논문 해외 국제전문학술지(SCI급) The development of the micro-solid propellant thruster array with improved repeatability
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2012-08
- 저자명 Daeban Seo, Jongkwang Lee, Sejin Kwon
- 학술지명 IOPscience
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 3
- 연구분야 공학 > 항공우주공학
홈페이지첨부 파일
논문 초록 (Abstract)
This paper presents the development of a micro-solid propellant thruster array with improved repeatability. The repeatability and low performance variation of each thruster unit with a high ignition success rate is essential in micro-solid propellant thruster array. To date, the study on the improvement of the repeatability has not yet been reported. As the first step for this study, we propose a new type of micro igniter, using a glass wafer called the heater-contact micro igniter. This igniter is also designed to improve the ignition characteristics of a glass-based micro igniter. The prototype of the igniter array is designed and fabricated to establish its fabrication process and to conduct its performance evaluation. Through the firing test, the performance of the heater-contact micro igniter is verified. The 5 × 5 sized micro-solid propellant thruster array is designed and fabricated applying the developed heater-contact igniter. The measured average thrust of each thruster unit is 2.542 N, and calculated standard deviation is 0.369 N. The calculated average total impulse and its standard deviation are 0.182 and 0.04 mNs, respectively. Based on these results, the improvement of repeatability is verified. Finally, the ignition control system of the micro-thruster array is developed.