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Chinese Journal of Mechanical Engineering

Table 1 Reliability functions and linear correlation coefficients of the subsystems

From: A Reliability Allocation Method of CNC Lathes Based on Copula Failure Correlation Model

Symbol of subsystems

Reliability function

Linear correlation coefficient r

M

RM(t) = exp[− (t/2157.8)1.3739]

0.985

F

RF(t) = exp[− (t/3184.8)1.7069]

0.956

B

RB(t) = exp[− (t/2066.2)1.3727]

0.993

T

RT(t) = exp[− (t/1971.0)1.2691]

0.982

C

RC(t) = exp[− (t/2415.7)1.5017]

0.949

H

RH(t) = exp[− (t/2279.9)1.2946]

0.987

E

RE(t) = exp[− (t/2410.2)2.2501]

0.984

P

RP(t) = exp[− (t/2435.2)2.1227]

0.985

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