Condition-based Maintenance Optimization for Gamma Deteriorating Systems under Performance-based Contracting

Chinese Journal of Mechanical Engineering

Table 4 Optimization results under different policy

C_i	C_p	C_f	T_i	T_p	T_f	Conventional policy						Proposed policy
C_i	C_p	C_f	T_i	T_p	T_f	T₁	T	L_p	EC	A	EP	T₁	T	L_p	EC	A	EP
4	40	200	0.2	4	6	19.56	4.35	36.23	2.22	0.8069	3.92	20.64	3.77	39.07	2.27	0.8141	4.01
					12	19.56	4.35	36.23	2.22	0.8013	3.81	19.81	3.63	38.51	2.23	0.8037	3.85
					18	19.56	4.35	36.23	2.22	0.7957	3.70	19.33	3.51	38.19	2.23	0.7976	3.73
					24	19.56	4.35	36.23	2.22	0.7901	3.59	18.99	3.41	37.98	2.23	0.7932	3.63
4	40	400	0.2	4	6	18.54	3.99	35.45	2.35	0.8003	3.66	19.47	3.54	38.28	2.41	0.8089	3.76
					12	18.54	3.99	35.45	2.35	0.7971	3.59	19.09	3.44	38.04	2.38	0.8022	3.66
					18	18.54	3.99	35.45	2.35	0.7939	3.53	18.82	3.35	37.89	2.37	0.7973	3.58
					24	18.54	3.99	35.45	2.35	0.7907	3.46	18.60	3.27	37.78	2.36	0.7933	3.50
4	40	600	0.2	4	6	18.08	3.67	35.29	2.44	0.7969	3.49	18.90	3.38	37.93	2.51	0.8057	3.60
					12	18.08	3.67	35.29	2.44	0.7944	3.44	18.67	3.30	37.81	2.49	0.8006	3.53
					18	18.08	3.67	35.29	2.44	0.7919	3.39	18.48	3.22	37.72	2.47	0.7965	3.46
					24	18.08	3.67	35.29	2.44	0.7893	3.34	18.33	3.15	37.66	2.47	0.7929	3.39
4	40	800	0.2	4	6	17.79	3.38	35.34	2.52	0.7946	3.37	18.54	3.24	37.75	2.59	0.8034	3.48
					12	17.79	3.38	35.34	2.52	0.7924	3.33	18.38	3.17	37.68	2.57	0.7992	3.41
					18	17.79	3.38	35.34	2.52	0.7902	3.28	18.24	3.10	37.63	2.56	0.7956	3.35
					24	17.79	3.38	35.34	2.52	0.788	3.24	18.12	3.04	37.59	2.55	0.7924	3.30