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J. KIMS Technol > Volume 21(6); 2018 > Article
Journal of the Korea Institute of Military Science and Technology 2018;21(6):784-789.
DOI: https://doi.org/10.9766/KIMST.2018.21.6.784   
An Experimental Method for Obtaining Aerodynamic Roll Damping Coefficients of Fin Stabilized Projectile from Telemetry Experiments
Jinseok Kim, Gyeonghun Kim, Jaehyun Choi
The 5th Research and Development Institute, Agency for Defense Development
텔레메트리 시험을 이용한 날개안정형 발사체의 회전감쇠 공력계수 실험적 산출 방법
김진석, 김경훈, 최재현
국방과학연구소 제5기술연구본부
Abstract
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.
Key Words: Roll Damping Coefficient, Projectile, Fin Stabilized Projectile
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