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

  • 제18권6호
  • /
  • Pages.728-735
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  • 2015
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  • 1598-9127(pISSN)
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  • 2636-0640(eISSN)
한국군사과학기술학회 (The Korea Institute of Military Science and Technology)
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회전안정탄약의 비행운동 모사장치에 대한 실험적·수치해석적 연구

Experimental and Numerical Studies on a Test Equipment for the Replication of Flight Motions of Spin-Stabilized Ammunition

  • 이영기 ((주)풍산 방산기술연구원) ;
  • 박성택 ((주)풍산 방산기술연구원) ;
  • 송이화 ((주)풍산 방산기술연구원) ;
  • 최민수 (씨디어댑코코리아)
  • 투고 : 2015.07.27
  • 심사 : 2015.11.27
  • 발행 : 2015.12.05
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초록

A gas gun system to replicate the flight motions of large caliber spin-stabilized ammunition has been investigated experimentally and numerically. The system is specially designed to study aerodynamic characteristics and dynamics of a flight body ejected from a cargo shell or a subsonic projectile itself at up to 2,000 rpm and 100 m/s. Raynolds-averaged Navier-Stokes equations with a overset mesh technique and 6-DOF dynamics were solved to decide the chamber pressure according to the muzzle velocity input by users. The predicted velocity values show less than 6 % of discrepancies compared to experimental data. The system has successfully been tested for the simulation of deployment of a parafoil for a 155 mm gun-launched projectile.

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참고문헌

  1. S. Y. Choi and J. J. Pyun, "Concepts and Perspectives of SBA(Simulation Based Acquisition)," Communications of the Korean Institute of Information Scientists and Engineers, Vol. 26, No. 11, pp. 6-12, 2008.
  2. J. Sahu, "Virtual Fly-Out Simulations of a Spinning Projectile from Subsonic to Supersonic Speeds," 29th AIAA Applied Aerodynamics Conference, AIAA 2011-3026, 2011.
  3. C. Zhuo et el., "Numerical Simulation of the Muzzle Flows with Base Bleed Projectile Based on Dynamic Overlapped Grids," Computers & Fluids, Vol. 105, pp. 307-320, 2014. https://doi.org/10.1016/j.compfluid.2014.08.006
  4. J. Cordes, et al., "Structural Loading Statistics of Live Gun Firings for the Army's Excalibur Projectile," ARAET-TR-05005, Armament Research, Development and Engineering Center, 2005.
  5. C. W. Peterson et al., "The Fluid Dynamics of Parachute Inflation," Annual Review of Fluid Mechanics, Vol. 28, pp. 361-387, 1996. https://doi.org/10.1146/annurev.fl.28.010196.002045
  6. J. Sahu et al., "[6] B. S. Davis et al., "Computational Modeling of Sense and Destroy Armor(SADARM) Submunition Separation/Collision," ARL-TR-1378, Army Research Laboratory, 1997.
  7. B. S. Davis et al., "Shock Experiment Results of the DFuze 8Channel Inertial Sensor Suite That Contains Commercial Magnetometers and Accelerometers," ARL-MR-532, Army Research Laboratory, 2002.
  8. M. S. Baker and K. R. Pohl, "High-G Testing of MEMS Mechanical Non-Volatile Memory and Silicon," SAND2005-6094, Sandia National Laboratory, 2005.
  9. J. A. Cordes et al., "Comparison of Shock Response Spectrum for Different Gun Tests_SRS," Shock and Vibration Vol. 20, pp. 481-491, 2013. https://doi.org/10.1155/2013/980895
  10. CD-adapco, "STAR-CCM+ Tech. Manual v8.0," pp. 5776-5815, 2013.
  11. T. H. Shih et al., "A New k-$\varepsilon$ Eddy Viscosity Model for High Reynolds Number Turbulent Flows," Computers & Fluids, Vol. 24, No. 3, pp. 227-238, 1994. https://doi.org/10.1016/0045-7930(94)00032-T
  12. D. M. Belk, "The Role of Overset Grids in the Development of the General Purpose CFD Code," NASA CP-3291, pp. 193-204, 1995.