Journal of the Korean Society of Propulsion Engineers (한국추진공학회지)

The Korean Society of Propulsion Engineers (한국추진공학회)
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Study on Aging Characteristics of Thru-Bulkhead Initiator

격벽착화기 노화특성 연구

  • Received : 2020.01.08
  • Accepted : 2020.03.05
  • Published : 2020.04.01
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Abstract

After the accelerated aging, the bulkhead initiator using high explosives was carried out to verify aging characteristics. The Thru-Bulkhead Initiator operates by transmitting shock-wave generated from micro-initiator to the acceptor and the ignition explosives through the bulkhead. In order to evaluate the life-time of the product, the accelerated aging condition was set according to the life-time, and the ignition performance of the sample was measured every 10 cycles by measuring the delay time and the maximum pressure through the 10cc closed bomb test. In addition, variance analysis was used to determine aging.

고폭화약을 이용한 격벽형 착화기를 가속노화 후 성능시험을 수행하여 노화특성을 확인하였다. 격벽형 착화기는 마이크로 착화기에서 발생한 충격파가 격벽을 통해 엑셉터 화약과 점화 화약에 전달되어 동작한다. 제품에 대한 수명평가를 위해 수명연한에 따른 가속노화 조건을 설정하고, 매 주기마다 시료에 대한 점화 성능을 10cc 밀폐용기 시험을 통해 작동지연시간과 최대압력을 측정하여 요구규격 만족여부를 확인하였고, 분산분석을 통해 노화여부를 판단하였다.

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References

  1. Jang, S.G., Kang, W.K. and Cha, H.S., "Design and Reliability Analysis of the Through-Bulkhead Initiation Module Using CH-6, " Proceeding of the 32nd Korean Society of Propulsion Engineers Conference, pp. 327-330, May., 2009.
  2. Kang, W.K., Kim, D.S., Jung, W.S. and Jang, S.G., "Study on miniaturizing Thru Bulkhead Initiato,r" Proceeding of the 49th Korean Society of Propulsion Engineers Conference, Busan, Korea, pp. 106-107, Nov., 2017.
  3. Kim, B.H., Kang, W.K., Jang, S.G. and Yoh, J.I., "Hydrodynamic Analysis on Shock-induced Detonation in Pyrotechnic Initiator," Journal of the Korean Society of Propulsion Engineers, Vol. 20, No. 5, pp. 19-30, 2016. https://doi.org/10.6108/KSPE.2016.20.5.019
  4. Jang, S.G., Hwang, J.M. and Lee, M.H., "THROUGH BULKHEAD INITIATOR," 1020160017445, 15 Feb. 2016.
  5. Kim, K.H., Kang, W.K, Lee, C.M., and Jang, S.G., "Initiator Development using LEEFI," Proceeding of the 51h Korean Society of Propulsion Engineers Conference, Busan, Korea, pp. 146-147, Dec., 2018.
  6. Jang, S.G., Kim, J.H, Ryu, B.T., and Hwang, J.M., "Arrhenius Kinetic Constants Analysis of $BKNO_3$ under Accelerated Aging," Journal of the Korean Society of Propulsion Engineers, Vol. 20, No. 4, pp. 34-39, 2016. https://doi.org/10.6108/KSPE.2016.20.4.034
  7. Paik, J.G., Ryu, B.T., Kim, J.H., Ahn, G.H. and Lee, S.B., "Characterization of Long Term Stored $BKNO_3$," Proceeding of the 44th Korean Society of Propulsion Engineers Conference, Busan, Korea, pp. 388-390, May, 2015.
  8. Jang, S.G., and Ryu, B.T., “Evaluation of the Aging Effects on the Performance of the Pyrotechnic Igniter,” Journal of the Korean Society of Propulsion Engineers, Vol. 1, No. 2, pp. 91-102, 1997.
  9. Paik, J.G., Ryu, B.T. and Kwon, M.R., "A Study on Acceleration Aging Characteristics of $B-KNO_3$ Igniter," Korean Chem. Eng. Res., Vol. 52, No. 2, pp. 166-174, 2014. https://doi.org/10.9713/kcer.2014.52.2.166
  10. Dr. Barry T. Neyer, Lloyd Cox, Terry Stoutenborough and Robert Tomasoski, "HNS-IV Explosive Properties and Characterization Tests," 39th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit Huntsville, AIAA-2003-5138, July 20-24, 2003.
  11. Kim, Y.C., Park, J.S., Kwon, K.T. and Yoh, J.I., “An Extraction of Detailed Isoconversional Kinetic Scheme of Energetic Material using Isothermal DSC,” Journal of the Korean Society of Propulsion Engineers, Vol. 20, No. 2, pp. 46-55, 2016. https://doi.org/10.6108/KSPE.2016.20.2.046
  12. "chap.12. Analysis of Variance: ANOVA, "retrieved 29 Aug. 2019 from http://contents.kocw.net/kocw