| || Operational research in weapon system
Author : Varma, R.S.
Source : Defence Science Journal ; Vol:8(2) ; 1958 ; pp 49-64
Subject : 519.8 Operations Research;623.41 Weapon Systems
Keywords : Weapon system ;Operational research
Abstract : "The paper is divided into three parts: (a) The first part deals with what operational research is. (b)The second part gives what we mean by Weapon Systems and discusses considerations that determine the choice of a particular weapon system from a class weapon systems. (c)The third part deals with some aspects of weapon replacement policy.The effectiveness of a weapon system is defined as E=D/C where E is weapon effectiveness (a comparative figure of merit); D is total damage inflicted or prevented and C is total cost, D and C being reduced to common dimensions. During the course of investigations, criteria regarding to choice of weapon or weapons from a set of weapon systems are established through production function and military effect curves. A procedure is described which maximizes the expectation of military utility in order to select a weapon system from the class of weapon systems. This is done under the following simplifying assumptions: (a) Non-decreasing utility function; (b) Constant average cost for each kind of weapons; and (c) Independence of the performance of each unit of weapon. Some of the difficulties which arises when any of these restrictions is relaxed are briefly mentioned. Finally, the policy of weapon replacement and the factors governing the same are described."
| || Submunition Dispensing Mechanisms
Author : Srinivasan, S. ;Dutta, G.G.;Kohli, S.L.
Source : Defence Science Journal ; Vol:47(4) ; 1997 ; pp 435-444
Subject : 623.4 Armaments and Ballistics;623.41 Weapon Systems
Keywords : Single stage ejection ;Multistage ejection;Warhead;Submunition warhead;Weapon system
Abstract : The effectiveness of a weapon system is enhanced manifold when it is incorporated with submunitions instead of being a unitary one. A large unitary warhead produces effects that are too concentrated and localised for many target types, resulting in a very high probability of either causing no damage or an over-kill. The submunition warhead incorporating a single-stage ejection process has the drawbacks of lesser area coverage and non-uniform distribution of submunitions. To overcome the above drawbacks, dispensing mechanisms with multistage ejection of submunitions are being employed worldwide by the warhead designers. Extensive work has been carried out by the authors to achieve wide area coverage by using multistage ejection instead of single-stage ejection.