Numerical analysis of seal force in contacting finger seal

• Autorzy: Wei Yuan , Ma Bowen , Li Yi , Schröder Kai-Uwe

Identyfikatory

DOI

10.24425/bpasts.2025.153840

• Języki publikacji: EN

Abstrakty

EN

A finger seal is a flexible sealing device widely used in high-temperature and high-pressure environments such as gas turbines. Its force analysis is the key to the design and optimization of finger seal performance. At present, most of the research on force analysis of finger seals is focused on the whole seal ring, but each finger beam has a different contact performance with the shaft. In this paper, a new force analysis method for contacting finger seals is proposed, as well as the model of finger seals with or without eccentricity is established to analyze the force of a single finger beam. The curved flexible finger beam is transformed into a straight one loaded with a certain moment at the end of it. The force acting on the finger beam is studied and compared with the existing reference to demonstrate the feasibility of the analysis method. By changing each parameter of the finger seal, the relationship between seal force and structural parameter is investigated. It shows that this method is meaningful to the calculation results of seal force for single finger beam and can promote the development of finger seal and make it further in engineering application.

Słowa kluczowe

EN

flexible beam; sealing; seal force; eccentricity; numerical analysis

PL

belka sprężysta; uszczelnianie; siła uszczelnienia; mimośród; analiza numeryczna

• Wydawca: Polska Akademia Nauk, Wydział IV Nauk Technicznych
• Czasopismo: Bulletin of the Polish Academy of Sciences. Technical Sciences
• Rocznik: 2025
• Tom: Vol. 73, nr 3
• Strony: art. no. e153840
• Opis fizyczny: Bibliogr. 26 poz., rys., wykr.

Twórcy

autor

Wei Yuan

• School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, China

• https://orcid.org/0000-0002-9776-3615

autor

Ma Bowen

• School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, China

autor

Li Yi

• School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, China

autor

Schröder Kai-Uwe

• Institute of Structural Mechanics and Lightweight Design, RWTH Aachen University, Wüllnerstraße 7, 52062 Aachen, Germany

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr POPUL/SP/0154/2024/02 w ramach programu "Społeczna odpowiedzialność nauki II" - moduł: Popularyzacja nauki (2025).