Study on the effects of training round caliber and propellant type on the ballistic characteristics of a dynamic-reaction training device

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Authors

  • Bui Xuan Son Le Quy Don Technical University
  • Bui Minh Tuan Le Quy Don Technical University
  • Nguyen Van Huong (Corresponding Author) Le Quy Don Technical University

DOI:

https://doi.org/10.54939/1859-1043.j.mst.112.2026.192-198

Keywords:

PUI-type training device; Dynamic-reaction; Internal ballistics; External ballistics.

Abstract

This study proposes the structural and ballistic design for an 82 mm PUI-type training device based on the dynamic-reaction principle. Using a MATLAB-based program to ensure the training projectile's trajectory matches that of the combat projectile, the authors analyzed the influence of two main parameters: the caliber of the training projectile (d) and the propellant type. The results show that NBL-62 propellant significantly reduces maximum pressure and stabilizes ballistic characteristics compared to NBL-34. The study identifies d = 23 mm with NBL-62 as the optimal configuration, ensuring a compact, low-pressure, and stable device. These findings provide an important scientific basis for designing and manufacturing an 82 mm training device based on the dynamic-reaction principle

References

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Published

25-06-2026

How to Cite

[1]
X. S. Bui, M. T. Bui, and H. Nguyen, “Study on the effects of training round caliber and propellant type on the ballistic characteristics of a dynamic-reaction training device”, J. Mil. Sci. Technol., vol. 112, no. 112, pp. 192–198, Jun. 2026.

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Section

Mechanics & Mechanical Engineering