Počet záznamů: 1
Experimental validation of FEM-computed stress to tip deflection ratios of aero-engine compressor blade vibration modes and quantification of associated uncertainties
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SYSNO ASEP 0563591 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Experimental validation of FEM-computed stress to tip deflection ratios of aero-engine compressor blade vibration modes and quantification of associated uncertainties Tvůrce(i) Mohamed, E.M. (GB)
Bonello, P. (GB)
Russhard, P. (GB)
Procházka, Pavel (UT-L) RID, ORCID
Mekhalfia, Mohammed Lamine (UT-L)
Tchawou Tchuisseu, Eder Batista (UT-L) ORCIDCelkový počet autorů 6 Číslo článku 109257 Zdroj.dok. Mechanical Systems and Signal Processing. - : Elsevier - ISSN 0888-3270
Roč. 178, October (2022)Poč.str. 25 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova blade tip timing ; FEM validation ; vibration measurements ; blade stresses Vědní obor RIV BI - Akustika a kmity Obor OECD Applied mechanics CEP EF15_003/0000493 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Způsob publikování Open access Institucionální podpora UT-L - RVO:61388998 UT WOS 000808123300001 EID SCOPUS 85130095262 DOI 10.1016/j.ymssp.2022.109257 Anotace Blade Tip Timing (BTT) technology is concerned with the estimation of turbomachinery blade stresses. The stresses are determined from BTT data by relating the measured tip deflection to the stresses via Finite Element (FE) models. The correlation of BTT measurements with FE predictions involves a number of uncertainties. This paper presents the process for validating the FE stress and deflection predictions of aero-engine compressor blades under non-rotation conditions as a critical preliminary step towards the complete understanding of their dynamic behaviour under rotating conditions when using BTT measurements. The process steps are described in detail, including the FE modelling and analysis of the blades and the blade-disk assembly, and the measurements of the blade tip deflection and blade stress. Furthermore, the uncertainties associated with the FE modelling and the measurement processes are quantified. The results show that the FE model is valid considering the control of most uncertainties. The experimental validation of the FE computed stress-to-tip deflection calibration factors in the present study provides the basis for the determination of the calibration factors under rotational conditions using a previously presented BTT data simulator, and for the design of corresponding rotating experiments using BTT. Pracoviště Ústav termomechaniky Kontakt Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Rok sběru 2023 Elektronická adresa https://www.sciencedirect.com/science/article/pii/S0888327022004058/pdfft?isDTMRedir=true&download=true
Počet záznamů: 1