동적 방사선투과검사를 이용한 지상연소시험 기술개발

An Application of Dynamic Radioscopy Technique to Static Firing Test

  • 발행 : 2006.09.30

초록

본 연구는 소형 로켓모터의 지상연소시험 시 동적 방사선투과검사를 이용하여 로켓모터의 내부 연소현상을 실시간으로 관측하는 시험 기술을 개발하고자 하였다. 이를 위해 자체 설계/제작한 영상촬영상자와 300 kV급 X선 발생장치를 사용하여 지상연소시험을 실시하였고, 연소 중 발생되는 진동과 소음 등의 외부 환경인자로부터 영상의 안정화와 장비보호를 위하여 방진/방음 장치를 개발하여 적용하였다. 시험결과, 측정부위의 진동크기가 장비의 정상운용을 위한 허용한계 이하로 측정되었으며, 연소 중 로켓모터 내부형상과 추진제 연소면의 변화를 명확히 관찰할 수 있었다.

Dynamic Radioscopy technique was developed to observe internal phenomena of motors during firings. For use of this technique, generator and image box consisting of conversion screen, mirror, and video camera were designed and fabricated at our laboratory, and static firing tests were conducted to small motors. Protection devices against vibration and noise induced from during combustion were also made and their performances were evaluated with reference to the vibration criteria. Test results have shown that the vibration levels at concerned points were measured less than vibration criteria, and the internal phenomena during firings were also observed clearly.

키워드

참고문헌

  1. R. S. Fry, "Solid Propellant Subcale Buring Rate Analysis Methods for U.S. and selected NATO facilities," CPIA CPTR 75, 2002
  2. R. S. Fry, "Solid Propellant Test Motor Scaling," CPIA CPTR 73, 2001
  3. D. J. Rogerson, "Dynamic Real Time Radioscopy of Space Shuttle Reusable Solid Rocket Motor during Static Firing," AIAA 95-2727, 1995
  4. M. G. Anderson, "Real-Time Radiography Support for Titan LAM," AIAA 92-3823, 1992
  5. B. Lemberger, J. Sauvel, " Inner View of Solid Rocket Motor during Static Firing," AIAA 91-1949, 1991
  6. Hal Amick, "On generic Vibration Criteria for Advanced Technology Facilities," Jr. of the Institute of Environmental Sciences, Vol. XI, No. 5, Sep/Oct. 1977, pp.35-44