Investigation of vibrations of a main centrifugal fan used in mine ventilation

• Autorzy: Rusiński E. , Moczko P. , Odyjas P. , Pietrusiak D.

Identyfikatory

DOI

10.1016/j.acme.2014.04.003

• Języki publikacji: EN

Abstrakty

EN

Operation of machines in resonance ranges is a great challenge for design engineers. The paper focuses on the analysis of centrifugal fan casing vibrations which during machine operation, particularly in unsteady states, are very strong. Within a series of investigations performed according to the experimental modal analysis natural frequencies of fan casing vibrations were specified. Additional numerical simulations helped to define theoretical values of the natural vibrations frequency and its mode shapes. The results were analyzed and the numerical model was adjusted. The information was later used in the analysis of vibration measurements in real operating conditions. The results achieved for a nine-blade impeller (new type) were compared to results of an old construction eight-blade fan impeller. New solutions, which shall facilitate casing operation beyond resonance frequencies vibrations areas, were proposed.

Słowa kluczowe

EN

rotary machines; unsteady states; vibrations; modal analysis

PL

analiza modalna; wibracje; wentylator promieniowy

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2014
• Tom: Vol. 14, no. 4
• Strony: 569--579
• Opis fizyczny: Bibliogr. 31 poz., rys., tab., wykr.

Twórcy

autor

Rusiński E.

• Department of Machine Design and Research, Faculty of Mechanical Engineering, Wroclaw University of Technology, Lukasiewicza 7/9, 50-371 Wroclaw, Poland

autor

Moczko P.

• Department of Machine Design and Research, Faculty of Mechanical Engineering, Wroclaw University of Technology, Lukasiewicza 7/9, 50-371 Wroclaw, Poland

autor

Odyjas P.

• Department of Machine Design and Research, Faculty of Mechanical Engineering, Wroclaw University of Technology, Lukasiewicza 7/9, 50-371 Wroclaw, Poland

autor

Pietrusiak D.

• Department of Machine Design and Research, Faculty of Mechanical Engineering, Wroclaw University of Technology, Lukasiewicza 7/9, 50-371 Wroclaw, Poland

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