Browse > Article
http://dx.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  

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)
Publication Information
Journal of the Korea Institute of Military Science and Technology / v.21, no.6, 2018 , pp. 784-789 More about this Journal
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.
Keywords
Roll Damping Coefficient; Projectile; Fin Stabilized Projectile;
Citations & Related Records
연도 인용수 순위
  • Reference
1 C. H. Ng and S. Han, "Wind Tunnel Spin Data Reduction to Obtain Aerodynamic Spin Damping Coefficients by Using Nonlinear Equation of Motion," U.S. Army Armament Research, Development and Engineering Center, 1992.
2 R. H. Whyte, "An Updated Version of the Spinner Computer Program," U.S. Army Armament Research, Development and Engineering Center, 1973.
3 "PRODAS V3 User Manual," Arrow Tech, pp. 3-27, 2010.
4 J. Sahu, "Computations of Unsteady Aerodynamics of a Spinning Body at Transonic Speeds," U.S. Army Research Laboratory, 2009.
5 P. Chusilp, W. Charubhun and N. Nutkumhang, "A Comparative Study on 6-DOF Trajectory Simulation of a Short Range Rocket using Aerodynamic Coefficients from Experiments and Missile DATCOM," The Second TSME International Conference on Mechanical Engineering, pp. 2-5, 2011.
6 "DOT Users Manual," VR&D, Inc., pp. 17-20, 1995.
7 J. S. Kim, M. K. Park, S. J. Shin, D. P. Han and J. H. Woo, "Remote Measurement Method of Internal and External Ballistic Records of Artillery Ammunition," Patent Number 10-1837350, Korean Intellectual Property Office, 2018.
8 R. L. McCoy, "Modern Exterior Ballistics," Schiffer Publishing Ltd., pp. 33-35, 1999.
9 A. Savitzky and M. J. Golay, "Smoothing and Differentiation of Data by Simplified Least Squares Procedures," Analytical Chemistry, pp. 1627-1639, 1964.