Identifying Sensitive Components and Analyzing Reliability Process to Output Characteristic for an EAFD Circuit System According to Changes of Internal Component Values

Lim, Tae Heung; Byun, Gangil; Jang, Seung-gyo; Back, Seungjun; Son, Youngkap; Choo, Hosung

doi:2018.21.5.697

J. KIMS Technol > Volume 21(5); 2018 > Article

Research Paper

Journal of the Korea Institute of Military Science and Technology 2018;21(5):697-703.
DOI: https://doi.org/10.9766/KIMST.2018.21.5.697

Identifying Sensitive Components and Analyzing Reliability Process to Output Characteristic for an EAFD Circuit System According to Changes of Internal Component Values

Tae Heung Lim, Gangil Byun, Seung-gyo Jang, Seungjun Back, Youngkap Son, Hosung Choo

¹School of Electronic Electrical Engineering Hongik University
²School of Electrical & Computer Engineering, UNIST
³The 4th Research and Development Institute, Agency for Defense Development
⁴Reliability Education and Research Center, Andong National University
⁵Department of Mechanical & Automotive Engineering, Andong National University

전자식 점화안전장치 회로 시스템 내부 소자 변화에 따른 민감 소자 확인 및 출력 특성에 대한 신뢰성 분석 프로세스

임태흥, 변강일, 장승교, 백승준, 손영갑, 추호성

¹홍익대학교 전자전기공학과
²UNIST 전기전자컴퓨터공학부
³국방과학연구소 제4기술연구본부
⁴안동대학교 신뢰성교육연구센터
⁵안동대학교 기계자동차공학과

Abstract

In this paper, we analyzed the operation of the ignition circuit for electronic arm and fire device(EAFD), and investigated the sensitive elements of the circuit system. For reliability analysis, the EAFD ignition circuit was modeled using the PSpice simulation tool, and the output results of the circuit were examined by changing the tolerance of each circuit element. Monte Carlo simulation was used by maintaining the values of the observed sensitive elements at ${pm}10%$ of the original values and adjusting the values of the other components according to a random distribution. The histogram results of the output peak currents and pulse widths were represented by Weibull and Burr type XII function fittings in three cases(element values are +10 %, 0 %, -10 % of original). For the output peak currents, mean values were 1.0028, 1.0034, and 1.0050, where the variance values were calculated as 0.0398, 0.0396, and 0.0290 using the Weibull function fitting, respectively. For pulse widths, the mean values of 0.9475, 0.9907, and 1.0293 with the variance values of 0.0260, 0.0251, and 0.0238 were obtained using the Burr Type XII function fittings.

Key Words: EAFD, Reliability Analysis of Circuit System, Ouput Characteristics of the EAFD Circuit, Analysis of Sensitive Components