摘要微机电技术(Micro-Electro-Mechanical Systems,MEMS)的发展带来了引信技术发展的新机遇。安全系统是引信的重要组成部分,对整个武器系统发挥效用起着关键作用。本文首先介绍了MEMS技术在引信中的应用,阐述了MEMS安全保险装置的研究背景和意义,以及在国内的发展现状。其次本文对一种微小型引信的安全保险机构的设计思路进行了介绍,并详细计算了基于后坐环境的最大应力,以及离心环境中机构解除保险所需的时间。接下来对所设计的安全保险机构进行了ANSYS仿真,通过理论计算与仿真结果的比较,验证了所设计的机构能够满足最初的技术要求。最后针对在设计过程中的不足对机构进行了一点改进。63565
毕业论文关键词 微机电系统 引信 安全与解除保险装置 有限元分析
毕业设计说明书(论文)外文摘要
Title Design of a miniature fuze safety mechanism
Abstract The development of MEMS technology is bringing fuze technology’s new opportunity. The security system is one of the important parts of the fuze, and is the key of the whole arm to go into the most effect. Firstly, the application of MEMS technology in the fuze is introduced, and the background and significance of the research, and the development of the status is also discussed. Secondly, the design idea of a kind of miniature fuse safety mechanism is introduced in this paper. And the maximum stress based on setback-activated environment and the time required to lift the insurance mechanism in spin-activated environment are detailed calculated. It carried on the modeling and simulation with the ANSYS software to MEMS fuze safety mechanism.
By comparing theoretical calculation and simulation results, the conclusion that the design of the mechanism can meet the original requirements is verified. Finally, aiming at the deficiency in the design process of the structure was a little improvement.
Keywords MEMS fuze safety & arming device FEA
1 绪论 1
1.1 本文的研究领域及研究背景 1
1.1.1 MEMS技术的特点 1
1.1.2 引信安全系统的发展历程 2
1.1.3 MEMS技术在引信中的应用 3
1.1.4 微机电安全与解除保险装置的研究背景及意义 4
1.2 MEMS安全保险装置的国内发展状况 4
1.3 本文主要研究工作 5
2 微机电引信安全与解除保险装置总体设计 6
2.1 引信安全与解除保险装置的设计准则 6
2.2 微机电引信安全与解除保险装置的初步设计 6
2.2.1 微机电引信安全与解除保险装置的技术要求 6
2.2.2 微机电引信安全与解除保险装置的设计思路与作用过程 6
2.3 引信微弹簧机构理论推导与选择 8
2.3.1四种微弹簧的理论推导 8
2.3.2 微弹簧的选择 10
2.4 微机电引信安全与解除保险装置的机构设计 10
2.4.1 后坐保险机构的设计 10
2.4.2离心保险结构的设计