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Methodology for Service Life Evaluation of Screens Welded Structures

Authors :
Shkut A. P.
Source :
Журнал інженерних наук, Vol 7, Iss 1, Pp D10-D18 (2024)
Publication Year :
2024
Publisher :
Sumy State University, 2024.

Abstract

The methodology of research on welded assemblies for fastening vibrators is based on modern software products, in particular SolidWorks Simulation in combination with SolidWorks Motion and hot spot stress (HSS) technology. It has been determined that the research on welded assemblies using the SolidWorks Education Edition software package is expedient, considering the most unfavorable situation, when there is a lack of fusion of edges. The solid-state model displays a lack of fusion as a gap between the welded parts. The research on the stress-strain state of welded structures using the finite element method shows that when the computational mesh cell size is reduced, the stress increases significantly, indicating the model singularity and the need for further application of the HSS technology. Research has revealed that the maximum stresses occur in those points of the welds where the longitudinal middle rib is connected to the plate and pipe. It has been determined that the service life of welded joints will exceed 2·106 cycles. To assess the accuracy of calculating the dynamic forces arising during the screen operation, the modeling results using the SolidWorks Motion program are compared with those classical methods that use the Lagrange equation of the second kind. It turned out that the calculation error does not exceed 30 %.

Details

Language :
English, Russian, Ukrainian
ISSN :
23122498 and 24149381
Volume :
7
Issue :
1
Database :
Directory of Open Access Journals
Journal :
Журнал інженерних наук
Publication Type :
Academic Journal
Accession number :
edsdoj.521ca2d0e673439a91791323721474db
Document Type :
article
Full Text :
https://doi.org/10.21272/jes.2024.11(1).d2