高g值可见光导引头缓冲系统仿真设计及验证  

Simulation design and verification of high g valuevisible light seeker buffer system

作　　者：胡志栋 张新驰 周祥宇 HU Zhidong;ZHANG Xinchi;ZHOU Xiangyu(College of Mechanical and Electrical Engineering,Northeast Forestry University,Harbin 150040,China)

机构地区：[1]东北林业大学机电工程学院,哈尔滨150040

出　　处：《兵器装备工程学报》2023年第10期25-30,共6页Journal of Ordnance Equipment Engineering

摘　　要：以可见光导引头橡胶垫缓冲减振结构为研究对象,确定橡胶材料的模型公式,建立橡胶垫缓冲减振的理论模型,验证使用ANSYS Workbench稳态和瞬态分析模块仿真分析的可行性;对橡胶垫材料属性进行线性化处理,通过设置不同的减振型式,在18000 g工况下对镜片进行了强度校核,对比分析了减振效果,确定2片减振垫缓冲为最佳方案;用摆锤锤击等效冲击的方法验证了可见光导引头缓冲系统在高g值工况下能够正常工作。根据材料实验得到合适的橡胶参数,弹性模量取6 MPa,泊松比取0.47时,2片减振垫缓冲时镜片的安全系数能够达到4左右,验证了高g值条件下减振垫对光学镜片可靠性的影响,为后续研究奠定基础。This paper takes the rubber cushion damping structure of visible light seeker as the research object,determines the model formula of rubber material,establishes a theoretical model of rubber cushion damping,and verifies the feasibility by using ANSYS Workbench steady-state and transient analysis modules for simulation analysis.The material properties of the rubber pad are linearized,and the strength of the lens is checked under 18000 g working conditions by setting different vibration reduction types.The vibration reduction effect is compared and analyzed,and two vibration reduction pads are determined as the optimal solution for buffering.The method of equivalent impact with a pendulum is used to verify the normal operation of the visible light seeker buffer system under high gvalue conditions.According to the material experiment,appropriate rubber parameters are obtained.When the elastic modulus is taken as 6 MPa and the Poisson’s ratio is taken as 0.47,the factor of safety of the lens can reach about 4 when the two shock absorbers cushion,which verifies the impact of the shock absorbers on the reliability of the optical lens under the condition of high g value,and lays the foundation for subsequent research.

关 键 词：可见光导引头 高G值 橡胶垫 缓冲减振 ANSYS Workbench 

分 类 号：TH136[机械工程—机械制造及自动化]