IMT Formeln.docx

# IMT Formeln.docx - Nachfrageprognose Exponentielle Glttung...

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Nachfrageprognose Exponentielle Glättung: Erster Wert bei y^t wird initialisiert als durchschnitt oder gegeben, danach formel anwenden a y t-1 +(1-a)y^ t-1 MAD = 1/T * Summe von allen abs(e t ) €t ist abweichung Bestandsmanagement: x = optimale Bestellmenge µ = Nachfrage = (Bedarf/Periode) (Anzahl Perioden) K = fixe Bestellkosten = c = variable Bestellkosten = h = Lagerhaltungskostensatz = r*c r = Opportunitätskosten des Kapitals Kostenfunktion: z (x) = cµ + k µ/x + h x/2 Optimale Bestellmenge x = 2 µK h Kosten: Fixe Bestellkosten = K µ x Lagerhaltungskosten = h x 2 Gesamtkosten = Fixe Bestellkosten + Lagerhaltungskosten Zykluslänge = x µ Bestellpunkt R = (Tagesnachfrage) (Lieferfrist in Tagen) oder alles in Monaten R= Rest ( ¿ T ) * µ -> Bsp LT =5 und T= 3.6056 Dann 5/3.6056=1. 3867 0 .3867 * t*µ

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• Spring '18
• student
• Kosten, Preis, Lagerhaltung, Kostenfunktion, Bestellmenge, Losgröße

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