Interior Ballistics

A Methodology of Noncontact Automatic Measurement and Development of an Online Measurement Unit on Charge Temperature of a Large Caliber Artillery

[+] Author and Article Information
Jincao Chen

e-mail: luxin@mail.njust.edu.cn
School of Energy and Power Engineering,
Nanjing University of Science and Technology,
Nanjing, Jiangsu 210094,PRC

1Corresponding author.

Manuscript received June 25, 2012; final manuscript received September 18, 2012; accepted manuscript posted January 7, 2013; published online April 19, 2013. Assoc. Editor: Bo S. G. Janzon.

J. Appl. Mech 80(3), 031401 (Apr 19, 2013) (5 pages) Paper No: JAM-12-1257; doi: 10.1115/1.4023311 History: Received June 25, 2012; Revised September 18, 2012; Accepted January 07, 2013

Charge temperature is one of the main tactical and technical indices for a large caliber self-propelled gun, and is a critical firing datum affecting the projectile muzzle velocity and gun firing accuracy. In this paper, on the basis of analyzing the heat transfer character of propellant, an unsteady-state heat conduction model describing the variation of the charge temperature is built and the finite-difference implicit schemes are theoretically deduced using the volume equilibrium method for numerical simulation. Comparing simulation curves with experiment results indicates that the physical models used reflect the real-time change process of the charge temperature with the environment temperature. A noncontact automatic online charge temperature measurement unit is developed. This unit can accurately measure the temperature field and real-time average temperature of the charge for all charge zones placed in a combat vehicle and simultaneously transfer the temperature information to the gunner task terminal computer through a controller area network (CAN) bus interface for trajectory calculation and firing data correction, ensuring the weapon system meets the requirements of digitalization and informatization.

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Zhou, Y. H., Yu, Y. G., Liu, D. J., and Lu, X., 2007, “Necessity of Precision Measuring of Charge Temperature in Field Environment,” J. Nanjing Univ. Sci. Technol., 31(5), pp. 554–558.
Guo, X. F., 2004, Firing Accuracy Analysis for Long Range Gun Weapon Systems, National Defence Industry Press, Beijing, pp. 80–81.
Tao, W. Q., 2001, Numerical Heat Transfer (Second Edition), Xi'an Jiao Tong University Press, Xi'an, P. R. C., pp. 85–86.
Zhou, Y. H., and Wang, S. C., 1990, Applied Two-Phase Flow Interior Ballistics, Ordnance Industry Press, Beijing, pp. 78–79.


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Fig. 1

Schematic diagram of a charge of the large caliber self-propelled gun; 1–cartridge, 2–wear-reducing additive, 3–flash tube, 4–propellant grains

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Fig. 2

Development program of an online measurement unit

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Fig. 3

Sketch illustrating Nomenclature used in two-dimensional domain

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Fig. 4

Actual photograph of ICTS

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Fig. 5

Working principle diagram of the noncontact automatic online charge temperature measurement unit

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Fig. 6

Photograph of noncontact automatic online charge temperature measurement unit

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Fig. 7

Temperature distribution of charge at different times

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Fig. 8

Comparison between numerical simulation and experimental measurement




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