Title:
予知保全判定装置、予知保全判定方法及びプログラム
Document Type and Number:
Japanese Patent JP7349971
Kind Code:
B2
Abstract:
To provide a predictive maintenance assessment device, a predictive maintenance assessment method, and a program, with can know the occurrence of abnormality that affects apparatus operation before the abnormality actually occurs.SOLUTION: An average value calculation unit (first calculation unit) of the predictive maintenance assessment device acquires an AE output (signal) outputted in time series by at least one AE sensor installed on the surface of a metal housing of a gear box (apparatus), and calculates a first quantity (e.g., average value) pertaining to the magnitude of the AE output for a prescribed duration of time. A standard deviation calculation unit (second calculation unit) calculates a second quantity (e.g., standard deviation) pertaining to variation in the magnitude of the AE output. Meanwhile, a state display unit displays the first quantity pertaining to the magnitude of the AE output and the second quantity pertaining to variation in the magnitude of the AE output by plotting them on a two-dimensional map with each axis representing each of the first quantity and the second quantity. Since the positions of plotted points indicate the operation state of the gear box, it is possible to find a sign of abnormality occurring to the gear box in advance.SELECTED DRAWING: Figure 6
Inventors:
Shunpei Nakamura
Masao Fujita
Takayuki Nogi
Masao Fujita
Takayuki Nogi
Application Number:
JP2020190331A
Publication Date:
September 25, 2023
Filing Date:
November 16, 2020
Export Citation:
Assignee:
Shibaura Machinery Co., Ltd.
International Classes:
G01N29/14; G01H17/00; G01M13/028; G01N29/48
Domestic Patent References:
| JP2019159841A | ||||
| JP2007315863A | ||||
| JP2017096655A | ||||
| JP4268450A | ||||
| JP2018155661A |
Foreign References:
| WO2015030130A1 |
Attorney, Agent or Firm:
Sakai International Patent Office
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