Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Miroslav Pástor"'
Publikováno v:
Heliyon, Vol 10, Iss 13, Pp e33623- (2024)
In the production of castings, residual stresses arise in the cooling process, the level of which is often unknown. Their significance in engineering practice is very important because they are superposed on the stresses from the service load and are
Externí odkaz:
https://doaj.org/article/10abb2ebbaf44090bdcc65cbfa3363d9
Publikováno v:
Metals, Vol 13, Iss 12, p 2003 (2023)
The paper presents the results of research on the evaluation of the quality of coating layers made by a laser. The base material, which was Dievar steel (1.2343), was coated with a single layer using additional materials in the form of a wire with a
Externí odkaz:
https://doaj.org/article/13367efdf7574497bb1410ecc9e9ad4b
Autor:
Martin Hagara, Miroslav Pástor
Publikováno v:
Journal of Mechanical Engineering, Vol 71, Iss 1, Pp 61-78 (2021)
Understanding the levels of residual stresses in the material is very important in predicting the service life of structural elements. One of the most widely used techniques to quantify them is the drilling method, where a small hole is milled in the
Externí odkaz:
https://doaj.org/article/f988c5d3dffe4a01ab0f5ebb7ff3be56
Publikováno v:
Applied Sciences, Vol 13, Iss 16, p 9406 (2023)
Humanoid and collaborative robots find their application in numerous sectors, such as automotive, electrical and mechanical engineering, not excluding the field of bioengineering. They replace repetitive and often monotonous human activity. As the tr
Externí odkaz:
https://doaj.org/article/5d5f84c286344f7da13e6886538f33a4
Autor:
Milan Sapieta, Vladimír Dekýš, Michal Kaco, Miroslav Pástor, Alžbeta Sapietová, Barbora Drvárová
Publikováno v:
Applied Sciences, Vol 13, Iss 10, p 5988 (2023)
The work aims at validating a methodology for 3D printing of gears with involute gearing and evaluating their mechanical properties using infrared camera. A general methodology for the setup of 3D printing of gears made of polymeric materials has bee
Externí odkaz:
https://doaj.org/article/0d157a512cc14f95bcaa6649158cb38c
Publikováno v:
Applied Sciences, Vol 12, Iss 20, p 10319 (2022)
Experimental measurement methods used in operational mode provide valuable information about the behavior of mechanical parts of equipment that cannot be determined in advance by analytical calculations or numerical modeling. The strain gauge method,
Externí odkaz:
https://doaj.org/article/4267652215374de7be149159f62f5d8b
Publikováno v:
Journal of Mechanical Engineering, Vol 69, Iss 2, Pp 7-14 (2019)
The paper deals with estimation of material properties of single-walled carbon nanotubes (SWCNTs). The SWCNTs are simulated as frames, where carbon atoms are replaced by nodes and interatomic interactions are replaced by beams. The tension and torsio
Externí odkaz:
https://doaj.org/article/76aa48b10f6144f0bde8bfae704d0059
Publikováno v:
Journal of Mechanical Engineering, Vol 68, Iss 4, Pp 41-48 (2018)
The paper deals with design and computation of precise positioning mechanism. The aim of mechanism is to transfer applied load without any change of position of parts in question. The stabilization of position is assured by elastic elements connected
Externí odkaz:
https://doaj.org/article/f22b6ba466de4897896cf4e9a0bb44b6
Publikováno v:
Metals, Vol 12, Iss 3, p 388 (2022)
Residual stresses significantly affect the overall lifetime of constructions. The main disadvantage of residual stresses is that their effect and magnitude is not evident at first sight and can only be reliably determined using experimental methods.
Externí odkaz:
https://doaj.org/article/1e6ec3ac892f4c1393dd3433b0b1356d
Publikováno v:
Applied Sciences, Vol 11, Iss 23, p 11399 (2021)
Preloaded bolted connections are one of the most used approaches for anchoring steel structures and equipment. Preload is induced by a mechanical tightening of the nut with the required torque. In the case of anchor bolts embedded in a concrete base,
Externí odkaz:
https://doaj.org/article/1f87d6a2c4424b858e916cfe4707e61f