Multistate Reliability Analysis of Recessive Fault of Mechanical Meta-Action Unit Based on Markov Process

Table 1

Calculation table of recessive fault indexes weight (time unit: hours).

Fault name Xm	Mean time before the first failure	Index weight of performance
Coupling slippage X1	3.5	0.071
Flat key slack X2	4	0.082
Worm axis deviation X3	22.4	0.457
Axle bearing heating X4	1.5	0.031
Accidental worm stuck X5	17.6	0.359