A note on optimal ordering policy for deteriorating items with uncertain maximum lifetime

Figures & data

Figure 1. Triangular fuzzy number (TFN).

Figure 2. Level of stock with respect to time.

Figure 3. FTIC with respect to cycle time.

Table 1. Variation with respect to $\tilde{A}$

$\tilde{A}$ (%)	T	$P\left(\tilde{T}C\right)$	Q
−20	0.408236	17,544.67	444.3508
−10	0.409894	17,569.93	446.272
0	0.411543	17,595.09	448.1847
10	0.413183	17,620.15	450.0891
20	0.414816	17,645.11	451.9853

Table 2. Variation with respect to $\tilde{h}$

$\tilde{h}$	T	$P\left(\tilde{T}C\right)$	Q
−20%	0.405847	16,968.64	441.5831
−10%	0.408849	17,282.01	445.0606
(5, 6, 8)	0.411543	17,595.09	448.1847
10%	0.413974	17,907.93	451.0073
20%	0.41618	18,220.56	453.5701

Table 3. Variation with respect to $\tilde{m}$

$\tilde{m}$	T	$P\left(\tilde{T}C\right)$	Q
−20%	0.334507	16,867.24	362.1256
−10%	0.372485	17,229.22	404.4898
(1.9, 2.0, 2.2)	0.411543	17,595.09	448.1847
10%	0.451581	17,964.34	493.0992
20%	0.492518	18,336.55	539.1367

Table 4. Variation with respect to ${\tilde{C}}_p$

${\tilde{C}}_p$	T	$P\left(\tilde{T}C\right)$	Q
−20%	0.420657	14,944.05	458.7791
−10%	0.415965	16,269.94	453.3207
(10, 12, 14)	0.411543	17,595.09	448.1847
10%	0.407366	18,919.56	443.3422
20%	0.403414	20,243.39	438.7676

Table 5. Variation with respect to ${\tilde{C}}_d$

${\tilde{C}}_d$	T	$P\left(\tilde{T}C\right)$	Q
−20%	0.411345	17,401.8	447.9556
−10%	0.411446	17,498.45	448.0722
(5, 6, 7)	0.411543	17,595.09	448.1847
10%	0.411636	17,691.74	448.2933
20%	0.411727	17,788.38	448.3982

Table 6. Variation with respect to D

D	T	$P\left(\tilde{T}C\right)$	Q
−20%	0.415629	14,126.04	362.3442
−10%	0.413365	15,860.64	405.2702
1,000	0.411543	17,595.09	448.1847
10%	0.410044	19,329.45	491.0908
20%	0.40879	21,063.73	533.9906

Figure 4. Variations in cycle time.

Figure 5. Variations in FTIC.

Figure 6. Variations in EOQ.