Journal of the Korean Society of Propulsion Engineers (한국추진공학회지)

The Korean Society of Propulsion Engineers (한국추진공학회)
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Modeling of Erosive Burning for Fluid-Structure Integration Analysis of Solid Rocket Motor

고체 로켓 모터 유동-구조 연성 해석을 위한 침식연소 모델링

  • Lee, Jeongsub (The 4th R&D Institute - 1st Directorate, Agency for Defense Development) ;
  • Jin, Jungkun (The 4th R&D Institute - 1st Directorate, Agency for Defense Development) ;
  • Kim, Shinhoe (The 4th R&D Institute - 1st Directorate, Agency for Defense Development) ;
  • Jung, Gyoodong (The 4th R&D Institute - 1st Directorate, Agency for Defense Development)
  • Received : 2016.04.16
  • Accepted : 2016.07.12
  • Published : 2016.08.01
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Abstract

In this research, the modeling of erosive burning and analysis of effective parameters were carried out for the application of fluid-structure integration analysis. The manufacture, test, and analysis of erosive burning motors were carried out to estimate the erosive burning applying Lenoir & Robillard model considering effective parameters. The erosive burning phenomenon was detected from experimental results. Erosive burning model and its effective parameters were evaluated and analyzed considering existence of aluminum in propellant, relationship among erosive burning coefficients according to characteristic length, effect of grain initial temperature. The erosive burning model was applied to the fluid-structure integration analysis, and the estimated results were close to the experimental results.

본 논문에서는 고체 로켓 모터의 유동-구조 연성 해석을 위해서 추진제 침식 연소 모델링 및 영향인자에 대한 분석을 수행하였다. Lenoir & Robillard 모델식을 적용해 침식연소 현상을 예측하기 위해서 침식연소에 영향을 줄 수 있는 인자를 고려하여 침식연소 모사모터의 제작, 시험 및 분석을 수행하였다. 시험 결과 침식연소가 이루어짐을 확인하였으며, 이를 바탕으로 알루미늄 입자의 포함 여부, 특성 길이에 따른 침식연소 상수의 연관성, 추진제 초기 온도 영향성 등을 고려하여 침식연소 모델과 영향인자에 대해 분석하였다. 확보한 침식연소 모델을 적용하여 유동-구조 연성 해석을 수행하였으며, 시험 결과와 유사함을 확인하였다.

Keywords

References

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