A study on the range & deflection distance observation based on latitude position of artillery gun system

  • Authors

    • Hwan I Kang
    • Gun In Kim
    • Hyun Soo Kim
    2018-04-03
    https://doi.org/10.14419/ijet.v7i2.12.11113
  • Range, Deflection Distance, Coriolis Acceleration, Four Degree of Freedom, Trajectory, Projectile, Latitude Position.

  • Background/Objectives: In this paper, instead of using the six degree of freedom trajectory for a projectile, we consider itsfour degree of freedom trajectory which is the NATO standard trajectory model. We consider the range and deflection distance observation based on latitude position of Artillery Gun System due to Coriolis acceleration.

    Methods/Statistical analysis: We obtain the trajectory of a projectile with 155 mm diameter using the Runge-Kutta method. We obtain the range and deflection distances associated with fire elevation angle when the launch position is located at differentposition of the artillery gun system. Its position is a function of the latitude.

    Findings: By changing the latitude of gun position, variation of range and the deflection distances are measured due to Coriolis force. Under the condition that the fire elevation is fixed, the range and deflection distances are calculated by numerical analysis. The maximum of the range is achieved at the equator. The minimum of deflection distance is observed near the Antarctic while the maximum valueof the deflection is observed at the North Pole.

    Improvements/Applications: This approach will be a good resource for analysis of delivery accuracy of the artillery gun system based on its position which is a function of latitude.

     

  • References

    1. [1] Kang H. I., PyunJ. J., Kim H. S., A Study on Algebraic Solutions of Trajectory Equations, Indian Journal of Science & Technology 8(S1), 2014, pp.206-209.

      [2] Kang, H. I.,Pyun J. J.,Kim, H. S., A Study on Prediction of Probability of Hit for an Anti-aircraft Artillery, Indian Journal of Science & Technology 9(S1), 2016, pp.1-5.

      [3] Morento J. A., the Modified Point Mass and Five Degrees of Freedom Trajectory Models, Stanag 4355 (Edition 3), North Atlantic Treaty Organization (NATO), NATO Standardization Agency (NSA), 2009.

      [4] Baranowski, L.,"Feasibility Analysis of the Modified Point Mass Trajectory Model for the Need of Ground Artillery Fire Control Systems," Journal of Theoretical & Applied Mechanics, 51, (3), 2013, pp. 511~522.

      [5] Barbosa L. M., Blanco A. L. M., Dutra L. M., Santana D. P., Abrunhosa J. D. M., A Critical Evaluation of Three Models of External Ballistics, 18th International Congress of Mechanical Engineering, November 6-11, OuroPreto, MG. 2005.

      [6] Carlucci Donald E.,Jacobson Sidney S., Ballistics: Theory & Design of Gun & Ammunition, CRC Press, Taylor & Francis Group, Boca Raton, FL, USA, 2014, p. 265.

      [7] McCoy, Robert L. Modern Exterior Ballistics, TheLaunchand Flight Dynamics of Symmetrical Projectiles, Schiffer Military History Publishing Limited, 2012, p 191.

      [8] Rastislav B., KomendaJan, “Analysis of 155mmERFB/BB Projectile Trajectoryâ€, Advances in MT, 2006, pp.91-114.

      [9] Driels, Morris. Weaponeering: Conventional weapon system effectiveness, AIAA Educational Series, AIAA Inc, Reston, VA, 2013, pp. 134-156.

      [10] Lim Wee Yeow, Predicting the accuracy of unguided artillery projectiles, MS thesis, Naval Postgraduate School, Advisor: Morris R. Driels, 2016.

      [11] Lee JR, Kim SA, Yoo JW & Kang YK (2007), The present status of diabetes education and the role recognition as a diabetes educator of nurses in korea. Diabetes Research and Clinical Practice 77, 199–204.

      [12] McMahon GT, Gomes HE, Hohne SH, Hu TM, Levine BA & Conlin PR (2005), Web-based care management in patients with poorly controlled diabetes. Diabetes Care 28, 1624–1629.

      [13] Thakurdesai PA, Kole PL & Pareek RP (2004), Evaluation of the quality and contents of diabetes mellitus patient education on Internet. Patient Education and Counseling 53, 309–313.

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  • How to Cite

    I Kang, H., In Kim, G., & Soo Kim, H. (2018). A study on the range & deflection distance observation based on latitude position of artillery gun system. International Journal of Engineering & Technology, 7(2.12), 147-150. https://doi.org/10.14419/ijet.v7i2.12.11113