Influence of the Amplitude of Resonance Vibrations on Fatigue Life of a Compressor Blade with Simulated FOD Damage

• Autorzy: Bednarz Arkadiusz

Identyfikatory

DOI

10.12913/22998624/122485

• Języki publikacji: EN

Abstrakty

EN

This work presents the results of the numerical analyses pertaining to the influence of resonance vibration amplitude on the fatigue life of a compressor blade with a defect made by a collision with a hard object (FOD). The research object was the first stage compressor blade of the PZL-10W engine. The numerical simulation of the notch formation was performed for the tested blade. The material fatigue models (for e-N analysis), three cyclic hardening models, and two mean stress correction models were used in the numerical analyses. As a result of the numerical analysis, the information on the distribution of principal stress was obtained. The values of the principal stresses were used for numerical e-N fatigue analysis using the aforementioned models of fatigue, hardening, and mean stress correction. Obtained results were compared to previously published experimental research, where a notch was created at the leading edge in 8 blades. The blades damaged under laboratory conditions were subjected to experimental fatigue tests during which the effect of resonance amplitude on the number of damage cycles was determined. As a result of the comparison work carried out, the impact of the vibration amplitude on the durability of the element with plastic deformation was determined.

Słowa kluczowe

EN

fatigue life; FOD; vibrations; strain‑life; mean stress correction; compressor blade

PL

życie zmęczeniowe; FOD; wibracje; życie pod napięciem; średnia korekta stresu; łopatka sprężarki

• Wydawca: Lublin University of Technology ; Polish Society of Ecological Engineering (PTIE), Branch of PTIE in Lublin
• Czasopismo: Advances in Science and Technology. Research Journal
• Rocznik: 2020
• Tom: Vol. 14, no 3
• Strony: 22--29
• Opis fizyczny: Bibliogr. 15 poz., fig., tab.

Twórcy

autor

Bednarz Arkadiusz

• Rzeszow University of Technology, Al. Powstancow Warszawy 8, 35-959 Rzeszow

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).