DOI QR코드

DOI QR Code

Propellant Characteristics used for a Rocket-Assisted Projectile with Aluminium Contents

알루미늄 함량에 따른 로켓보조추진탄용 추진제 특성

  • Received : 2019.06.07
  • Accepted : 2019.08.08
  • Published : 2019.10.01

Abstract

In this report, the process characteristic(viscosity), mechanical properties, combustion characteristics, ground and flight test results of propellants used for a rocket-assisted projectile are described according to several aluminum contents. As the aluminum content increased, initial viscosity decreased, viscosity build-up accelerated, and combustion rate and pressure exponent decreased. In the ground fire test, the total impulse of the rocket-assisted projectiles containing 10 wt% of aluminum were 5% higher than that of the rocket-assisted projectiles containing 2 wt% and 18 wt% of aluminum. The motor efficiency compared to the theoretical performance was 85.6% with 18 wt% of aluminum, the lowest value among the propellant compositions.

본 논문은 알루미늄 함량 변화에 따른 로켓보조추진탄(RAP) 용 추진제의 공정특성(점도), 기계적 물성, 연소특성, 지상 및 비행시험 결과에 관하여 기술하였다. 알루미늄 함량이 증가되면 초기점도는 감소하고 점도 build-up은 빨라지며 연소속도 및 압력지수가 감소하는 것을 확인하였다. 지상연소시험에서는 알루미늄이 10 wt% 함유된 RAP이 알루미늄이 2 wt%, 18 wt% 함유된 RAP에 비해 총역적이 약 5% 높았으며, 이론성능 대비 모터 효율은 알루미늄이 18 wt% 함유된 조성이 85.6%로 가장 낮았다.

Keywords

References

  1. Na, J.C., Baek, I.S., Kim, Y.H., and Roh, U.J., "북한의 미사일 위협에 대비한 우리의 탄약기술 동향과 발전방향," Korea Defense Industry Association, Defense & Technology, Vol. 400, pp. 80-99, 2012.
  2. Hwang, J.S., "155미리 사거리연장탄의 개발현황 및 발전추세," Korea Defense Industry Association, Defense & Technology, Vol. 160, pp. 54-57, 1992.
  3. Park, S.H., Hwang, J.S., and Kim, C.K., "A Study on the Low Burning Rate Composite Solid Propellant," Journal of The Korean Society of Propulsion Engineers, KSPE Fall Conference, pp. 27-37, 1994.
  4. Kim, K.M., Cho, J.H., and Jeong, D.J., "Study on Composite Solid Propellants for Rocket Assisted Projectile," The Korean Society For Aeronautical and Space Sciences, Vol. 11, pp. 1081-1086, 2010.
  5. Gurun, B.C., "Numerical Study of Combustion Phenomena with Spin Effect in a Composite Solid Propellant Rocket," Master's Thesis, Aerospace and System Engineering Division of Aerospace Engineering, KAIST University, DaeJeon, Korea, 2013.
  6. Yim, Y.J., "Performance Prediction of Aluminized High Energy Propellant," The Korean Society of Propulsion Engineers, KSPE Fall Conference, pp. 121-127, 1996.
  7. James, E.D., "Analysis of the Performance of the 155 mm M864 Base BURN Projectile," BRL TR 3083, 1990.
  8. Yim, Y.J., Hwang, K.S., “The Families and Selection of the Solid Propellants,” The Korean Society For Aeronautical and Space Sciences, Vol. 22, No. 6, pp. 147-154, 1994.
  9. Park, S.J., Choi, S.H., Won, J.U., Park, J.H., and Park, E.Y., "Solid Propellants for Propulsion System Including a Yellow Iron Oxide," The Korean Society of Propulsion Engineers, KSPE Spring Conference, pp. 498-503, May 2017.
  10. Yim, Y.J., Park, E.J., Kwon, T.H., Choi, S.H., “Effect of AP Particle Size on the Physical Properties of HTPB/AP Propellant,” The Korean Society of Propulsion Engineers, Vol. 20, No. 1, pp. 14-19, 2016. https://doi.org/10.6108/KSPE.2016.20.1.014
  11. Jain, S., Nandagopal, S., Singh, P.P., Radhakrishnana, K.K., and Bhattacharty, B., “Size and Shape of Ammonium Perchlorate and their Influence on Properties of Composite Propellant,” Defence Science Journal, Vol. 59, No. 3, pp. 294-299, 2009. https://doi.org/10.14429/dsj.59.1523
  12. Jang, M.W., Kim, T.K., Han, H.J., Yun, J.H., and Son, H.I., “A Study on Property of NEPE System Propellant with Respect to the Size of RDX,” Journal of the Korean Society of Propulsion Engineers, Vol. 22, No. 3, pp. 40-45, 2018. https://doi.org/10.6108/KSPE.2018.22.3.040
  13. Lee, S.Y., Ryu, T.H., Hong, M.P., and Lee, H.J., “Study on the Enhancement of Burning Rate of HTPB/AP Solid Propellants,” Journal of the Korean Society of Propulsion Engineers, Vol. 21, No. 4, pp. 21-27, 2017.
  14. Hwang, K.Y., Yim, Y.J., and Ham, H.C., “Effects of Aluminum Oxide Particles on the Erosion of Nozzle Liner for Solid Rocket Moters,” Journal of the Korean Society for Aeronautical and Space Sciences, Vol. 34, No. 8, pp. 95-103, 2006. https://doi.org/10.5139/JKSAS.2006.34.8.095
  15. William, H.M., "Solid Rocket Motor Performance Analysis And Prediction," NASA SP-8039, 1971.