引信微机电安全系统的可靠性分析与改进

doi:10.3969/j.issn.1000-1093.2017.04.006

兵工学报 ›› 2017, Vol. 38 ›› Issue (4): 664-672.doi: 10.3969/j.issn.1000-1093.2017.04.006

引信微机电安全系统的可靠性分析与改进

涂宏茂^1,2，孙志礼¹，钱云鹏^1,2，刘勤^1,2

(1.东北大学机械工程与自动化学院, 辽宁沈阳 110819； 2.中国兵器科学研究院, 北京 100089)

收稿日期:2016-09-20 修回日期:2016-09-20 上线日期:2017-06-06
通讯作者: 孙志礼（1957—），男，教授，博士生导师 E-mail:zhlsun@mail.neu.edu.cn
作者简介:涂宏茂（1981—），男，博士研究生。 E-mail: bjthm@126.com
基金资助:
国家国防科技工业局技术基础科研项目(Z092014B001)

Reliability Analysis and Improvement of MEMS-based Safety and Arming Device in Fuze

TU Hong-mao^1,2, SUN Zhi-li¹, QIAN Yun-peng^1,2 , LIU Qin^1,2

(1.College of Mechanical Engineering and Automation, Northeastern University, Shenyang 110819, Liaoning, China;2.Ordnance Science and Research Academy of China, Beijing 100089, China)

Received:2016-09-20 Revised:2016-09-20 Online:2017-06-06

摘要/Abstract

摘要： 在引信微机电（MEMS）安全系统结构设计与仿真分析的基础上，对其开展了量化的工作可靠性水平评估，并进行设计方案的改进和试验验证。针对小口径弹药引信的工作环境特点，给出MEMS安全系统的设计方案和关键结构的设计要求，并利用有限元仿真分析初步确定设计方案的可行性。同时，为在结构仿真分析的基础上开展定量的可靠性分析，提出基于有限元法的结构可靠性仿真方法及其实现流程，并以ANSYS软件为例提出CAE程序的集成方法和实现步骤，解决可靠性分析程序对有限元软件工具的自动调用问题。综合考虑载荷、结构尺寸和材料参数等因素的随机性，分析关键结构的可靠性水平和主要的影响因素，并据此给出了增加电推冲器装药量、控制关键尺寸的变异系数和取消闭锁机构等改进建议。加工MEMS安全系统的实物样机，并通过试验验证了该设计方案的可行性。

关键词: 兵器科学与技术, 引信微机电安全系统, 可靠性分析, 可靠度, 灵敏度

Abstract: The quantitative reliability assessment of a MEMS-based safety and arming (MEMS S&A) device in fuze is performed based on the structural design and simulation. The structural design of MEMS S&A is then improved and verified through experiment. A primary design of MEMS S&A device is presented. The functional requirements of the key structures in the device are proposed according to the operating environment of small-caliber munition fuzes. Finite element (FE) simulation is adopted to evaluate the design. The structural reliability simulation method based on FE simulation and its implementation procedures are proposed, which can help to quantify the reliability of the device. An efficient CAE software integration method using ANSYS as an example is presented to facilitate the repetitive FE-based calculations. The reliability of the key structures of the device is evaluated, where the randomness of loading, geometric parameters and material properties are taken into account. The significant factors are also identified for further structural improvements. A prototype of MEMS-based S&A device is manufactured, which is delivered to centrifugal experiments. Experimental results demonstrate the feasibility of the design. Key

Key words: ordnancescienceandtechnology, fuzeMEMS-basedsafetyandarmingdevice, reliabilityanalysis, reliability, sensitivity

中图分类号:

涂宏茂，孙志礼，钱云鹏，刘勤. 引信微机电安全系统的可靠性分析与改进[J]. 兵工学报, 2017, 38(4): 664-672.

TU Hong-mao, SUN Zhi-li, QIAN Yun-peng , LIU Qin. Reliability Analysis and Improvement of MEMS-based Safety and Arming Device in Fuze[J]. Acta Armamentarii, 2017, 38(4): 664-672.

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引信微机电安全系统的可靠性分析与改进

Reliability Analysis and Improvement of MEMS-based Safety and Arming Device in Fuze

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