Autor: Pawlus, Pawel - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Climatic Chamber for the Credibility Evaluation of Profilometric Measurements Construction and Control
Autorzy:: Grochalski, Karol
Wieczorowski, Michał
Pawlus, Paweł
Jakubek, Bartosz
Powiązania:: https://bibliotekanauki.pl/articles/102991.pdf
Data publikacji:: 2020
Wydawca:: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:: climatic chamber
thermal distortion
temperature measurement
PID controller
surface topography
komora klimatyczna
zniekształcenie termiczne
pomiar temperatury
regulator PID
topografia powierzchni
Opis:: The paper shows the construction and control of a climatic chamber used for the credibility evaluation of the profilometic measurements. The paper presents a control model using a PID controller and a solution for air circulation. The data regarding the influence of environmental temperature changes on the three-dimensional representation of the surface realized by means of a tactile profilometer were presented. This work shows the temperature characteristics of a climatic chamber.
Źródło:: Advances in Science and Technology. Research Journal; 2020, 14, 3; 135-140
2299-8624
Pojawia się w:: Advances in Science and Technology. Research Journal
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Effects of oil pocket shape and density on friction in reciprocating sliding
Autorzy:: Wos, Slawomir
Koszela, Waldemar
Dzierwa, Andrzej
Reizer, Rafal
Pawlus, Pawel
Powiązania:: https://bibliotekanauki.pl/articles/2087013.pdf
Data publikacji:: 2022
Wydawca:: Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
Tematy:: laser texturing
reciprocating motion
friction
Opis:: The purpose of this work is to study the effect of oil pocket shape and density on friction in reciprocating sliding. The experiments were conducted in reciprocating motion under starved lubrication conditions. Tribological tests were performed using an Optimol SRV5 tribotester. The frictional pair consisted of two discs of 42CrMo4 steel. One disc was laser textured. The oil pockets had circular and sandglass shapes. Disc samples of various texture shapes were characterized by the same pit-area ratios. The operating parameters were the same for all friction pairs. In most cases, surface texturing led to reductions in friction force value and scatter. For both dimple shapes, the best tribological properties were achieved for oil pocket density of 9%. When discs with circular dimples were tested, the highest resistance to motion was received for the highest pit-area ratio of 9%. On the contrary, the worst tribological performance of discs with sandglass-shaped oil pockets of sandglass shape were obtained for the largest oil pocket density of 22%.
Źródło:: Eksploatacja i Niezawodność; 2022, 24, 2; 338--345
1507-2711
Pojawia się w:: Eksploatacja i Niezawodność
Dostawca treści:: Biblioteka Nauki

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