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 | Computation of In-bore Velocity-time and Travel-time profiles from Breech Pressure Measurements
Author : Kankane, D. K.;Ranade, S. N.
Source : Defence Science Journal ; Vol:53(4) ; 2003 ; pp 351-356
Subject : 662.3 Propellants;623.5 Armaments and Ballistics
Keywords : Breech pressure measurement;Gun propellant;Breech pressure;Gun system design;Internal ballistics;Gun
Abstract : The paper describes breech pressure measurement and also discusses the computation of velocity-time and travel-time profiles in the barrel from the instantaneous breech pressure values. The computed value of velocity at the shot out instant is obtained as the muzzle velocity. A close correlation is observed between the muzzle velocities measured by a radar and those computed from pressure-time data by this method. |
| | The internal ballistics of a leaking gun
Author : Kothari, D.S.
Source : Defence Science Journal ; Vol:2(4) ; 1952 ; pp 201-207
Subject : 623.5 Armaments and Ballistics
Keywords : Gun ;Ballistics
Abstract : Abstract not available. |
| | Ordnance and small arms design
Author : Jenkins, F.L.
Source : Defence Science Journal ; Vol:2(1) ; 1952 ; pp 40-44
Subject : 623.5 Armaments and Ballistics
Keywords : Riffle ;Gun
Abstract : Abstract not available. |
| | On the adiabatic expansion of the reaction products inside the gun
Author : Murgai, M.P.
Source : Defence Science Journal ; Vol:4(1) ; 1954 ; pp 15-18
Subject : 355 Defence Sciences
Keywords : Gun ;Adiabatic expansion
Abstract : The change in composition of the products of reaction inside the gun, during their adiabatic expansion, from the position of the all burnt to the muzzle has been considered and the temperature of the product, when they reach the muzzle, determine. While the maximum change of composition is 10 percent., the difference of temperature at the muzzle from that calculated on the basis of constant composition is only 1 percent. |
| | On Attainment of Constant Pressure Phase in an Orthodox Gun with Resistance
Author : Bhattacharyya, R.N.
Source : Defence Science Journal ; Vol:26(3) ; 1976 ; pp 105-110
Subject : 623.4 Armaments and Ballistics
Keywords : Internal ballistics;Gun
Abstract : In this paper the conditions for the existence pressure phase for certain period during burning in an orthodox gun with constant bore resistance have been obtained and then the internal ballistics is calculated. |
| | A Note On Piezometric Efficiency In An Orthodox Gun
Author : Bhattacharyya, R.N.
Source : Defence Science Journal ; Vol:23(2) ; 1973 ; pp 55-62
Subject : 623.4 Armaments and Ballistics;623 Military Science and Engineering
Keywords : Gun ;Muzzle Velocity;Peizoelectric Efficiency
Abstract : "It has been shown that the muzzle velocity and the piezometric efficiency both may be increased for a suitable composite charge in comparison with those of the single charge. The condition stipulated is that the length of the gun should be sufficiently large in comparison to the initial free space behind the shot. The composite charge considered here consists of two components such that the pressure driving the shot remains absolutely constant throughout the period when the second component burns. " |
| | Naval gunnery from user's point of view
Author : Hunt, A.H.F.
Source : Defence Science Journal ; Vol:2(1) ; 1952 ; pp 16-17
Subject : 623.5 Armaments and Ballistics
Keywords : Fire control ;Gun ;Ballistics
Abstract : Abstract not available. |
| | On the relation between maximum pressure and shot start pressure
Author : Aggarwal, S.P. ;Nagaratnam, A.
Source : Defence Science Journal ; Vol:3(3-4) ; 1953 ; pp 209-212
Subject : 623.5 Armaments and Ballistics
Keywords : Gun ;Linear relation
Abstract : A simple linear relation between the maximum pressure and the short-start pressure has been derived on the basis of a formula given in the Fiat Review of German Science (1939-45) and has been verified to be approximately true in the case of 3.7" Howitzer and 5.5" Gun Mark III. |
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