Rubbing Position Identification Device And Rubbing Position

Rubbing Position Identification Device And Rubbing Position Identification Method For Rotating Machine

Abstract: The present invention relates to a rubbing position identification device for a rotating machine provided with a fixed part and a rotating part. This device is provided with an AE sensor, an axial vibration sensor and a rubbing position identification unit. In the case of rubbing occurring in the rotating machine, the rubbing position identification unit calculates the AE phase, which corresponds to the peak of an envelope determined on the basis of change over time in the AE signal detected by the AE sensor, and the axial vibration phase, which corresponds to the high spot position of the rotating part specified on the basis of the change over time in the axial vibration signal detected by the axial vibration sensor, and, on the basis of the phase difference between these, identifies the circumferential-direction position of where rubbing has occurred in the rotating machine.

Patent Information

Application #

Filing Date

29 September 2023

Publication Number

50/2023

Publication Type

INA

Invention Field

MECHANICAL ENGINEERING

Status

Email

Parent Application

Applicants

MITSUBISHI HEAVY INDUSTRIES, LTD.

2-3, Marunouchi 3-Chome, Chiyoda-ku, Tokyo 1008332

Inventors

1. TAKEDA, Hiroki

c/o MITSUBISHI HEAVY INDUSTRIES, LTD., 2-3, Marunouchi 3-Chome, Chiyoda-ku, Tokyo 1008332

2. KUMAGAI, Satoshi

c/o MITSUBISHI HEAVY INDUSTRIES, LTD., 2-3, Marunouchi 3-Chome, Chiyoda-ku, Tokyo 1008332

3. KAWABATA, Ryo

c/o MITSUBISHI HEAVY INDUSTRIES, LTD., 2-3, Marunouchi 3-Chome, Chiyoda-ku, Tokyo 1008332

4. ISHIZAWA, Shuichi

c/o MITSUBISHI HEAVY INDUSTRIES, LTD., 2-3, Marunouchi 3-Chome, Chiyoda-ku, Tokyo 1008332

5. YAMASHITA, Masahiko

c/o Mitsubishi Power, Ltd., 3-1, Minatomirai 3-Chome, Nishi-ku, Yokohama-shi, Kanagawa 2208401

6. TANAKA, Yoshinori

c/o Mitsubishi Power, Ltd., 3-1, Minatomirai 3-Chome, Nishi-ku, Yokohama-shi, Kanagawa 2208401

Specification

Documents

Application Documents

#	Name	Date
1	202317065675-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [29-09-2023(online)].pdf	2023-09-29
2	202317065675-STATEMENT OF UNDERTAKING (FORM 3) [29-09-2023(online)].pdf	2023-09-29
3	202317065675-REQUEST FOR EXAMINATION (FORM-18) [29-09-2023(online)].pdf	2023-09-29
4	202317065675-POWER OF AUTHORITY [29-09-2023(online)].pdf	2023-09-29
5	202317065675-NOTIFICATION OF INT. APPLN. NO. & FILING DATE (PCT-RO-105-PCT Pamphlet) [29-09-2023(online)].pdf	2023-09-29
6	202317065675-FORM 18 [29-09-2023(online)].pdf	2023-09-29
7	202317065675-FORM 1 [29-09-2023(online)].pdf	2023-09-29
8	202317065675-DRAWINGS [29-09-2023(online)].pdf	2023-09-29
9	202317065675-DECLARATION OF INVENTORSHIP (FORM 5) [29-09-2023(online)].pdf	2023-09-29
10	202317065675-COMPLETE SPECIFICATION [29-09-2023(online)].pdf	2023-09-29
11	202317065675-Proof of Right [19-10-2023(online)].pdf	2023-10-19
12	202317065675-FORM 3 [07-11-2023(online)].pdf	2023-11-07