Author
Zorica Djordjevic
Bio: Zorica Djordjevic is an academic researcher from University of Kragujevac. The author has contributed to research in topics: Energy consumption & Drive shaft. The author has an hindex of 6, co-authored 12 publications receiving 208 citations.
Papers
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TL;DR: In this paper, a two-stage cycloidal speed reducer with a simple combination of singlestage cycloid speed reducers is presented, which is characterized by good load distribution and dynamic balance.
Abstract: A new design of a two-stage cycloidal speed reducer is presented in this paper. A traditional two-stage cycloidal speed reducer is obtained by the simple combination of singlestage cycloidal speed reducers. A single-stage reducer engages two identical cycloid discs in order to balance dynamical loads and to obtain uniform load distribution. Consequently, the traditional two-stage reducer has four cycloid discs, in total. The newly designed two-stage cycloidal speed reducer, presented in this paper, has one cycloid disc for each stage, that is, two cycloid discs in total, which means that it is rather compact. Due to its specific concept, this reducer is characterized by good load distribution and dynamic balance, and this is described in the paper. Stress state analysis of cycloidal speed reducer elements was also realized, using the finite elements method (FEM), for the most critical cases of conjugate gear action (one, two, or three pairs of teeth in contact). The results showed that cycloid discs are rather uniformly loaded, justifying the design solution presented here. Experimental analysis of the stress state for cycloid discs was realized, using the strain gauges method. It is easy to conclude, based on the obtained results, that even for the most critical case (one pair of teeth in contact) stresses on cycloid discs are in the allowed limits, thus providing normal functioning of the reducer for its anticipated lifetime. [DOI: 10.1115/1.4004540]
85 citations
TL;DR: It is found that the floor–ceiling heating has the best performances: the lowest energy and exergy consumption, exergy destruction,CO 2 emissions, CO 2 emissions (compound, direct, and avoidable), and operation costs.
66 citations
TL;DR: In this paper, the authors analyzed the impact of weather conditions on the consumption of electricity in the City of Kragujevac (the Republic of Serbia) during the seven-year period from 2006 to 2012.
47 citations
TL;DR: A procedure to choose the optimal municipal solid waste (MSW) management system for the area of the city of Kragujevac (Republic of Serbia) based on the MCDM method, which confirmed and facilitated the choice of the optimal MSW management strategy.
32 citations
Journal Article•
TL;DR: In this article, a 3D kompjuterski model ciklozupcanik predstavlja vitalni element cikloreduktora - mehanickog prijenosnika snage i gibanja novije generacije sa sve vecom primjenom u industrijskoj praksi.
Abstract: Numericka i eksperimentalna analiza stanja naprezanja ciklozupcanika Izvorni znanstveni clanak U ovom radu izvrsena je analiza stanja naprezanja ciklozupcanika numerickim i eksperimentalnim metodama za najkriticniji slucaj sprezanja - slucaj jednostrukog zahvata. Ciklozupcanik predstavlja vitalni element cikloreduktora - mehanickog prijenosnika snage i gibanja novije generacije sa sve vecom primjenom u industrijskoj praksi. Izrađen je 3D kompjuterski model jednog konkretnog jednostupanjskog cikloreduktora. Zatim je definiran citav niz razlicitih numerickih modela ciklozupcanika u programskim paketima FEMAP i NASTRAN radi određivanja sto realnijeg stanja naprezanja uporabom metode konacnih elemenata (MKE). U cilju verifikacije dobivenih rezultata numerickim putem, izvrsena je eksperimentalna analiza koristenjem metode mjernih traka. Napravljen je fizicki model ciklozupcanika kao i ostalih elemenata cikloreduktora koji su s njim u direktnom kontaktu kako bi se dobili sto realniji uvjeti u postupku eksperimentalne analize. Dobiveni eksperimentalni rezultati pokazuju dobru sukladnost s numerickim rezultatima. Cak i za najnepovoljniji teorijski slucaj sprezanja (jednostruki zahvat), koji se kod cikloreduktora u praksi gotovo i ne javlja, vrijednosti naprezanja su u dopustenim granicama i osiguravaju pouzdan rad prijenosnika tijekom predviđenog radnog vijeka. Kljucne rijeci: cikloreduktor, ciklozupcanik, eksperimentalna analiza, numericka analiza
17 citations
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TL;DR: In this article, a literature review on the basic and applied research in RHC systems for the built environment is conducted, in terms of thermal comfort, thermal analysis including heat transfer model, heating/cooling capacity, CFD analysis, energy simulation, system configuration and control strategies.
322 citations
TL;DR: In this paper, a DBN made up from multiple layers of restricted Boltzmann machines is used for electricity load forecasting in the Macedonian electric power system, and the results show that the applied model is not only suitable for hourly electricity load prediction of the Macedonia electric power systems, but also provides superior results than the ones obtained using traditional methods.
232 citations
09 Mar 2007
TL;DR: All Access to FAILURE MODE and EFFECTS ANALYSIS FMEA PDF.
Abstract: All Access to FAILURE MODE AND EFFECTS ANALYSIS FMEA PDF. Free Download FAILURE MODE AND EFFECTS ANALYSIS FMEA PDF or Read FAILURE MODE AND EFFECTS ANALYSIS FMEA PDF on The Most Popular Online PDFLAB. Only Register an Account to DownloadFAILURE MODE AND EFFECTS ANALYSIS FMEA PDF. Online PDF Related to FAILURE MODE AND EFFECTS ANALYSIS FMEA . Get Access FAILURE MODE AND EFFECTS ANALYSIS FMEA PDF and Download FAILURE MODE AND EFFECTS ANALYSIS FMEA PDF for Free.
220 citations
TL;DR: In this paper, three different multi-criteria decision-making methods, namely, Technique for Order Preference by Similarity to Ideal Solution (TOPSIS), Preference Ranking Organization Method for Enrichment Evaluations (PROMETHEE) I and PROMETHee II, were utilized for the scenario evaluation.
132 citations
TL;DR: In this paper, a case study involving the supply network design and the utilisation of MSW from urban sources is presented to study the benefits of WTE strategy from MSW and its energy generation potential.
113 citations