Motion Reliability Analysis of Unlocking Trigger Device Based on CPSO-BR-BP Neural Network with Uncertain Parameters

Table 5

Probability distribution characteristics of uncertain parameters.

Uncertainty parameter	Symbol	Unit	Mean	Coefficient of variation	Distribution type
Driving torque		N·mm	786	0.05	Normal distribution
Friction torque of thrust roller bearings		N·mm	229	0.05	Normal distribution
Friction torque of thread pairs		N·mm	245	0.05	Normal distribution