Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Marian-Dumitru Nedeloni"'
Publikováno v:
Analele Universităţii "Eftimie Murgu" Reşiţa: Fascicola I, Inginerie, Vol XXV, Iss 1, Pp 69-80 (2018)
In this paper, a study concerning the dry sliding wear behavior of three Cu and Al alloys namely CuSn12, CuAl10Fe3 and AlSi12 was made. For this three alloys type, all tests have been performed with a tribometer using the pin-on-disk method (POD) acc
Autor:
Marian-Dumitru Nedeloni, Eugen Birtărescu, Lidia Nedeloni, Luminiţa Hatiegan, Sorin Laurenţiu Bogdan
Publikováno v:
Analele Universităţii "Eftimie Murgu" Reşiţa: Fascicola I, Inginerie, Vol XXIV, Iss 1, Pp 247-256 (2017)
This paper presents the experimental results of cavitation erosion research regarding the resistance of some steels. So, the cavitation erosion researches involve tests of hours for each test. These results are in tabular form, through charts and pic
Publikováno v:
Analele Universităţii "Eftimie Murgu" Reşiţa: Fascicola I, Inginerie, Vol XXIV, Iss 1, Pp 225-234 (2017)
Power transmissions that incorporate gears dissipate a significant amount of energy and noise. Thus, any improvement in their performance contributes to reducing energy consumption and noise pollution. In recent years, the opportunities offered by co
Publikováno v:
Analele Universităţii "Eftimie Murgu" Reşiţa: Fascicola I, Inginerie, Vol XXIV, Iss 1, Pp 235-246 (2017)
This paper presents some information regarding the hydraulic turbines respectively the experimental results on cavitation erosion behavior of a 13Cr-4Ni stainless steel used to manufacture the components exposed to water of the Francis, Kaplan and Pe
Autor:
Eugen Raduca, C Haţiegan, Romeo Negrea, Moşteanu Dănuţ, Gilbert-Rainer Gillich, Nicolina Pop, Marian-Dumitru Nedeloni, Lenuţa Cîndea
Publikováno v:
Applied Thermal Engineering. 103:1164-1175
This paper studies the influence of the thermal field on X60 carbon steel components during welding in CO 2 environment given that the heat source (electric arc) moves. Through ANSYS software for modeling and simulation of welded components was consi
Autor:
Cornel Hatiegan, Marian-Dumitru Nedeloni, Cristinel Popescu, Marius Tufoi, Ioan Pădureanu, Cristian Rudolf
Publikováno v:
Analele Universităţii "Eftimie Murgu" Reşiţa: Fascicola I, Inginerie, Vol XXII, Iss 2, Pp 148-161 (2015)
This paper presents a comparative study of four types of plates in the form of trapeze, clamped on the contour, regarding modal analysis. After this analysis, there have been obtained the Eigen frequencies for 30 vibration modes between the limits 18
Autor:
Marian-Dumitru Nedeloni, Cornel Haţiegan, Florian Muntean, Marcel Jurcu, Irina Maria Terfăloagă, Petru Magheţi
Publikováno v:
Analele Universităţii "Eftimie Murgu" Reşiţa: Fascicola I, Inginerie, Vol XXII, Iss 2, Pp 273-288 (2015)
This paper presents the study of the modal analysis of four types of plates in parallelogram shape, with or without defects, using the SolidWorks program. The results obtained after this study, have targeted the behavior of plates regarding the mesh,
Autor:
Relu-Costel Ciubotariu, Doina Frunzaverde, Evelina Roxana Secosan, Viorel Campian, Marian-Dumitru Nedeloni
Publikováno v:
Analele Universităţii "Eftimie Murgu" Reşiţa: Fascicola I, Inginerie, Vol XXII, Iss 1, Pp 167-174 (2015)
The paper presents the results of cavitation erosion tests performed on five samples from pure aluminum using the vibratory method with stationary specimen. The main purpose of this research is for determine which is the distance between the sonotrod
Publikováno v:
Materials Science Forum. 782:257-262
This paper presents the cavitation erosion research of the antifriction alloy YSn83 regarding on its behavior in laboratory. The antifriction alloy YSn83 is not subject to cavitation erosion in its practical applications, as is happening in reality a
Publikováno v:
Materials Science Forum. 782:251-256
This paper presents the cavitation erosion research through the stationary specimen method of the X20Cr13 martensitic stainless steel. Actual research involves a number of 4 different tests for this material and the comparison between these experimen