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W artykule przedstawiono wyniki badań symulacyjnych dotyczące półaktywnych bezstykowych uszczelnień czołowych. W tym celu opracowano model matematyczny uszczelnienia bezstykowego, na podstawie którego wyznaczono współczynniki dynamiczne określające właściwości warstewki medium wypełniającego szczelinę promieniową. Sformułowano układ równań różniczkowych zwyczajnych opisujących drgania pierścienia...
The paper presents a mathematical model of the impulse compaction process of moulding sands, based on a description of the impulse head dynamics and the model of deformation and compaction process of moulding sands. It was found that for a simulation examination of the developed model, a necessary and sufficient condition is knowing the coefficients kt (δ) and kc(δ) which characterise viscous and...
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