Scaling in friction experiments

• Autorzy: Rymuza, Z. , Pytko, S.

Warianty tytułu

PL

Problemy skali w badaniach tarcia

• Języki publikacji: EN

Abstrakty

EN

The tribological problems, which have to be taken into consideration in micromachines, micromechanisms, Micro Electro Mechanical Systems (MEMS) devices and components such as silicon micromotors, toothed gears, gas turbines, and others are discussed. In such systems entirely different problems appear as compared with tribological problems in macroscale machines. The research proved that the values of friction parameters in the devices where the contact area is some millimeters square cannot be applied to the situation when the realistic contact area is only some micro- or nanometers square as well when the geometrical dimensions are changed.

PL

Problemy tribologiczne spotykane w mikrourządzeniach, takich jak np. MEMS i w mikrosilnikach krzemowych, a także w przekładniach zębatych, turbinach gazowych, prasach itp. różnią się znacznie między sobą. Różnice te wynikają z różnych skali wymiarowych. Stwierdzono, że zidentyfikowane tarciowe opory ruchu, gdy powierzchnia kontaktu jest w skali milimetrowej, nie mogą być wykorzystywane do prognozowania takich oporów ruchu, gdy powierzchnia kontaktu jest w skali mikro- lub nanometrowej, a także wtedy, gdy wymiary elementów trących znacznie się różnią.

Słowa kluczowe

PL

skalowanie przy tarciu; tarcie w mikroskali; tarcie w nanoskali; adhezja

EN

scaling of friction; microscale friction; nanoscale friction; adhesion

• Czasopismo: Scientific Problems of Machines Operation and Maintenance
• Rocznik: 2010
• Tom: Vol. 45, nr 3
• Strony: 7-18
• Opis fizyczny: Bibliogr. 30 poz., fot., rys.

Twórcy

autor

Rymuza, Z.

autor

Pytko, S.

• Department of Mechatronics (Institute of Micromechanics and Photonics), Warsaw University of Technology, Warsaw, Poland

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