Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Waldemar DUDDA"'
Publikováno v:
Problemy Mechatroniki, Vol 13, Iss 4, Pp 109-122 (2022)
The article presents issues related to the study on the impact of high-speed foil bearing service loads on the wear of working foils. The work includes a brief introduction, test methodology and a description of the test stand for testing the wear on
Externí odkaz:
https://doaj.org/article/998da294f9da4c5080d53c0abe3186f3
Publikováno v:
Case Studies in Thermal Engineering, Vol 39, Iss , Pp 102457- (2022)
The paper discusses the state of stress in a slowly-closing valve during accelerated start-up of a steam turbine. The valve is one of the first components affected by high temperature gradients and is a key element on which the power, efficiency and
Externí odkaz:
https://doaj.org/article/7495b259b6ae472c9ff6438b52b4fa26
Autor:
Valentyn Skalsky, Mykhaylo Student, Oleh Mokryy, Waldemar Dudda, Yevhen Kharchenko, Halyna Chumalo, Volodymyr Hvozdetskyi
Publikováno v:
Diagnostyka, Vol 22, Iss 3, Pp 51-57 (2021)
The surface layers of low-carbon steel metal subjected to shot peening were studied. The velocity of Rayleigh surface waves of various frequencies in the range of 3-9 MHz by the phase-pulse method using contact piezoelectric transducers measured. The
Externí odkaz:
https://doaj.org/article/bae099220b3345738c7d8ca10fabdc66
Publikováno v:
Case Studies in Thermal Engineering, Vol 28, Iss , Pp 101445- (2021)
Jet impingement cooling technology is applicable to control temperature of devices, where very high heat flux is generated within a small area. This paper is about the improvement of the jet impingement cooling efficiency by the heat sink geometry mo
Externí odkaz:
https://doaj.org/article/d537972132534f5d9ce9b543f6362aae
Autor:
Waldemar Dudda, Bartosz Kraszewski
Publikováno v:
Case Studies in Thermal Engineering, Vol 23, Iss , Pp 100806- (2021)
The paper proposes a comparison of the Huber-Mises-Hencky and the Burzyński thermal effort hypothesis to determine the state of stresses and strains in a structural element undergoing thermally variable cyclic loading. The proposed Burzyński temper
Externí odkaz:
https://doaj.org/article/8c324525439b4ea7b1c33c97aa343950
Autor:
WALDEMAR DUDDA
Publikováno v:
TASK Quarterly, Vol 10, Iss 4 (2006)
A contribution to analytical and numerical tools is presented that permits deterministic evaluation of structures’ behavior under multiparameter and/or cyclic mechanical, thermal and chemical loads. Particular structure elements undergo plastic and
Externí odkaz:
https://doaj.org/article/1290a9f8d9394b07b19648c64cc753f5
Publikováno v:
Acta Mechanica. 233:3453-3465
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e33b628e36c153e2a50dee5482665c3d
https://doi.org/10.1007/s00707-022-03260-0
https://doi.org/10.1007/s00707-022-03260-0
Autor:
Mykhaylo Student, Oleh Mokryy, Halyna Chumalo, Valentyn Skalsky, Volodymyr Hvozdetskyi, Waldemar Dudda, Yevhen Kharchenko
Publikováno v:
Diagnostyka. 22:51-57
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c70e53add126fc417bcf35d1c72813a8
https://doi.org/10.29354/diag/141232
https://doi.org/10.29354/diag/141232
Autor:
Waldemar Dudda
Publikováno v:
Strength of Materials. 52:325-328
A system for recording the contraction of cylindrical specimens under static compression loading was developed based on the original cantilever-type extensometer and the L-Card E-440 analog-todigital converter with Power Graph software for data acqui
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7b50daf3e780d715c7bc1bdf55a5aa39
https://doi.org/10.1007/s11223-020-00181-y
https://doi.org/10.1007/s11223-020-00181-y
Publikováno v:
Materials
Materials; Volume 14; Issue 23; Pages: 7449
Materials, Vol 14, Iss 7449, p 7449 (2021)
Materials; Volume 14; Issue 23; Pages: 7449
Materials, Vol 14, Iss 7449, p 7449 (2021)
This paper presents an improvement in the Huber–Mises–Hencky (HMH) material effort hypothesis proposed by Burzyński. Unlike the HMH hypothesis, it differentiates the plastic effort between compression and tensile load states, and links shear wit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e8ae8a79fd41020e0afd0bda088ad49a
https://pubmed.ncbi.nlm.nih.gov/34885603
https://pubmed.ncbi.nlm.nih.gov/34885603