Reliability Modelling of CNC Machine Tools Based on the Improved Maximum Likelihood Estimation Method

Figure 10

Comparison of simulation with large scale parameter of Weibull distribution.

(a) β = 0.8, η = 3000, and = 3000 h

(b) β = 1.2, η = 3000, and = 3000 h

(c) β = 1.2, η = 4000, and = 4000 h

(d) β = 1.2, η = 6000, and = 6000 h