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Title:
OBSERVATION DEVICE, OBSERVATION METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2019/202917
Kind Code:
A1
Abstract:
[Problem] To observe a predictor of or the occurrence of unstable operation of a turbo machine. [Solution] An observation device 1 having: a detection unit 10 that is arranged in a turbo machine 2 and has one or more sensors 11 and 12 that have high time-responsiveness and are for observing unsteady behavior in the turbo machine 2; a computation unit 20 to which output signals from the one or more sensors 11 and 12 are input moment by moment, and that integrates time-series data for a prescribed period and calculates in real time a parameter for detecting unsteady operation; and a determination unit 30 that compares the parameter for detecting unsteady operation to a prescribed threshold value, and outputs in real time a determination result regarding a predictor of or the occurrence of unsteady operation.

Inventors:
NISHIZAWA, Toshio (7-44-1 Jindaiji Higashi-machi, Chofu-sh, Tokyo 22, 〒1828522, JP)
KAZAWA, Junichi (7-44-1 Jindaiji Higashi-machi, Chofu-sh, Tokyo 22, 〒1828522, JP)
GOTODA, Hiroshi (1-3 Kagurazaka, Shinjuku-k, Tokyo 01, 〒1628601, JP)
KOBAYASHI, Hiroaki (1-3 Kagurazaka, Shinjuku-k, Tokyo 01, 〒1628601, JP)
HAYASHI, Yuto (1-3 Kagurazaka, Shinjuku-k, Tokyo 01, 〒1628601, JP)
HACHIJO, Takayoshi (1-3 Kagurazaka, Shinjuku-k, Tokyo 01, 〒1628601, JP)
Application Number:
JP2019/012401
Publication Date:
October 24, 2019
Filing Date:
March 25, 2019
Export Citation:
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Assignee:
JAPAN AEROSPACE EXPLORATION AGENCY (7-44-1, Jindaiji Higashi-machi Chofu-sh, Tokyo 22, 〒1828522, JP)
International Classes:
F01D25/00; F02C7/00; F02C9/00; F04D27/02; F23R3/00
Domestic Patent References:
WO2017142707A12017-08-24
Foreign References:
JP2005507056A2005-03-10
JP2007309250A2007-11-29
JP2008014679A2008-01-24
JP2018080621A2018-05-24
JP2018197543A2018-12-13
Attorney, Agent or Firm:
OMORI, Junichi (2nd Floor U&M Akasaka Bldg, 7-5-47 Akasaka Minato-k, Tokyo 52, 〒1070052, JP)
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