Solid contaminant is one of the major causes of component failures and system brakedowns in fluid power systems.More than 80% of severe damages can be referred back to the effects of fluid contamination. The traditional approach tothe solution of this problem is the introduction of properly designed filtration elements combined with the developmentof filtration strategies tailored for every application need. This approach can be considered substantially passive in nature,since it allows the contaminant to be present in the fluid and provides means for its removal in order to keep eitherdistribution or density of solid particles within prescribed limits. The passive approach, however, does not allow anydynamic estimation of the damages caused to components by fluid contamination, and the knowledge gained on thecorrelation of fluid contamination to component damage is mainly empirical in nature. The work presented in the paper ispart of a comprehensive activity aimed at correlating solid particle erosion effects to hydraulic fluid (usually mineral oil)contamination level, as defined by existing (ISO and NAS) standards. The tool used to predict solid particles erosion is acomputational fluid dynamics (CFD) solution (obtained using a commercial code) of the flow field inside a hydraulic valve,coupled with lagrangian equation of motion solution for solid particles subject to viscous forces.

Estimation of Erosion Effects Due to Solid Contaminant in Hydraulic Valves / Milani, Massimo; R., Paoluzzi. - STAMPA. - --:(2001), pp. -----. (Intervento presentato al convegno The 1st M.I.T. Conference on Computational Fluid and Solid Mechanics tenutosi a Boston, MU nel --).

Estimation of Erosion Effects Due to Solid Contaminant in Hydraulic Valves

MILANI, Massimo;
2001

Abstract

Solid contaminant is one of the major causes of component failures and system brakedowns in fluid power systems.More than 80% of severe damages can be referred back to the effects of fluid contamination. The traditional approach tothe solution of this problem is the introduction of properly designed filtration elements combined with the developmentof filtration strategies tailored for every application need. This approach can be considered substantially passive in nature,since it allows the contaminant to be present in the fluid and provides means for its removal in order to keep eitherdistribution or density of solid particles within prescribed limits. The passive approach, however, does not allow anydynamic estimation of the damages caused to components by fluid contamination, and the knowledge gained on thecorrelation of fluid contamination to component damage is mainly empirical in nature. The work presented in the paper ispart of a comprehensive activity aimed at correlating solid particle erosion effects to hydraulic fluid (usually mineral oil)contamination level, as defined by existing (ISO and NAS) standards. The tool used to predict solid particles erosion is acomputational fluid dynamics (CFD) solution (obtained using a commercial code) of the flow field inside a hydraulic valve,coupled with lagrangian equation of motion solution for solid particles subject to viscous forces.
2001
The 1st M.I.T. Conference on Computational Fluid and Solid Mechanics
Boston, MU
--
--
--
--
Milani, Massimo; R., Paoluzzi
Estimation of Erosion Effects Due to Solid Contaminant in Hydraulic Valves / Milani, Massimo; R., Paoluzzi. - STAMPA. - --:(2001), pp. -----. (Intervento presentato al convegno The 1st M.I.T. Conference on Computational Fluid and Solid Mechanics tenutosi a Boston, MU nel --).
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/465704
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