Vojnotehnicki glasnik / Military Technical Courier

42-70

Authors: Demić Miroslav D., Glišović Jasna D., Miloradović Danijela M.

Calculation and testing methods of drum brake mechanisms are presented in a large number of papers. Intensive development of computer techniques, numerical methods and measurement techniques make a significant contribution in this domain. Based on the conducted analysis, it is obvious that there is no generally accepted method for the evaluation of mechanical characteristics and output parameters of drum brakes. One new approach for defining evaluation criteria of the properties of drum brakes for motor vehicles is presented in this paper. The complex characteristics of various types of brake mechanisms are formed according to the proposed algorithm, the fast assessment of the characteristics of the brake mechanism is performed, which is especially important in the development phase of new products, by using computer techniques for measuring, data acquisition and data processing.

90-108

Authors: Andrejić Marko D., Milenkov Marjan A., Andrejić Ivana M.

Major organizational changes occurring during the last decade in the state and the current social moment require an adequate social determination of the defense as an important state function, having in mind its qualitative level of study, scientific research and logistical sustainability. The role and importance of the logistic support of defense, range and quality of resources that it engages, the practical needs, time requirements and current trends require a treatment of the defense at a higher level of consideration in education, research and operational practice. When considering the development level of any science and the work on its development, we should monitor continuously and analyze objectively the development and influence of the dominant forms of social consciousness - religion, philosophy and particular sciences (natural and social) - and review the basic constituents of the science development. It is also necessary to understand the essence of the relationship between science and philosophy, science and politics, and science and art. A large number of authors (under the influence of methodological essentialism) consider that each science at its lowest level of development (with the exception of philosophical assumptions that are implicit) must have four basic constituents: its subject, theory, language and methodology. Based on the development of the above constituents, these authors assess the level of the scientific development of the particular science, i.e. scientific discipline.

125-142

Authors: Drenovac Aleksandar Ž., Drenovac Bratislav Ž.

This paper proves that the application of the PROMETHEE method, one of better known methods of multicriteria optimization, can be used as a generalized criterion for many different situations when solving diverse problems and at all levels of the military organization. The decision-making process can be simplified, resulting in a higher level of reliability of decisions of the Ministry of Defence and higher levels of command in Serbian Armed Forces while solving important multicriteria problems above all.

168-187

Authors: Petrović Nikola Č., Đedović Branko N., Petrović Dragana N.

With the desintegration of the former Yugoslavia, the needs for military technique had been significantly reduced. The capacities that exceed the scope and the structure of these needs, for which an export-oriented production would be economically sustainable, should be redirected to the production of regular consumption products. Following the practice of developed countries with multinational character projects and cooperative production of complex military assets would increase the opportunities for such a redirection. That orientation would go in favor of the prevention-based defense policy which is the strategic orientation of our country. Moreover, self-reliance in the production is viable only for some weaponry and military equipment where the economy reaches a full production scale and for which there is a possibility of export. The aim of this study is to show the need for analyzing the socialeconomic sustainability of developing and producing complex weapons and military equipment in a joint venture with the countries in the region and beyond, without jeopardizing the security of the country's current and sustainable security. This analysis is a useful tool not only for rating the project's accceptability, but also for selecting the best alternative among several project variants. It is not possible to monetize entirely the effects of benefits for a society correlating with the introduction into service of complex combat systems; therefore, a cost benefit analysis and multicriteria analysis are used for the evaluation of investment profitability. In the context of the object and purpose of the research, the methods of analysis and synthesis are used as well as the investment evaluation method. A graphic illustration and four tables are given in order to clarify the author's views.

207-215

Authors: Stefanović Radiša R.

The paper analyzes the flow of some multimedia services, and points to the possibility of applying some of the services in the broadband environment to improve the logistic needs of the army. The need to convey information in different forms (from text, data, graphics, still pictures to video motion pictures) is increasing continually. Requests for information transfer in high resolution require increasing the flow to several dozens of Mb/s. Broadband represents the platform for a wide range of multimedia services. Each multimedia service requires a certain flow which can be partially decreased with advanced coding techniques.