Performance Analysis of Tyre Manufacturing System in the SMEs Using RAMD Approach

Table 5

RAMD indices for the tyre production system.

RAMD indices	SBM	SBB	SCL	SBC	SEX	SBD	SCU
Reliability	e^−0.008t	e^−0.007t	e^−0.004t	e^−0.005t	e^−0.007t	e^−0.003t	e^−0.002t
Maintainability	1 − e^−0.150t	1 − e^−0.138t	1 − e^−0.290t	1 − e^−0.158t	1 − e^−0.144t	1 − e^−0.244t	1 − e^−0.310t
Availability (faulty)	0.8827	0.8859	0.9344	0.8387	0.8555	0.9339	0.9535
Availability (ideal)	0.9206	0.9153	0.9528	0.8523	0.8982	0.9485	0.9594
Dependability	7.52	7.76	14.24	5.19	5.92	14.12	20.5
MTTR (faulty)	16.61h	18.28h	17.55h	38.46h	23.98h	23.59h	24.38h
MTTR (ideal)	10.78h	13.21h	12.38h	29.34h	16.09h	18.09h	21.15h
MTBF	125.0h	142.8h	250.0h	200.0h	142.0h	333.3h	500.0h
Dep. ratio DMin	0.9025	0.9049	0.9429	0.8701	0.8823	0.9422	0.9582