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ANALIZA PRIVIND CUPLELE DE FRECARE SPECIFICE SERVOVALVELOR ŞI PARTICULARITĂŢILE PROCESELOR TRIBOLOGICE ASOCIATE – partea II
ANALIZA PRIVIND CUPLELE DE FRECARE SPECIFICE SERVOVALVELOR ŞI PARTICULARITĂŢILE PROCESELOR TRIBOLOGICE ASOCIATE – partea II
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ANALIZA PRIVIND CUPLELE DE FRECARE SPECIFICE SERVOVALVELOR ŞI PARTICULARITĂŢILE PROCESELOR TRIBOLOGICE ASOCIATE – partea II
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ANALIZA PRIVIND CUPLELE DE FRECARE SPECIFICE SERVOVALVELOR ŞI PARTICULARITĂŢILE PROCESELOR TRIBOLOGICE ASOCIATE – partea II
ANALIZA PRIVIND CUPLELE DE FRECARE SPECIFICE SERVOVALVELOR ŞI PARTICULARITĂŢILE PROCESELOR TRIBOLOGICE ASOCIATE – partea II

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ANALIZA PRIVIND CUPLELE DE FRECARE SPECIFICE SERVOVALVELOR ŞI PARTICULARITĂŢILE PROCESELOR TRIBOLOGICE ASOCIATE – partea II
ANALIZA PRIVIND CUPLELE DE FRECARE SPECIFICE SERVOVALVELOR ŞI PARTICULARITĂŢILE PROCESELOR TRIBOLOGICE ASOCIATE – partea II
Journal Article

ANALIZA PRIVIND CUPLELE DE FRECARE SPECIFICE SERVOVALVELOR ŞI PARTICULARITĂŢILE PROCESELOR TRIBOLOGICE ASOCIATE – partea II

2021
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Overview
Articolele au ca obiectiv prezentarea principalelor aspecte privind tribologia servovalvelor, principala componentă a sistemelor hidraulice de reglare automată. Sunt identificate şi caracterizate, din punct de vedere tribologic, cuplele caracteristice servovalvelor. Se prezintă formele constructive, materialele din care sunt realizate, cerinţele de calitate realizate prin tratamente termice adecvate şi relaţiile stricte Între dimensiunile funcţionale de bază ale duzei şi ale restrictorului privite În legătură cu fenomenele complexe care apar la curgerea lichidului hidraulic. Sunt prezentate procesele de frecare şi uzare caracteristice servovalvelor, factorii de influenţă specifici şi unele aspecte privind modelele matematice ale procesului de frecare (modelul Coulomb, modelul Stribeck, modelul Helouvry, teoria adeziunii Bowden-Tabor). Frecarea vâscoasă, proprie regimului normal de funcţionare a servovalvelor, respectiv al cuplei sertar-bucşă este analizată cu legea Newton şi În acest context sunt prezentate forţele de presiune şi efectele acestora asupra proceselor tribologice specifice.