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Experimental Investigation of the Blade Tip Timing (BTT) Uncertainties

Xiao, Zhicheng ; Meng, Yiming ; Ouyang, Hua (2022):
Experimental Investigation of the Blade Tip Timing (BTT) Uncertainties. (Publisher's Version)
Darmstadt, FAN 2022 – International Conference on Fan Noise, Aerodynamics, Applications and Systems, Senlis, Frankreich, 27.06.-29.6.2022, DOI: 10.26083/tuprints-00021806,
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Item Type: Conference or Workshop Item
Status: Publisher's Version
Title: Experimental Investigation of the Blade Tip Timing (BTT) Uncertainties
Language: English
Abstract:

The uncertainties of blade tip displacement measurement using BTT are investigated through experiments. A novel test bench is established where the blade deformation can be measured simultaneously by laser displacement sensors and BTT, which enables the determination of the BTT measurement error. It is discovered that the rotational speed fluctuation is the primary factor that degrades the accuracy of BTT. The magnitude of error is dependent on the probe position and could be up to 0.5 mm even when the rotor is driven by a servo. Fortunately, it is also validated that using multiple keyphasors could effectively elevate the accuracy of BTT measurement.

Place of Publication: Darmstadt
Collation: 9 Seiten
Classification DDC: 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften
Divisions: 16 Department of Mechanical Engineering
Event Title: FAN 2022 – International Conference on Fan Noise, Aerodynamics, Applications and Systems
Event Location: Senlis, Frankreich
Event Dates: 27.06.-29.6.2022
Date Deposited: 01 Aug 2022 11:40
Last Modified: 02 Aug 2022 04:44
DOI: 10.26083/tuprints-00021806
URN: urn:nbn:de:tuda-tuprints-218060
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/21806
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