Aero-Engine Compressor Bladed Disk Vibration Measurement Using Blade Tip Timing and Laser Doppler Vibrometry

Kód výsledku v 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>

Nalezeny alternativní kódy

RIV/68407700:21230/25:00383695

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

Aero-Engine Compressor Bladed Disk Vibration Measurement Using Blade Tip Timing and Laser Doppler Vibrometry

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Aero-Engine Compressor Bladed Disk Vibration Measurement Using Blade Tip Timing and Laser Doppler Vibrometry

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20302 - Applied mechanics

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

IEEE Transactions on Instrumentation and Measurement

ISSN

0018-9456

e-ISSN

1557-9662

Svazek periodika

74

Číslo periodika v rámci svazku

June

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

1011509

Kód UT WoS článku

001508118600001

EID výsledku v databázi Scopus

2-s2.0-105007916134