Quality evaluation device, quality evaluation method, and quality evaluation program for rotary machine
AssigneeMitsubishi Heavy Industries, Ltd.
InventorsYuta Imai, Satoshi Kumagai, Masahiko Yamashita, Yoshinori Tanaka
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Abstract
This quality evaluation device evaluates the quality of a rotary machine having a rotation unit that is supported by a bearing rotatably with respect to a stationary unit. The device acquires an AE signal from at least one AE sensor provided in the stationary unit, and calculates a rubbing detection index on the basis of the AE signal. The device then estimates the amount of wear of the rotary machine by integrating the rubbing detection index.
Claims16
A quality evaluation device for a rotary machine for evaluating a quality of the rotary machine having a rotary portion that is rotatably supported to a stationary portion by a bearing, the device comprising:
- an AE signal acquisition unit for acquiring an AE signal from at least one AE sensor provided at the stationary portion;
- a rubbing detection index calculation unit for calculating a rubbing detection index based on the AE signal;
- and
- a wear amount estimation unit for estimating a wear amount of the rotary machine by integrating the rubbing detection index.
A quality evaluation method for a rotary machine for evaluating a quality of the rotary machine having a rotary portion that is rotatably supported to a stationary portion by a bearing, the method comprising:
- a step of acquiring an AE signal from at least one AE sensor provided at the stationary portion;
- a step of calculating a rubbing detection index based on the AE signal;
- and
- a step of estimating a wear amount of the rotary machine by integrating the rubbing detection index.
A quality evaluation program for a rotary machine for evaluating a quality of the rotary machine having a rotary portion that is rotatably supported to a stationary portion by a bearing, the program causing a computer device to execute:
- a step of acquiring an AE signal from at least one AE sensor provided at the stationary portion;
- a step of calculating a rubbing detection index based on the AE signal;
- and
- a step of estimating a wear amount of the rotary machine by integrating the rubbing detection index.
Dependencies are inferred from the claim text.