo-tion-Theory Basic of Flight Dynamics[M]. Beijing: Beihang University Press, 2003 (in Chinese).
[28]  何渝. 计算机常用数值算法与程序[M].人民邮电出版社, 2003.
[29]  He Yu. Computer Common Numerical Algorithm and Program [M]. Posts and Telecommunications Press, 2003 (in Chinese).

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133