Zobrazeno 1 - 10
of 57
pro vyhledávání: '"Sebastian Marian Zaharia"'
Publikováno v:
Nonconventional Technologies Review, Vol 27, Iss 3 (2023)
In this paper, a blade with unconventional structure, corrugations and BERP tip, used in UAV helicopters, was designed, analyzed and additively manufactured. Aerodynamically, the unconventional blade shows better performance compared to the conventio
Externí odkaz:
https://doaj.org/article/acc9223fbc8443e5a60902179ae1075f
Publikováno v:
Nonconventional Technologies Review, Vol 27, Iss 2 (2023)
Additive manufacturing (AM), also known as 3D printing, is a manufacturing process that produces three-dimensional products with complex geometries and shapes by depositing material. In this paper the aim was to manufacture an aircraft with an unconv
Externí odkaz:
https://doaj.org/article/808137e4164f454cb036d61ee3a0ab4b
Publikováno v:
BioResources, Vol 12, Iss 2, Pp 2673-2689 (2017)
Balsa wood is a natural cellular material with an excellent resistance-to-weight ratio that is ideal for manufacturing the core of sandwich structures. In this study, sandwich specimens with a carbon-fiber-reinforced polymer (CFRP) skin and a balsa w
Externí odkaz:
https://doaj.org/article/aaab5e764a16423eb22d16bfbbbf2c24
Autor:
Sebastian Marian ZAHARIA
Publikováno v:
Scientific Bulletin of the ''Petru Maior" University of Tîrgu Mureș, Vol 12 (XXIX), Iss 2, Pp 26-30 (2015)
In this paper, it was described the analysis and simulation process using the CFD technique and the phenomena that shows up in the engineering aero-spatial practice, directing the studies of simulation for the air flows around sailplane. The analysis
Externí odkaz:
https://doaj.org/article/da612bc37b414f67b3e87beb27764c2d
Publikováno v:
Metals, Vol 10, Iss 5, p 645 (2020)
In this study, lightweight sandwich structures with honeycomb cores are proposed and their mechanical properties are investigated through experiments and FEA (finite element analysis) simulation. Sandwich structures were fabricated out of Inconel 718
Externí odkaz:
https://doaj.org/article/2dee12fb8b524fb58fbf2439a8776576
Publikováno v:
Scientific Bulletin of the ''Petru Maior" University of Tîrgu Mureș, Vol 10 (XXVII), Iss 2 (December 2013), Pp 45-48 (2014)
An accelerated life testing is an aging deterioration of a product to induce normal failures by operating at stress levels much higher than would be expected in normal use. Such a test and results derived there from help identify design weaknesses an
Externí odkaz:
https://doaj.org/article/f3b219f84f944b1ba9613c144ee4c71a
Publikováno v:
Fiabilitate şi Durabilitate, Vol 1-Suppl, Iss 1, Pp 257-263 (2014)
In this paper is presented a case study that demonstrates how design to experiments (DOE) information can be used to design better accelerated reliability tests. In the case study described in this paper, will be done a comparison and optimization
Externí odkaz:
https://doaj.org/article/38fd3619b94b4909b8115831bc32f100
Publikováno v:
Fiabilitate şi Durabilitate, Vol 1, Iss 11, Pp 146-152 (2013)
The paper is focused at the study of the reliability and of the lifetime of ball bearings,using reliability accelerated testing. The main objectives of this paper are: the estimation of thelifetime and reliability of ball bearings. Taking into accoun
Externí odkaz:
https://doaj.org/article/cbd3258a093d4e6595ba63d252cf3e78
Publikováno v:
Journal of Industrial Design and Engineering Graphics, Vol 11, Iss 2 (2016)
The ballistic missile model analysed in this paper presents a stringer type fuselage having 10 control surfaces, 8 directional surfaces to execute turns and 2 to execute manoeuvers for changing the angle of attack, but also 4 direction stabilisers. I
Externí odkaz:
https://doaj.org/article/0da568d4da4e4ff1a1508c13aec319ac
Autor:
Sebastian Marian Zaharia
Publikováno v:
Journal of Industrial Design and Engineering Graphics, Vol 10, Iss 3 (2015)
The blade and the rotor’s components belong to the helicopter’s vital parts, parts that if they fail or if they malfunction it will result inevitably in the total destruction of the flying machine. The vibrations are dynamic phenomena usually enc
Externí odkaz:
https://doaj.org/article/af380bf0f71549cbbaa8c47930cc4149