Patent ID: 11893547
Assignee: CHINA UNIVERSITY OF MINING AND TECHNOLOGY
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 6:
7. The intelligent reliability evaluation and service life prediction method for the kilometer deep well hoist brake according to claim 1, wherein Step ii comprises:
Step ii-1, obtaining, for the specified normal braking working condition and the specified emergency braking working condition respectively, the second braking torque generated by the second contact between the brake gate valve and the brake disc of the target hoist brake under each of the specified normal braking working condition and the specified emergency braking working condition, and then entering Step ii-2;
Step ii-2, obtaining, for the specified normal braking working condition and the specified emergency braking working condition as same as those in Step ii-1 respectively, the first braking torque generated by the first contact between the brake gate valve and the brake disc of the three-dimension-structural finite element simulation model under each of the specified normal braking working condition and the specified emergency braking working condition, and then entering Step ii-3;
Step ii-3, determining, fora second difference between the braking torque corresponding to the three-dimension-structural finite element simulation model and the braking torque corresponding to the target hoist brake under the specified normal braking working condition, as well as a third difference between the braking torque corresponding to the three-dimension-structural finite element simulation model and the braking torque corresponding to the target hoist brake under the specified emergency braking working condition, whether the second difference and the third difference are in a preset difference threshold range or not, wherein in response to the second difference and third difference being in the present difference threshold range, constituting, by the three-dimension-structural finite element simulation model, the digital twin model corresponding to the target hoist brake, else entering Step ii-4;
and Step ii-4, adjusting, according to the second difference and the third difference determined in the Step ii-3, parameters of the three-dimension-structural finite element simulation model as well as the physical action relations among the brake disc, the brake gate valve and the belleville spring, updating the three-dimension-structural finite element simulation model, and then returning to the Step ii-2.