Journal of the Korean Society for Aeronautical & Space Sciences (한국항공우주학회지)

The Korean Society for Aeronautical and Space Sciences (한국항공우주학회)
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Assessment of Crashworthiness Performance for Fuel Tank of Rotorcraft

회전익 항공기용 연료탱크 내추락 성능 시험평가

  • Received : 2010.05.06
  • Accepted : 2010.07.02
  • Published : 2010.08.01
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Abstract

Fuel tanks for rotorcraft have a great influence on the survivability of crews. The philosophy of crashworthy rotorcraft design evolved from the long term effort of the US Army. US army established MIL-DTL-27422D for specifying detail requirements related to crash resistant fuel tank especially for military rotorcraft to prevent post crash fire which is the greatest threat to life in rotorcraft crash. Crashworthiness of the rotorcraft fuel tank could be guaranteed through the crash impact tests which are specified in the MIL-DTL-27422D. Fuel tanks for Korea Helicopter Program have been developed and tested according to MIL-DTL-27422D with minor modifications of flexible fittings. The present study shows some results of the mandatory crash impact tests of the fuel tanks to verify their performances.

회전익항공기 연료탱크는 추락시 승무원의 생존성과 직결되는 구성품이다. 1950년대부터 미육군에서는 항공기 추락 후 화재에 의한 사상자를 줄일 수 있는 방안으로 내충돌성 연료탱크에 적합한 특성을 갖는 소재를 개발하기 위해 다양한 노력을 기울여왔다. 그 결과로 1961년에 MIL-T-27422A라는 항공기 연료탱크 설계규격이 처음 등장하였고, 1970년부터 2002년까지 수회의 개정을 거쳐 2007년 MIL-DTL-27422D라는 미군사 규격으로 발전되었다. 한국형 기동헬기의 연료탱크는 미군사규격(MIL-DTL-27422D)에 따라 개발 및 성능인증시험이 수행되었으며, 연료탱크의 내추락 성능은 미군사 규격에 구체화된 충돌/충격시험으로 검증되도록 규정되어 있다. 본 연구는 한국형기동헬기 연료탱크의 내추락 성능 검증을 위해 수행된 충돌/충격시험 결과를 제시하고 있다.

Keywords

Acknowledgement

Supported by : 지식경제부

References

  1. FAA, 1994, "Rotorcraft Crashworthy Airframe and Fuel System Technology Development Program", DOT/FAA/CT-91/7, Final Report.
  2. FAA, 2002, "A Study of Helicopter Crash-Resistant Fuel Systems", DOT/FAA/AR-01/76, Final Report.
  3. Karen E. Jackson, Edwin L. Fasanella, and Karen H. Lyle, 2006, "Crash Certification by Analysis - Are We There Yet?", American Helicopter Society 62nd Annual Forum, Phoenix, AZ.
  4. "Military Specification, Tank, Fuel, Crash-Resistant, Aircraft", MIL-T-27422A, 25 March 1964.
  5. "Military Specification, Tank, Fuel, Crash-Resistant, Aircraft", MIL-T-27422B, 24 February 1970.
  6. "Detail Specification for the Tank, Fuel, Crash-Resistant, Ballistic-Tolerant, Aircraft", MIL-DTL-27422C, 14 January 2002.
  7. "Detail Specification for the Tank, Fuel, Crash-Resistant, Ballistic-Tolerant, Aircraft", MIL-DTL-27422D, 30 January 2007.

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  3. Analysis of Crash Load in Crash Impact Test for Fuel Tank of Rotorcraft vol.16, pp.6, 2015, https://doi.org/10.5762/KAIS.2015.16.6.3736
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