Journal of the Korean Society of Propulsion Engineers (한국추진공학회지)

The Korean Society of Propulsion Engineers (한국추진공학회)
권호 표지
DOI QR코드

DOI QR Code

A Comparison with Thermal Reaction Characteristic of Kevlar/EPDM Internal Insulator by Change of Chamber Pressure

Kevlar/EPDM 내열고무의 압력 변화에 따른 열반응 비교

  • Kang, YoonGoo (The 4th R&D Institute - 1st Directorate, Agency for Defense Development) ;
  • Park, JongHo (Mechanical Engineering, Chungnam National University)
  • Received : 2016.02.10
  • Accepted : 2016.05.05
  • Published : 2016.06.01
Download PDF
⟨ Previous Next ⟩

Abstract

Characteristic of thermal reaction of Kevlar/EPDM internal insulator used in a solid rocket motor chamber was investigated at 1,030 psi, 35.86 s and 1,406 psi, 36.63 s. Surface status after test was similar each other and thermal destruction depth was 4.10 mm and 4.18 mm, respectively. Kinetic constant ${\xi}$, ${\zeta}$ and thermal destruction velocity $V_{TD}$ were also similar. It was concluded that characteristics of thermal reaction of Kevlar/EPDM internal insulator were not affected by change of chamber pressure.

내열고무 성능평가 모사시험장치를 이용하여 고체로켓추진기관 연소관의 내부단열을 위해 사용하는 Kevlar/EPDM 내열고무의 압력변화에 따른 열반응 특성을 비교하였다. 연소실 유효평균압력 및 유효연소시간은 각각 1,030 psi, 35.86 s 및 1,406 psi, 36.63 s이었다. 시험후 시편의 표면 상태는 차이가 없었으며, 열파괴두께는 각각 4.10 mm 및 4.18 mm이었다. 열반응 상수 ${\xi}$, ${\zeta}$ 및 열파괴 속도 $V_{TD}$는 각각 0.7839, -0.1646, 0.1328 및 0.7836, -0.1730, 0.1346이었다. Kevlar/EPDM 내열고무의 열반응 특성은 압력변화에 따른 차이를 보이지 않았다.

Keywords

References

  1. Rajeev, R.S., De, S.K., Anil, B.K. and John, B., "Studies on Thermal Degradation of Short Melamine Fibre Reinforced EPDM, Maleated EPDM and Nitrile Rubber Composites," Polymer Degradation and Stability, Vol. 79, pp. 449-463, 2003. https://doi.org/10.1016/S0141-3910(02)00361-0
  2. Gul, J., "Investigation on Thermal and Ablation Characteristics of EPDM-Filler Composites," University of Engineering and Technology Lahore, Pakistan, Jan. 2010.
  3. Jia, X., Li, G., Yu, Y., Siu, G., Li, Y., Li, P. and Yang, X., "Ablation and Thermal Properties of Ethylene-Propylene-Diene Elastomer Composites Reinforced with Polysulfonamide Short Fibers," Journal of Applied Polymer Science, Vol. 113, pp. 283-289, 2009. https://doi.org/10.1002/app.29470
  4. Sheu, S.M., Chu, H.T. and Chou, J.H., "Exerimental Study of Ablative Materials by Oxyacetylene Flame Flow System," Journal of Propulsion and Power, Vol. 27, No. 5, pp. 1108-1113, 2011. https://doi.org/10.2514/1.B34055
  5. Martin, H.T., "Assessment of the Performance of Ablative Insulators under Realistic Solid Rocket Motor Operating Conditions," PhD Theisis, The Pennsylvania State University, Mechanical Engineening, 2013.
  6. Ahmed, A.F., "Thermal Insulation by Heat Resistance Polymers," Journal of Composite Materials, Vol. 46, No. 13, pp. 1549-1559. https://doi.org/10.1177/0021998311418850
  7. Fackrell, F.N., "Aft Dome Internal Insulation Erosion on Small ICBM Pre-FSD and FSD Stage I Solid Propellant Rocket Motors," 26th AIAA/ASME/SAE/ASEE Joint Propulsion Conference, Orlando, F.L., U.S.A., AIAA 1990-2324, Jul. 1990.
  8. Crump, J.K. and Amy, A.T., "Flight Amplified Erosion of Head End Internal Insulation," 27th AIAA/ASME/SAE/ASEE Joint Propulsion Conference, Sacramento, C.A., U.S.A., AIAA 1991-1851, Jun. 1991.
  9. Romanos, T.S., Nacouzi, G.J. and Payne, G.A., "Estimation of Flight Enhanced Erosion of Booster Internal Insulation," 31th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, Sandiago, C.A., U.S.A., AIAA 1995-3019, Jul. 1995.
  10. McWhorter, B., Ewing, M., Albrechtsen, K., Noble, T. and Longaker, M., "Real-Time Measurements of Aft Dome Insulation Erosion on Space Shuttle Reusable Solid Rocket Motor," 40th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, Fort Lauderdale, F.L., U.S.A., AIAA 2004-3896, Jul. 2004.
  11. Just, C., "Elastomeric Stationary Shell Insulator for Ariane 5 Solid Rocket Motor Nozzle, 4th European Conference for Aerospace Sciences, Saint Petersburg, Russia, Jul. 2011.
  12. Stampfl, E. and Landsbaum, E.M., "Solid Motor Aft Closure Insulation Erosion," 9th AIAA/SAE Propulsion Conference, Las Vegas, N.V., U.S.A., AIAA 1973-1238, Nov. 1973.