Title:
METHOD FOR EVALUATING HEALTH STATUS OF MECHANICAL DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/080367
Kind Code:
A1
Abstract:
A method for evaluating health status of a mechanical device, comprising: first using a sensor to collect status data of main components on the mechanical device; then carrying out feature extraction to obtain feature parameters; extracting noise data and fault data by using an outlier detection algorithm, and only keeping the fault data; carrying out dimension reduction processing to obtain a feature vector for final evaluation; and finally, carrying out status evaluation of the device, establishing a self-organized mapping neural network model by means of health status data and fault status data, calculating rate impact factors of each group of data to be evaluated by using an entropy weight theory, and introducing the rate impact factors into a neural network for health factor calculation. According to the method, comprehensive status assessment of the mechanical device is realized, the basis is provided for health maintenance of the mechanical device, and unnecessary economic losses are avoided.
Inventors:
LOU PEIHUANG (CN)
GUO DAHONG (CN)
QIAN XIAOMING (CN)
ZHANG JIONG (CN)
GUO DAHONG (CN)
QIAN XIAOMING (CN)
ZHANG JIONG (CN)
Application Number:
PCT/CN2018/071230
Publication Date:
May 02, 2019
Filing Date:
January 04, 2018
Export Citation:
Assignee:
UNIV NANJING AERONAUTICS & ASTRONAUTICS (CN)
MIRACLE AUTOMATION ENGINEERING CORPORATION LTD (CN)
MIRACLE AUTOMATION ENGINEERING CORPORATION LTD (CN)
International Classes:
G01M99/00
Foreign References:
| CN106447040A | 2017-02-22 | |||
| CN105527112A | 2016-04-27 | |||
| CN104159245A | 2014-11-19 | |||
| US20150160098A1 | 2015-06-11 |
Attorney, Agent or Firm:
NANJING JINGWEI PATENT & TRADEMARK AGENCY CO., LTD (CN)
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