Vojnotehnicki glasnik / Military Technical Courier

391-403

Authors: Andrejić Marko, Andrić Andreja, Stojanović Nikola

The paper presents an expert system to support decision making in the field of diagnostics of equipment defects in joint tactical units. The theoretical bases of diagnostics and expert systems are briefly presented as well as the structure of a developed expert system, the method and the effects of its application. The developed system comprehends the Knowledge of experts in design, diagnostics and maintenance of equipment in joint tactical units as well as corresponding literature data. The guidelines for improving the developed expert systems have been proposed.

412-423

Authors: Gardijan Petar

In this paper, on the basis of the known methods of failure analysis developed primarily for electronic devices FMEA and FMECA, the possibility of their application on a complex machine conditioned the development of an 'adjusted' method of the working of FMECA. The practical application has shown that the information gained by using this methodology of failure analysis can indeed be of assistance in all phases of a machine lifetime.

429-438

Authors: Miškovic Vladislav

This paper considers the application of inductive machine learning methods in data mining and knowledge discovery in databases tasks. Some characteristics of the author's noncommercial System for Data Mining and Knowledge Discovery are presented as Well as the experimental comparison of its inductive rules learning component with some best known systems from the same category.

452-465

Authors: Đorđević Aleksandar B., Karanović Dušan M.

The discharge curve of a cell/battery was defined either as a set Of ordered pairs: voltage, Vt vs time, ti = ti-1 + ∆t or time, ti vs discharge voltage, Vi, where U0 > Vi > V cutoff. In addition to the experimental measured discharge curve, the cell relaxation curve needs to be monitored. The Calculated Discharge Curve Method (CDCM) was developed to improve cell/battery monitoring as well as its characterization. The CDCM may be used for type qualification, product acceptance, and periodical test during service. The Algorithm procedure was presented. The Alkaline manganese cell LR 20-VARTA load 10 Ω, at ambient temperature, was used for the CDCM demonstration. The mathematical calculations were conducted on an IBM personal computer using the Symphony software.

478-483

Authors: Anđelković-Lukić Mirjana

In this paper different processes of coating high explosives HMX with different polymer materials are given. A process of coating depends on used polymers and waxes. Some formulations are presented, based on HMX and bonding agents (polymers and waxes) and their effects on detonation velocity.

496-503

Authors: Pokorni Slavko

(not available in English) Pasivni dipoli i IC mamci i dalje su najjeftiniji i najisplativiji način protivelektronskih dejstava u odnosu na postignuti efekat zaštite aviona od radarski i IC samonavođenih raketa i sistema za praćenje. To je i najčešće korišćen oblik protivelektronskih dejstava kada se radi o vojnim avionima. Osim u vazduhoplovstvu, sve više se primenjuju i u zaštiti brodova, pa i borbenih sredstava na kopnu, kod kojih se koriste i sredstva za zadimljavanje. Mogu da ih nose i koriste skoro sve vrste platformi, od aviona svih tipova, preko bespilotnih letilica, jedrilica padobrana, balona, do brodova i oklopnih borbenih vozila. Osnovne tendencije u razvoju pasivnih mamaca ogledaju se u pronalaženju pogodnijih materijala novih tehnika za njihovo izbacivanje u okolinu štićenog objekta i boljeg prilagođavanja spektralnim osobinama zračenja štićenog objekta. Pasivni dipoli, IC mamci i aktivni mamci mogu se izbacivati na razne načine, a način izbacivanja ima veliki uticaj na njihovu efikasnost. Većina mamaca izbacuje se uređajima sličnim minobacaču ili topu. U razvoju, a i upotrebi nalaze se tzv. pametni izbacivači, a teži se izradi modularnih unificiranih izbacivača dipola i IC mamaca. Pored pasivnih, sve više su u upotrebi aktivni mamci, od kojih se očekuje mnogo, posebno od aktivnih mamaca povezanih optičkim kablovima sa platformom koja ih nosi. Procenjuje se da, za sada, aktivni mamci nisu zamena za pasivne i da ih neće potpuno istisnuti iz upotrebe, već da najbolje rezultate može dati zajednička (kombinovana) upotreba.