Aero-Engine Compressor Bladed Disk Vibration Measurement Using Blade Tip Timing and Laser Doppler Vibrometry
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F25%3A00637036" target="_blank" >RIV/61388998:_____/25:00637036 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21230/25:00383695
Result on the web
<a href="https://ieeexplore.ieee.org/document/11018094" target="_blank" >https://ieeexplore.ieee.org/document/11018094</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1109/TIM.2025.3574912" target="_blank" >10.1109/TIM.2025.3574912</a>
Alternative languages
Result language
angličtina
Original language name
Aero-Engine Compressor Bladed Disk Vibration Measurement Using Blade Tip Timing and Laser Doppler Vibrometry
Original language description
Ensuring the structural integrity and operational reliability of aero-engine compressors requires precise vibration measurement of rotating blades. Blade tip timing (BTT) is a widely used noncontact measurement technique, but its accuracy is inherently influenced by the blade’s twisted geometry and probe positioning. This study introduces a calibration framework that improves BTT precision by integrating finite element (FE) modeling to account for blade geometry and vibration characteristics. By extracting vibration mode shapes from the FE model and converting them into an equivalent measurement plane, this method enhances the reliability of BTT measurements. The calibration is validated using laser Doppler vibrometry (LDV), which serves as a high-precision reference in controlled laboratory conditions. Results show that this approach significantly reduces measurement discrepancies from 10% to a range of 2%–3%, strengthening BTT’s robustness in industrial applications where LDV is not deployable. In addition, the study establishes a crucial restriction on sensor positioning near the blade tip, identifying areas where BTT probes may fail to capture meaningful data depending on the mode shape. This work lays the foundation for standardized calibration methodologies in turbomachinery health monitoring, ultimately improving predictive maintenance strategies and diagnostics.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
20302 - Applied mechanics
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
IEEE Transactions on Instrumentation and Measurement
ISSN
0018-9456
e-ISSN
1557-9662
Volume of the periodical
74
Issue of the periodical within the volume
June
Country of publishing house
US - UNITED STATES
Number of pages
9
Pages from-to
1011509
UT code for WoS article
001508118600001
EID of the result in the Scopus database
2-s2.0-105007916134