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Приказ резултата 11-20 од 52
Improving structure dynamic behaviour using a reanalysis procedures technique
(Univ Osijek, Tech Fac, Slavonski Brod, 2013)
The present paper deals with the problem of improving dynamic characteristics for a sub-structure of bucket wheel excavator. The procedure is concerned with the analysis of the distribution of potential and kinetic energy ...
Redesigning components of power transmission according to numerical model and vibration diagnostics
(Journal Vibroengineering, Kaunas, 2013)
This article presents derived methodological procedure of redesigning shaft, gear box, bucket wheel of bucket wheel excavator. Method of finite elements has been used for defining numerical model of shaft. As validation ...
Experimental studies on active vibration control of a smart composite beam using a PID controller
(IOP Publishing Ltd, Bristol, 2013)
This paper presents experimental verification of the active vibration control of a smart cantilever composite beam using a PID controller. In order to prevent negative occurrences in the derivative and integral terms in a ...
Elementi modifikacije i osetljivosti dinamičkih parametara / Elements of dynamic parameters modification and sensitivity
(Univerzitet u Beogradu - Mašinski fakultet, Beograd, 2013)
Promene na konstrukcijama mogu izazvati promene u strukturnim matricama nekih elemenata. U zavisnosti od vrste konstrukcije, kao i od željenih promena u njoj, moguće je menjati veću ili manju grupu elemenata. U ovom radu ...
Explicit parametric method for optimal spur gear tooth profile definition
(Trans Tech Publications Ltd, 2013)
The gear tooth profile has an immense effect on the main operating parameters of gear pairs (load capacity, working life, efficiency, vibrations, etc). In current engineering research and practice, there is a strong need ...
High reflectance as desired property of shining surface and undesired for laser welding in jewel production of 585 gold alloy
(Metalurgia International, 2013)
For most of golden jewels the desired property is the shining surface. From the other point of view, high level of shining leads to great reflectance of impinged beams from a surface. It means that when a laser beam is ...
Metodološki pristup proceni integriteta i veka rotacione opreme u hidroelektrani - turbinsko vratilo / Methodological approach to integrity assessment and service life of rotating equipment at hydropower plant: Turbine shaft
(Institut za ispitivanje materijala, Beograd, 2013)
Horizontalne Kaplanove turbine su instalirane u hidroelektrani 'ĐERDAP 2', 10 jedinica ukupne snage 28 MW. Uzimajući u obzir činjenicu da se zamor pojavio u mnogim komponentama, sprovedeno je istraživanje uticaja režima ...
Possibilities for reconstruction of existing steam boilers for the purpose of using exhaust gases from 14 MW or 17 MW gas turbine
(Pergamon-Elsevier Science Ltd, Oxford, 2013)
Within the energy system in Methanol vinegar complex (MVC) in Kikinda, beside process boiler and auxiliary equipment, there are three equal steam boilers made by "Minel Kotlogradnja", provided for combustion of natural ...
Distortion of the substructure of a 20-ft shipping container exposed to zinc hot-dip galvanizing
(Institute of Metals and Technology, 2013)
The main goal of this study was to build a model for a numerical simulation of hot-dip galvanizing of a 20-ft ISO shipping container. For that purpose, the basic transient thermo-mechanical problem of a steel structure ...
Unapređenje sistema obrazovanja studenata vazduhoplovstva Vojne akademije primenom aviona laboratorije / Improvement of the Military academy education system for aeronautics students using the flying laboratory
(Univerzitet odbrane u Beogradu - Institut za naučne informacije, Beograd, 2013)
U radu je opisan predlog unapređenja procesa obrazovanja studenata Vojne akademije za podršku procesa održavanja vazduhoplova Vojske Srbije zasnovan na uvođenju predmeta Ispitivanje vazduhoplova u letu. Pri tome je posebno ...