Title:
MEASUREMENT METHOD AND MEASUREMENT DEVICE FOR FIVE-DIMENSIONAL VIBRATION OF ROTATING BLADE
Document Type and Number:
WIPO Patent Application WO/2021/208125
Kind Code:
A1
Abstract:
A measurement method for the five-dimensional vibration of a rotating blade: by means of a first arrival moment, a second arrival moment and a first key phase moment when a blade to be measured has no vibrations to be monitored, and a third arrival moment and a second key phase moment when the vibrations occur, the vibration constant deviation of the blade when the blade has no vibrations and the vibration offset amount when the vibrations occur may be obtained; and then actual measurement point coordinates of the blade when the vibrations occur may be obtained in combination with acquired first preset measurement point coordinates on the blade, and finally vibration parameters of the blade in five dimensions of vibrations may be obtained in combination with original position point coordinates of the blade when the blade has no vibrations. The described method may increase the calculation accuracy of vibration measurement results of the rotating blade, and is of great significance to the comprehensive perception of the operating state of the rotating blade and the accurate evaluation of the vibration of the rotating blade. Further provided is a measurement device for the five-dimensional vibration of a rotating blade.
Inventors:
WANG WEIMIN (CN)
ZHANG XULONG (CN)
ZHANG DENGPENG (CN)
HU DONGFANG (CN)
CHEN KANG (CN)
ZHANG XULONG (CN)
ZHANG DENGPENG (CN)
HU DONGFANG (CN)
CHEN KANG (CN)
Application Number:
PCT/CN2020/086268
Publication Date:
October 21, 2021
Filing Date:
April 23, 2020
Export Citation:
Assignee:
UNIV BEIJING CHEM TECH (CN)
International Classes:
G01H17/00; G01M7/02
Foreign References:
| CN105973448A | 2016-09-28 | |||
| CN108731896A | 2018-11-02 | |||
| CN107655429A | 2018-02-02 | |||
| CN110186549A | 2019-08-30 | |||
| CN110319922A | 2019-10-11 | |||
| CN110662948A | 2020-01-07 | |||
| US20120312099A1 | 2012-12-13 |
Other References:
HE CHANGBO, HONGKUN LI, XINWEI ZHAO, WEIMIN WANG, SHUMING WU: "Analysis Method for Under-sampled Blade Tip-timing Signal Based on the Rotational Invariance Technique with Total Least Squares Principle", JIXIE GONEHENG XUEBAI - CHINESE JOURNAL OF MECHANICAL ENGINEERING, JIXIE GONGYE CHUBANCHE, BEIJING, CN, vol. 55, no. 19, 31 October 2019 (2019-10-31), CN , pages 103 - 111, XP055858711, ISSN: 0577-6686, DOI: 10.3901/JME.2019.19.103
SHANG WEN: "Study on the Condition Monitoring and Fault Diagnosis of the Gas Turbine Blade", CHINESE MASTER'S THESES FULL-TEXT DATABASE, TIANJIN POLYTECHNIC UNIVERSITY, CN, 15 August 2015 (2015-08-15), CN , XP055858705, ISSN: 1674-0246
CHEN KANG; WANG WEIMIN; ZHANG XULONG; ZHANG YA: "New step to improve the accuracy of blade tip timing method without once per revolution", MECHANICAL SYSTEMS AND SIGNAL PROCESSING, ELSEVIER, AMSTERDAM, NL, vol. 134, 29 August 2019 (2019-08-29), AMSTERDAM, NL , XP085900034, ISSN: 0888-3270, DOI: 10.1016/j.ymssp.2019.106321
MOHAMED MOHAMED, PHILIP BONELLO, PETER RUSSHARD: "A novel method for the determination of the change in blade tip timing probe sensing position due to steady movements", MECHANICAL SYSTEMS AND SIGNAL PROCESSING, ELSEVIER, AMSTERDAM, NL, vol. 126, 6 March 2019 (2019-03-06), AMSTERDAM, NL , pages 686 - 710, XP055858575, ISSN: 0888-3270, DOI: 10.1016/j.ymssp.2019.02.016
SHANG WEN: "Study on the Condition Monitoring and Fault Diagnosis of the Gas Turbine Blade", CHINESE MASTER'S THESES FULL-TEXT DATABASE, TIANJIN POLYTECHNIC UNIVERSITY, CN, 15 August 2015 (2015-08-15), CN , XP055858705, ISSN: 1674-0246
CHEN KANG; WANG WEIMIN; ZHANG XULONG; ZHANG YA: "New step to improve the accuracy of blade tip timing method without once per revolution", MECHANICAL SYSTEMS AND SIGNAL PROCESSING, ELSEVIER, AMSTERDAM, NL, vol. 134, 29 August 2019 (2019-08-29), AMSTERDAM, NL , XP085900034, ISSN: 0888-3270, DOI: 10.1016/j.ymssp.2019.106321
MOHAMED MOHAMED, PHILIP BONELLO, PETER RUSSHARD: "A novel method for the determination of the change in blade tip timing probe sensing position due to steady movements", MECHANICAL SYSTEMS AND SIGNAL PROCESSING, ELSEVIER, AMSTERDAM, NL, vol. 126, 6 March 2019 (2019-03-06), AMSTERDAM, NL , pages 686 - 710, XP055858575, ISSN: 0888-3270, DOI: 10.1016/j.ymssp.2019.02.016
Attorney, Agent or Firm:
BEIJING SIHAI TIANDA INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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