한국군사과학기술학회지 (Journal of the Korea Institute of Military Science and Technology)

  • 제21권6호
  • /
  • Pages.784-789
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  • 2018
  • /
  • 1598-9127(pISSN)
  • /
  • 2636-0640(eISSN)
한국군사과학기술학회 (The Korea Institute of Military Science and Technology)
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텔레메트리 시험을 이용한 날개안정형 발사체의 회전감쇠 공력계수 실험적 산출 방법

An Experimental Method for Obtaining Aerodynamic Roll Damping Coefficients of Fin Stabilized Projectile from Telemetry Experiments

  • 김진석 (국방과학연구소 제5기술연구본부) ;
  • 김경훈 (국방과학연구소 제5기술연구본부) ;
  • 최재현 (국방과학연구소 제5기술연구본부)
  • Kim, Jinseok (The 5th Research and Development Institute, Agency for Defense Development) ;
  • Kim, Gyeonghun (The 5th Research and Development Institute, Agency for Defense Development) ;
  • Choi, Jaehyun (The 5th Research and Development Institute, Agency for Defense Development)
  • 투고 : 2018.06.08
  • 심사 : 2018.10.05
  • 발행 : 2018.12.05
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초록

Accurate aerodynamic characterization of projectile is crucial for successful development of munition. The aerodynamic characterization of fin stabilized projectile is more difficult than characterization of traditional symmetric ballistic projectile. Instrumented free flight experiments were conducted to quantify rolling behavior of fin stabilized projectile. The instrumented projectiles were launched from a rifled tube and the onboard sensor data were acquired through a telemetry transmitter. Roll rate was measured for fin stabilized projectile by means of an angular rate sensor. And, roll damping coefficients were estimated from onboard sensor data acquired during gun firing and trajectory analysis of mathematical model.

키워드

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Fig. 1. Fin stabilized projectile configuration

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Fig. 2. Onboard recorder configuration

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Fig. 3. Experimental roll rate data of telemetry test

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Fig. 4. Experimental velocity data

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Fig. 5. Experimental roll rate data of telemetry test and smoother filter

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Fig. 6. Roll damping coefficients for initial time

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Fig. 7. Estimated roll damping coefficients

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Fig. 8. Experimental and calculated roll rate data for the first flight telemetry test

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Fig. 9. Experimental and calculated roll rate data for the second flight telemetry test

참고문헌

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