SCIDAR - A Digital Archive of the University of Kragujevac

In the changing business environment conditions, one of the primary management tasks is competitiveness enhancement. This goal can be achieved, among other things, by improving performance, which has the greatest impact on business success. This research paper aims to indicate that the alignment between the European Foundation for Quality Management (EFQM) model and the business model leads to an increase in enterprise performance. By applying the Fuzzy Simple Additive Weighting (FSAW) method...

The paper considers the problem of optimization of the rectangular box section of the double beam bridge crane. Reduction of the girder mass is set as the objective function. The constrained optimization applied in Matlab Optimization Toolbox was used as the methodology for determination of optimal geometrical parameters of the rectangular box section. The criteria of permissible stresses, local buckling of plates, static deflection, permissible period of oscillation, minimum plate thickn...

In this paper the scope of goods exchange of Kraljevo region with foreign countries is analyzed. The aim of analysis is estimation of scope of goods flow as one of the starting parameters for introducing the innovations in industrial warehouse and for development of city logistics concept based on concentration of goods and information flows.

Product distribution at market of the Member States of the European Union is restricted by application of new directives that regulate the product quality. In order to increase the export Serbia and Montenegro should take part in assuming and applying the EU technical regulations so that state administration could be reorganized and trained. In this paper key directive requirements related to machines are shown and analyzed. Relations between directives and national legislation are also giv...

The paper considers the problem of optimization of the box section of the main girder of the bridge crane. Reduction of the girder mass is set as the objective function. The method of Lagrange multipliers was used as the methodology for approximate determination of optimum dependences of geometrical parameters of the box section. The criteria of lateral stability and local stability of plates were applied as the constraint functions. The obtained results of optimization of geometrical paramet...

One of requirements to be fulfilled by supporting structure is condition of deformation. Usually, it is set through displacement limits of certain points on deformed structure. The paper presents a method for determining the deflection of auto crane articulated boom due its payload on the example of three-segment articulated structure. The forces in joints were obtained in the segments' local coordinate systems. The equations of bending moments for each segment were defined, with respect ...

U radu је određena analiza škripca (minimalne temperaturske razlike) za razmenu toplote u gasifikacionom kotlu na pelet. Cilj je bio da se na adekvatan način pronađu osnovni parametri (temperature i snage) konvektivno zračnog (ložište) i konvektivnog (druga i treća promaja) dela gasifikacionog kotla na pelet. Na osnovu ovih parametara moguće je, relativno lako, isprojektovati ložište i razmenjivače toplote na kotlu. Kotao je posmatran kao sistem više toplih i hladnih struja. U tople struje (t...

The primary goal was to design as economic as possible pellet stove with the efficiency larger than 92% and steady combustion with the carbon monoxide emissions less than 100 mg/m3N at13 vol% of O2 in the dry flue gas. Based on the testing of the developed stove, operational problems of pellet stoves the aim of this paper is to present: 1. the developed burner cup and pollutant emissions from the stove. In addition, to address operational, construction and and fuel-relating problems. 2. solut...

The goal of the paper is to find the optimal diameter and pipeline material for a small hydropower plant (SHPP) Kašići on the Jošanica river. The SHPP has nominal flow rate of 5.65 m3/s, the head37.76 m and the total pipeline length 3000 m. The SHPP should be functioning as the second plant in a cascade system when the above SHPP Belci has extremely low flow rates, below 17% of the nominal. During these flow rates the existing turbine in the SHPP Belci has low efficiency, which is improved by...