Numerical investigation on the vibration reduction of rotating shaft using different groove shapes of tilt bearing

• Autorzy: Abbood Ahmed Imad , Abdulla Fadhel Abbas

Identyfikatory

DOI

10.29354/diag/168084

• Języki publikacji: EN

Abstrakty

EN

Vibration control is very important for high-speed rotors. Oil film damping is considered an effective vibration-damping method, especially for long shafts in gas turbines, ships, and other high-speed rotating equipment. The existing groove in the internal surface of the tilt bearing increases the amount of oil that flows through the bearing; this is more effective in suppressing the vibration of the rotor system carried by the plain bearing. In order to suppress the vibration of the rotor system, which is supported by sliding bearings, a different groove-shaped oil flow (GSOF) is studied and analysed in this paper. A different shape of grooves in bearings was set up and measured to study the vibration-damping effect of the flow oil shape with GSOF. ANSYS software presents significant benefits to engage Fluent for oil flow with Transient structural for vibration measurements. This paper uses these terms to perform the simulation numerically to explore the groove-shaped damper's damping effect under the rotor system. The study identified three enhancements of vibration and settling time. First, the circular groove showed a 35.71% reduction in amplitude and 10% increase in stilling time; the next one is the circular groove which reduced the amplitude by 42.85% and the settling time by 0%. The third modification was the inclined groove which reduced the amplitude by 42.85% and the settling time by 12%. The last one was the triple-inclined groove, which reduced the amplitude and settling time by 57.14% and 20%, respectively.

Słowa kluczowe

EN

tilt bearings; bearing groove; rotor system; ANSYS transient; fluent; vibration reduction; finite elements

PL

układ wirnikowy; ANSYS; redukcja drgań; badanie numeryczne; łożysko

• Wydawca: Polskie Towarzystwo Diagnostyki Technicznej
• Czasopismo: Diagnostyka
• Rocznik: 2023
• Tom: Vol. 24, No. 3
• Strony: art. no. 2023304
• Opis fizyczny: Bibliogr. 21 poz., rys., tab.

Twórcy

autor

Abbood Ahmed Imad

• Mustansiriyah University, Mechanical Eng. Dep. Baghdad, Iraq

• https://orcid.org/0009-0006-8763-7160

autor

Abdulla Fadhel Abbas

• Mustansiriyah University, Mechanical Eng. Dep. Baghdad, Iraq

• https://orcid.org/0000-0002-7840-0659

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).