[1]李 军,吴 磊,孙延超,等.某火箭发射系统炮口振动等效刚度分析[J].南京理工大学学报(自然科学版),2013,37(02):239.
 Li Jun,Wu Lei,Sun Yanchao,et al.Initial muzzle disturbance analysis of rocket launching system based on equivalent stiffness[J].Journal of Nanjing University of Science and Technology,2013,37(02):239.
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某火箭发射系统炮口振动等效刚度分析
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《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

卷:
37卷
期数:
2013年02期
页码:
239
栏目:
出版日期:
2013-04-30

文章信息/Info

Title:
Initial muzzle disturbance analysis of rocket launching system based on equivalent stiffness
作者:
李 军吴 磊孙延超李彦君莫宗来
南京理工大学 机械工程学院,江苏 南京 210094
Author(s):
Li JunWu LeiSun YanchaoLi YanjunMo Zonglai
School of Mechanical Engineering,NUST,Nanjing 210094,China
关键词:
多体动力学 炮口振动 快速随动 等效刚度 超近程防卫
Keywords:
multi-body dynamics muzzle vibration rapid servo equivalent stiffnesses ultra-short-range defense
分类号:
TJ393
摘要:
针对系统快速随动产生的炮口振动影响火箭发射精度的问题,该文采用多体动力学方法分析了某超近程防卫武器系统的炮口振动。将系统俯仰体和回转体的等效扭转刚度以及基座3个方向的等效刚度作为设计变量,以减小炮口振动线速度为优化目标,优化得出了5个设计指标的最优值,对比分析了优化前后武器系统的动力学特性。结果表明,优化后系统的残余振动幅度明显减弱,振动迅速衰减,不同结构的刚度的合理匹配减小了制动阶段炮口线速度的振荡幅值。
Abstract:
In view of that the muzzle vibration caused by the rapid servo affects the firing accuracy of the rocket weapon launch system,the muzzle vibration of the ultra-short-range defensive weapon system is analyzed by the multi-body dynamics method.Taking minimuming the muzzle vibration linear velocity as the optimum object,the rotating body torsional stiffness,the pitching body torsional stiffness and three submarine base stiffnesses are optimized,and the five optimal equivalent stiffnesses are obtained.The dynamics properties of the system before and after optimization are compared.The results show that the residual system vibration is greatly reduced and decays soon after optimization,and the rational match of different structure stiffnesses obviously decreases the oscillation amplitude of the muzzle vibration linear velocity during the braking phase.

参考文献/References:

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[1]谢 润,杨国来,徐龙辉.自行火炮行进间刚柔耦合多体系统动力学分析[J].南京理工大学学报(自然科学版),2014,38(05):588.
 Xie Run,Yang Guolai,Xu Longhui.Dynamic analysis of multi-body system for rigid-flexible coupling self-propelled gun on move[J].Journal of Nanjing University of Science and Technology,2014,38(02):588.

备注/Memo

备注/Memo:
收稿日期:2012-08-24 修回日期:2012-11-14
作者简介:李军(1965-),男,博士,教授,主要研究方向:火箭发射系统总体理论与技术,E-mail:lijunly@njust.edu.cn。
更新日期/Last Update: 2013-04-30