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...
兵工学报  2014 

被动式半捷联平台的动力学模型及其稳定性分析

DOI: 10.3969/j.issn.1000-1093.2014.09.016, PP. 1436-1442

Keywords: 兵器科学与技术,惯性测量系统,制导炮弹,半捷联平台

Full-Text   Cite this paper   Add to My Lib

Abstract:

?在某些高速滚转的制导炮弹中,捷联式惯性测量系统无法同时满足测试精度与量程的要求。被动式半捷联平台可以通过隔离弹体滚转运动有效解决这一问题。通过对弹体及被动式半捷联平台进行力学分析建立了半捷联平台内筒的动力学模型,通过4阶龙格-库塔法对动力学模型进行了数值求解,得出不同弹体俯仰角下平台内筒的滚动角度和角速率值。在三轴高速转台上进行了地面半实物仿真实验,转台实验结果与数值计算结果相符。计算及实验结果表明弹体飞行俯仰角越小,平台内筒的滚动角度和角速率就越小,被动式半捷联平台就越稳定。本研究适用于常规弹药的制导化改造,具有一定的工程应用价值。

References

[1]  [1] Velde E V, Bentley G K, Fagan J H, et al. Onboard computer requirements for navigation of a spinning and maneuvering vehicle [C]∥AIAA Guidance, Control, and Fight Dynamics Conference. Pasadena, California:AIAA, 1968: 1-13.
[2]  [2] Garg S C, Morrow L D, Mamen R. Strapdown navigation technology: a literature survey [J]. Journal of Guidance and Control, 1978, 1(3): 161-172.
[3]  [3] Imbault J J, Tjulin H, Kinney R, et al. Mini-RIMS: a miniature roll-stabilized inertial measurement system [C]∥7th Conference on Sounding Rockets, Balloons and Related Space Systems. Ocean City, Maryland:AIAA, 1986: 35-43.
[4]  [4] 王晨, 董景新,高宗耀,等. 火箭弹大动态单轴平台惯导系统姿态算法[J]. 中国惯性技术学报,2012,20(3):257-261.
[5]  [5] Ohlmeyer E J, Fraysse J W, Pepitone T R. Guidance, navigation and control without gyros: a gun-launched munition concept [C]∥AIAA Guidance, Navigation, and Control Conference and Exhibit. Monterey, California:AIAA, 2002: 1-14.
[6]  [6] Davis B S. Using low-cost MEMS accelerometers and gyroscopes as strapdown IMUs on rolling projectiles [C]∥Proceeding of Position Location and Navigation Symposium, IEEE. California: IEEE, 1998: 594-601.
[7]  [7] 刘朝华,王勇,毛玉良,等. 基于MEMS加速度计的弹体滚转角测量方法[J]. 中国惯性技术学报,2012,20(5):505-509.
[8]  [8] 李枚,代刚,唐海林,等. 一种高动态使用微惯性测量单元的实现[J]. 中国惯性技术学报, 2012,20(2):127-130.
[9]  [9] SKF . The SKF model for calculating the frictional moment[EB/OL]. [2013-12-20]. http:∥www.skf.com/group/products/bearings-units-housings/ball-bearings/principles/friction/skf-model/index.html?WT.oss=Frictional%20moment&WT.z_oss_boost=0&tabname=All&WT.z_oss_rank=1.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133