Journal of the Korean Society of Propulsion Engineers (한국추진공학회지)

The Korean Society of Propulsion Engineers (한국추진공학회)
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Development of Numerical Model for Igniter and Study on Initial Ignition of Interior Ballistics

강내탄도의 점화기 해석 모델 개발 및 초기 점화 연구

  • 성형건 (인하대학교 항공우주공학과) ;
  • 장진성 (인하대학교 항공우주공학과) ;
  • 이상복 (인하대학교 항공우주공학과) ;
  • 최동환 (인하대학교 항공우주공학과) ;
  • 노태성 (인하대학교 항공우주공학과)
  • Received : 2011.11.29
  • Accepted : 2012.12.26
  • Published : 2013.04.01
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Abstract

A numerical model of the igniter for the interior ballistics has been developed by combining lumped parameter model with the theoretical equation of orifice. With the developed model of the igniter, the numerical study on characteristics of the interior ballistics has been conducted according to the igniter configuration in terms of igniter length, side hole diameter, and distribution of side holes. As results of the calculation of the pressure difference between the breech and shot base, the low-cycle oscillations have been influenced by the igniter length, while the high-cycle oscillations have been affected by the side hole diameter and the distribution of side holes.

Lumped parameter model에 오리피스의 이론식을 결합하여 강내탄도의 점화기 해석 모델을 개발하였다. 이 개발된 점화기 해석 모델을 이용하여 점화기 형상인 길이, 직경, 주입구 분포에 따른 강내탄도의 특성을 분석하였다. 포미와 초기탄저의 압력차의 결과로서 점화기 길이는 저주기 진동에 영향을 미치는 것으로 나타났고, 점화제 주입구 직경과 주입구 분포는 고주기 진동에 영향을 주는 것으로 나타났다.

Keywords

References

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