摘要
以电磁轨道炮试验装置发射系统为研究对象,使用三维软件建立了有限元简化模型,根据多体系统动力学理论和结构有限元方法,进行了模态分析和发射动力学分析。结果表明,提高固有频率、结构阻尼和系统刚度能有效降低振动周期、衰减时间和振动幅值。所得到的结构动态特性可为试验装置结构优化设计与试验评估提供理论支撑。
In this paper, the launching system of the electromagnetic railgun experimental equipment is used as the research object, and the simplified finite element model is established by using a 3D software.Then, modal analysis and launch dynamics analysis are carried out according to the dynamics theory of the multi-body system and structural finite element method. The calculation results show that increasing natural frequency, structural damping, and system stiffness can effectively reduce the vibration period, decay time and vibration amplitude. The obtained dynamic characteristics of the structure can provide theoretical support for the structural optimization design and test evaluation of the test device.
作者
李四超
刘可可
LI Sichao;LIU Keke(Zhengzhou Military Representative Office,Naval Armaments Department,Zhengzhou 450015,China;713th Research Institute,China State Shipbuilding Corporation Limited,Zhengzhou 450015,China)
出处
《兵器装备工程学报》
CAS
CSCD
北大核心
2022年第12期177-181,共5页
Journal of Ordnance Equipment Engineering
基金
国家自然科学基金项目(11302106)。
关键词
电磁轨道炮
发射系统
动力学仿真
electromagnetic railgun
launch system
dynamic simulation
