基于刚度匹配的电磁轨道发射器减振优化  

Vibration reduction optimization of electromagnetic rail launchers based on stiffness matching

作　　者：任师达 冯刚[1] 刘少伟[1] 胡静 李腾达 REN Shida;FENG Gang;LIU Shaowei;HU Jing;LI Tengda(College of Air Defense and Anti-Missile,Air Force Engineering University,Xi’an 710051,China;Foundation Department,Rocket Force University of Engineering,Xi’an 710025,China)

机构地区：[1]空军工程大学防空反导学院,西安710051 [2]火箭军工程大学基础部,西安710025

出　　处：《兵器装备工程学报》2023年第4期155-162,共8页Journal of Ordnance Equipment Engineering

基　　金：国防科技基金项目(2201079)。

摘　　要：为更好地解决电磁轨道发射器发射过程中的振动问题,提出了2种减振优化方案。一种是双层复合绝缘体结构设计;另一种是轴向多刚度弹性支撑结构设计。分别建立轨道-弹性支撑结构模型,分析绝缘体结构的力学特性,分析轨道-弹性支撑结构的刚度匹配关系。基于响应面法进行刚度匹配实验,建立了响应面模型,分析变量灵敏度,根据刚度匹配得到双层复合绝缘体的最优弹性模量组合;基于模态分析和发射器共振产生情况,设计了三段式轴向多刚度弹性支撑结构。分别对2种优化方案的减振效果进行评估。研究结果表明,上述2种减振方案均增强了发射器的结构刚度,有效减轻了轨道振动。In order to better solve the vibration problem of an electromagnetic rail launcher in the launch process,this paper proposes two vibration reduction optimization schemes.One is the structural design of a double-layer composite insulator;the other is the design of axial multi-stiffness elastic support structure.For the two schemes,rail-elastic support structure models are established respectively,mechanical characteristics of the insulator structure are analyzed,and stiffness matching of the rail-elastic support structure is discussed.Based on the response surface method,a stiffness matching experiment is carried out,and a response surface model is established.The variable sensitivity is then analyzed,and the optimal elastic modulus combination of the double-layer composite insulator is obtained according to the stiffness matching.Based on the modal analysis and the resonance of the launcher,a three-stage axial multi-stiffness elastic support structure is designed.The damping effects of the two optimization schemes are evaluated respectively.The results show that the above two vibration reduction schemes enhance the structural stiffness of the launcher and effectively reduce rail vibration.

关 键 词：电磁轨道发射器 刚度匹配 响应面法 减振性能 

分 类 号：TJ768.2[兵器科学与技术—武器系统与运用工程]