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Wyświetlanie 1-2 z 2
Tytuł:
Straight and Bent Bars Buckling Considered as the Axial Displacement of One Bar End
Autorzy:
Berczyński, Stefan
Dunaj, Paweł
Grządziel, Zenon
Powiązania:
https://bibliotekanauki.pl/articles/2064886.pdf
Data publikacji:
2020
Wydawca:
STE GROUP
Tematy:
buckling
Euler buckling
straight bar
critical force
bent-up bar
Opis:
A new approach has been taken to the problem of straight and bent bar buckling, where bar buckling is considered as a function of axial displacement of one end. It was assumed that the length of a bar being buckled at any instant of buckling is the same as that of a straight bar, regardless of the size of axial displacement of one end of the bar. Based on energy equations, a formula was derived for the value of axial displacement of one bar end or buckling amplitude in the middle of bar length as a function of compressive force. The established relationships were confirmed by simulation tests using the finite element software Midas NFX and by experimental tests.
Źródło:
Multidisciplinary Aspects of Production Engineering; 2020, 3, 1; 57--70
2545-2827
Pojawia się w:
Multidisciplinary Aspects of Production Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modelling and Simulation Testing of Main Bearing Loads and Strains in Crankshafts Caused by Deviations in the Position of the Shaft Journal and Bearing Axes
Autorzy:
Nozdrzykowski, Krzysztof
Grządziel, Zenon
Powiązania:
https://bibliotekanauki.pl/articles/2064685.pdf
Data publikacji:
2020
Wydawca:
STE GROUP
Tematy:
modeling
simulation testing
load
strain
crankshafts
bearing
mounting
geometrical deviation
Opis:
This article presents the results of a simulation, testing the variation of main bearing loads and strains in crankshafts caused by geometrical deviations of the bearing system to justify the necessity and purposefulness of measurements of both the shape and axes position deviations of crankshaft journals. Measurements of these deviations at the existing level of applied measuring techniques are significantly limited. The research also accentuates the practical implementation of a measuring system equipped with the so-called flexible support system for the measured object, developed at the Maritime University of Szczecin. This system makes it possible to eliminate elastic deformations of the crankshaft due to its own weight, whereby the measurements of geometrical deformations of the crankshafts can be carried out with appropriate accuracy in conditions corresponding to the non-reference measurements when determining the object measured in counterpoints. The obtained results have fully confirmed the purposefulness of the conducted research and the validity of the theses.
Źródło:
Multidisciplinary Aspects of Production Engineering; 2020, 3, 1; 41--56
2545-2827
Pojawia się w:
Multidisciplinary Aspects of Production Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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