公开(公告)号：US20190005400A1

公开(公告)日：2019-01-03

申请号：US15555517

申请日：2016-11-30

Applicant: SOUTHWEST PETROLEUM UNIVERSITY

Inventor： Qingyou LIU ,  Yang TANG ,  Guorong WANG ,  Jiajia JING ,  Yan YANG ,  Haiyan ZHU ,  Zhengwei ZOU

IPC: G06N5/04 ,  G06N7/00

Abstract: The present invention discloses mechanical equipment running state fuzzy evaluation and prediction methods with occurrence probability of failure modes. The evaluation method includes the following steps: S1, determining a product set and a failure mode set thereof: S2, determining a feature set corresponding to each failure mode; S3, calculating the degradation degree of each feature; S4, calculating the occurrence probability of each failure mode; S5, calculating the membership degree of the occurrence probability of each failure mode; S6, fuzzy comprehensive evaluation is applied to the running state of the part; and S7, fuzzy comprehensive evaluation is applied to the running state of mechanical equipment. The invention further discloses a mechanical equipment running state prediction method.