Analysis of Arming Mechanism in Electronic-Mechanical Arm Fire Device

Myunggeun Ahn; Joo-young Jin; Seung-gyo Jang

doi:10.6108/KSPE.2025.29.1.049

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2025 Vol.29, Issue 1 Preview Page Next Page

TECHNICAL PAPERS

Analysis of Arming Mechanism in Electronic-Mechanical Arm Fire Device 전자-기계식 점화안전장치 장전 메커니즘 분석

28 February 2025. pp. 49-57

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Abstract

This study investigates the current waveform behavior of an Electronic-Mechanical Arm Fire Device under varying temperature and arming voltage conditions. A comparative analysis using inspection equipment revealed that arming time increases with higher temperatures and decreases at lower temperatures. Current waveforms were recorded across different arming voltage and temperature conditions. Results showed that lower temperatures and higher voltages reduce arming time, while higher temperatures and lower voltages extend it. Additionally, the resistance of the torque motor was examined at room, high, and low temperatures during arming voltage application. Findings confirmed that increased resistance at higher temperatures reduces current flow, resulting in longer arming times. In summary, this study highlights the significant influence of temperature on arming time, demonstrating that thermal conditions critically affect device performance.

Keywords

Pyrotechnic Mechanical Device

One-shot Device

Electronic-Mechanical Arm Fire Device

Arming Mechanism

본 연구에서는 전자-기계식 점화안전장치의 다양한 온도 조건과 장전 전압 조건에서 전류 파형 분석을 수행하며 점검장비를 이용한 장전 시간 계측 결과와 비교하여 장전 메커니즘을 연구한다. 점검장비로 계측한 장전시간 결과 높은 온도에서 장전 시간이 증가하고 낮은 온도에서 감소하였다. 이를 분석하기 위해 장전 전압과 온도 조건에 따라 전류 파형을 계측하여 장전 시간을 분석한다. 저온 환경과 높은 전압인가 조건에서 장전 시간은 감소하며 고온 환경과 낮은 전압조건에서 장전시간이 증가하는 경향이다. 온도조건에 따른 장전 시간 경향 분석을 위해 상온, 고온, 저온 조건에서 장전 전압 인가 시 토크모터 저항 값을 분석하여, 높은 온도에서 저항이 증가하고 전류는 감소하여 장전시간이 증가함을 확인하였다. 결과적으로 장전 전압이 일정할 때, 온도 환경에 따라 장전 시간 차이를 확인하였다.

키워드

파이로 장치

원샷 디바이스

전자-기계식 점화안전장치

장전 메커니즘

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Information

Publisher :The Korean Society of Propulsion Engineers
Publisher(Ko) :한국추진공학회
Journal Title :Journal of the Korean Society of Propulsion Engineers
Journal Title(Ko) :한국추진공학회지
Volume : 29
No :1
Pages :49-57
Received Date : 2024-06-11
Revised Date : 2024-10-15
Accepted Date : 2024-10-20
DOI :https://doi.org/10.6108/KSPE.2025.29.1.049

Journal of the Korean Society of Propulsion Engineers ISSN:1226-6027(Print) 2288-4548(Online) 한국추진공학회지

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