Prediction of Shot Start Pressure for Rifled Gun System

N. V. Sudarsan; R. B. Sarsar; S. K. Das; S. D. Naik

doi:10.14429/dsj.68.12247

N. V. Sudarsan DRDO-Armament Research and Development Establishment, Pune - 411 021
R. B. Sarsar DRDO-Armament Research and Development Establishment, Pune - 411 021
S. K. Das DRDO-Defence Institute of Advanced Technology, Pune - 411 025
S. D. Naik DRDO-Armament Research and Development Establishment, Pune - 411 021

DOI: https://doi.org/10.14429/dsj.68.12247

Keywords: Driving band, Forcing cone angle, Coefficient of friction, Rifled barrel, Dimensional analysis

Abstract

Determination of short start pressure (SSP) for gun system has always been of paramount interest for gun designers. In this paper, a generalised model has been developed for theoretical prediction of SSP for rifled gun system using dimensional analysis approach. For this, parameters affecting the SSP of the gun like rifling dimensions, driving band dimensions, material properties of driving band, projectile mass and diameter are taken into consideration. For a particular case of large caliber rifled gun system, the model is established using linear relations among dimensionless groups of parameters. The model has been validated by data available from the open literature.

Author Biographies

N. V. Sudarsan, DRDO-Armament Research and Development Establishment, Pune - 411 021

Mr N.V. Sudarsan received his MSc (Statistics) and MSc (Mathematics) from Osmania University, in 2007 and 2009 respectively. Presently working as Scientist ‘C’ in ARDE, Pune. His areas of interest are : Internal and external ballistics of guns.

R. B. Sarsar, DRDO-Armament Research and Development Establishment, Pune - 411 021

Dr R.B. Sarsar obtained his PhD from the DIAT, Pune, in 2014. Presently is working as Scientist ‘D’ in ARDE, Pune. His areas of research are : Flight dynamics and internal ballistics.

S. K. Das, DRDO-Defence Institute of Advanced Technology, Pune - 411 025

Dr Samir Kumar Das is working as Professor at Department of Applied Mathematics, DIAT, Pune. He has 25 years of teaching and research experience. He has published more than 100 papers in national/international journals.

S. D. Naik, DRDO-Armament Research and Development Establishment, Pune - 411 021

Dr (Mrs) Smita D. Naik obtained her PhD from the University of Poona, Pune in 1988. Presently she is working as Scientist ‘G’ in ARDE, Pune. Her areas of research are flight dynamics and stability analysis. She has published 55 papers in national/international journals.