Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Przemysław Jaszak"'
Publikováno v:
Lubricants, Vol 12, Iss 4, p 103 (2024)
This article presents the results of a study of oil lip seals with a modified outer lip layer texture. In the first step, the interaction of flat rubber samples with different surface layer textures with the steel surface was recognised. Measurements
Externí odkaz:
https://doaj.org/article/d685942935064564ba6440275bfbfe37
Autor:
Konrad Adamek, Przemysław Jaszak
Publikováno v:
Journal of the Brazilian Society of Mechanical Sciences and Engineering. 45
The paper presents the experimental research results and numerical computations of two constructions of a spiral wound gasket with a PTFE filling. The first construction was a standard one in which the shape of the spiral’s windings in a cross sect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::836666f8906152e7b162fd173423e315
https://doi.org/10.1007/s40430-023-04245-3
https://doi.org/10.1007/s40430-023-04245-3
Publikováno v:
Materials; Volume 15; Issue 12; Pages: 4354
The paper presents the proposal of a leakage prediction method in flange joints, after pipeline deformation, based on FEM (Finite Element Methods). The stages of developing the design are discussed, and a complex, multi-stage method of applying the l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::53c391863ab8497480b92e78ec2b25f3
Autor:
Przemysław Jaszak
Publikováno v:
Open Engineering, Vol 11, Iss 1, Pp 56-66 (2020)
The paper presents a new design of semimetal gasket, which has been subjected to the optimization process. The main objective function was to achieve the maximum elastic recovery of the gasket at imposed functional and strength limitations. The objec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f1273c5189c7f180feb353fe5afc18e8
https://doi.org/10.1515/eng-2021-0004
https://doi.org/10.1515/eng-2021-0004
Autor:
Przemysław Jaszak
Publikováno v:
Open Engineering, Vol 9, Iss 1, Pp 329-337 (2019)
The paper presents new type of the semi-metallic gasket characterized with elastic core. Thanks to this solution more elastic recovery as well as more uniform contact stress distribution on the gasket’s surface were obtained which consequently caus
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a8606acb7d7a01b973e553692d5f60b7
https://doaj.org/article/176506191c2a490aa915c3e763f55909
https://doaj.org/article/176506191c2a490aa915c3e763f55909
Autor:
Konrad Adamek, Przemysław Jaszak
Publikováno v:
Open Engineering, Vol 9, Iss 1, Pp 338-349 (2019)
The paper presents the method of design and strength analysis of the flange-gasketed-bolted joint. In the first part, analytical calculations were carried out. Their purpose was to determine the assembly torque of nuts to achieve the desired tightnes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::50ac638522714f39938a369587ca16f2
https://doi.org/10.1515/eng-2019-0031
https://doi.org/10.1515/eng-2019-0031
Publikováno v:
Open Engineering, Vol 9, Iss 1, Pp 321-328 (2019)
The paper presents an quantitative assessment of the wear process of the sealing ring made of pure PTFE cooperating with steel ball of the industrial valve. The three variants of the sealing PTFE ring differing in shape were taken into consideration.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::292bce91a348e2f60160e0c00d2b9beb
https://doi.org/10.1515/eng-2019-0028
https://doi.org/10.1515/eng-2019-0028
Publikováno v:
Open Engineering, Vol 8, Iss 1, Pp 532-538 (2018)
The paper present the method of designing a rubber expansion joints, intended for operation in the pressure class 25 bar. During the design used a numerical analysis,which based on the finite element method (FEM). The results from experimental test w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d3406dafd18c1341d80f178914dfb83e
https://doi.org/10.1515/eng-2018-0065
https://doi.org/10.1515/eng-2018-0065
Autor:
Przemysław Jaszak
Publikováno v:
Journal of the Brazilian Society of Mechanical Sciences and Engineering. 42
The paper presents simulations of mechanical properties of compressed expanded graphite. To model the stress and strain states of compressed expanded graphite, a hyperelastic material model formulated by the Blatz–Ko was adapted. The idea of using
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1366b7e2af0e6f7dcc1527cff653c9bd
https://doi.org/10.1007/s40430-020-02311-8
https://doi.org/10.1007/s40430-020-02311-8
Autor:
Łukasz Walencki, Przemysław Jaszak
Publikováno v:
Open Engineering, Vol 8, Iss 1, Pp 329-336 (2018)
The paper presents the results of the leakage measurements of bolted flanged joints operating at temperature of liquid nitrogen (77K) and ambient temperature. Three types of static gasket were tested. The results were presented in the form of a heliu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c315bf6918e7bc92af0cf96280fbe7b9
https://doi.org/10.1515/eng-2018-0036
https://doi.org/10.1515/eng-2018-0036