Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Pawel Dunaj"'
Publikováno v:
IEEE Access, Vol 9, Pp 43837-43844 (2021)
Designing machine tools for in situ machining is a challenging task due to their unique structures and restrictive functional requirements. Such a machine tool should be characterized by low mass, adequate machining accuracy and high machining stabil
Externí odkaz:
https://doaj.org/article/339baa9f1e0a49d49db67381e59acdab
Publikováno v:
Engineering Failure Analysis. 98:72-82
The work describes the actions taken as a result of an unforeseen disaster of a shopping facility that had been in operation for several decades. A considerable part of the facility's roof structure unexpectedly collapsed under the impact of a snow l
Autor:
Paweł Dunaj
Publikováno v:
Polymers, Vol 15, Iss 21, p 4311 (2023)
There is a constant need to predict the dynamic properties of composite materials already at the design stage. A particularly attractive tool for achieving this goal is mesoscale finite element modeling. This paper presents the mesoscale modeling of
Externí odkaz:
https://doaj.org/article/9a30b883977c4c62b5f344b275e4f3b9
Autor:
Izabela Irska, Grzegorz Kramek, Karol Miądlicki, Paweł Dunaj, Stefan Berczyński, Elżbieta Piesowicz
Publikováno v:
Materials, Vol 16, Iss 3, p 1250 (2023)
Structural damping largely determines the dynamic properties of mechanical structures, especially those whose functioning is accompanied by time-varying loads. These loads may cause vibrations of a different nature, which adversely affects the functi
Externí odkaz:
https://doaj.org/article/009332aa0de74795b2c7f052b1877e1d
Publikováno v:
Materials, Vol 15, Iss 19, p 6797 (2022)
The paper presents the finite element modeling of the dynamic properties of a delta robot attached to a steel frame. A distinguishing feature of the proposed modeling method is the application of the Guyan reduction method in modeling of frame founda
Externí odkaz:
https://doaj.org/article/bd5d9b8a4a4a4515952be22da5c7ab6c
Publikováno v:
Materials, Vol 14, Iss 10, p 2644 (2021)
This article presents the results of finite element analyses of the influence of reaction forces on stresses and strains at the contact points of the rollers of prism supports with cylindrical surfaces of the main journals of large-sized crankshafts.
Externí odkaz:
https://doaj.org/article/245f0a01e543489bad302bd013248ba0
Publikováno v:
Sensors, Vol 20, Iss 19, p 5714 (2020)
This article presents a multi-criteria analysis of the errors that may occur while measuring the geometric deviations of crankshafts that require multi-point support. The analysis included in the paper confirmed that the currently used conventional s
Externí odkaz:
https://doaj.org/article/609ca69b3f4f4871ab9b3d949687ce88
Publikováno v:
Materials, Vol 13, Iss 14, p 3151 (2020)
At the stage of designing a special machine tool, it is necessary to analyze many variants of structural solutions of frames and load-bearing systems and to choose the best solution in terms of dynamic properties, in particular considering its resist
Externí odkaz:
https://doaj.org/article/cbd072c212364b34bdb6b3adc491d368
Publikováno v:
Materials, Vol 13, Iss 9, p 2125 (2020)
The paper presents a new way to conduct passive elimination of vibrations consisting of covering elements of structures with low dynamic stiffness with polylactide (PLA). The PLA cover was created in 3D printing technology. The PLA cover was connecte
Externí odkaz:
https://doaj.org/article/33bb2e24aa9040b9992a82271793a078
Publikováno v:
Materials, Vol 13, Iss 7, p 1630 (2020)
This paper presents a method for modeling the dynamic properties of steel–polymer concrete beams, the basic structural components of machine tools, assembly lines, vibratory machines, and other structures subjected to time-varying loads during oper
Externí odkaz:
https://doaj.org/article/b6b5d347008c4d078a79fbbf9ae6a8b1