Претраживање
Приказ резултата 21-30 од 47
Methodology of physical occurrences analogy in researching vehicle lifetime
(Technics Technologies Education Management, 2011)
Lifetime as a critical dimension of the quality of a product is most often studied using the unreliability curve, when there are problems in determining the origin in terms of time limit (Delta t), since monitoring usually ...
Reconstruction of the aero-mixture channels of the pulverized coal plant of the 100 MW power plant unit
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2011)
After the last revitalization of thermal power block of 100 MW in TPP 'Kostolac A', made in the year 2004, during the operation of the plant, pulverized coal deposition often occurred in horizontal sections of the aero-mixture ...
The effect of bowl-in-piston geometry layout on fluid flow pattern
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2011)
In this paper some results concerning the evolution of 3-D fluid flow pattern through all four strokes in combustion chambers with entirely different bowl-in-piston geometry layouts ranging from 'omega' to 'simple cylinder' ...
Load-bearing steel structure diagnostics on bucket wheel excavator, for the purpose of failure prevention
(Pergamon-Elsevier Science Ltd, Oxford, 2011)
The appearance of cracks on load-bearing steel structure of compact, hydraulic bucket wheel excavator was a perennial problem. Unfavourable stress concentration, inadequate geometry and structure of materials, inadequate ...
Analiza rizika integriteta konstrukcija - primena na veliku kompaniju / Risk analysis in structural integrity: Application to a large company
(Institut za ispitivanje materijala, Beograd, 2011)
Prikazana je primena analize rizika integriteta konstrukcija na primeru velike, kompleksne kompanije, koja se sastoji iz nekoliko proizvodnih jedinica i kod koje su procesi i procesna oprema od suštinskog značaja za ...
Međuzavisnost kontingentnih faktora organizacije u domaćim industrijskim preduzećima / Interdependence of contingency organizational factors in national industrial enterprises
(Savez inženjera i tehničara Srbije, Beograd, 2011)
U radu je najpre dat pregled raspoloživih istraživanja u oblasti kontingentnih faktora, i izvršena analiza prethodnih istraživanja. Na osnovama Kandvalinog modela izvršena je eksperimentalna provera međuzavisnosti ...
The influence of buffer layer on the properties of surface welded joint of high-carbon steel
(Institute of Metals and Technology, 2011)
Surface welding with buffer layer is often in use because of its well-known properties of plasticity, or ability to slow crack growth initiated. However, in modern surface welding technologies, buffer layer is rarely used. ...
Measurement of local deformation fields in dental composites using 3d optical system
(Chemicke Listy, 2011)
Polymerization shrinkage is the single most important local deformation of dental composites that has a substantial effect on the quality of the tooth-restoration interface in clinical conditions. The aim of this study was ...
Failure analysis of the combat jet aircraft rudder shaft
(Pergamon-Elsevier Science Ltd, Oxford, 2011)
This paper analyzes failure causes of the combat jet aircraft rudder shaft (RS) which occurred during the flight mission. A finite element method (FEM), utilized to determine the stress state of the RS subjected to hinge ...
Pregled eksplicitnih aproksimacija Kolbrukove jednačine za koeficijent trenja / A review of explicit approximations of Colebrook's equation
(Univerzitet u Beogradu - Mašinski fakultet, Beograd, 2011)
U radu je dat pregled najčešće korišćenih eksplicitnih jednačina za određivanje koeficijenta trenja u glatkim i hrapavim cevima. Odstupanje navedenih jednačina od Kolbrukove jednačine izraženo je preko srednje relativne ...