Modelling and testing of dynamic properties of C0-45 turbochargers

• Autorzy: Budzik G. , Mazurkow A.

Identyfikatory

DOI

10.20858/sjsutst.2017.97.2

• Języki publikacji: EN

Abstrakty

EN

The paper presents modelling process and results of the bench tests of the C0-45, which is a turbocharger for heavy-duty diesel engines. For turbochargers like this, it is necessary to measure the level of vibration. This paper presents the test results for 115 turbochargers. Rotor speed during the tests varied between 25,000 and 42,000 rpm. Rotor speed during the tests on a C0-45 turbocharger varied within three ranges, i.e., Range I: n=25,000÷32,000 rpm and a=0.5g; Range II: n=33,000÷38,000 rpm and a=1.0g; Range III: n=39,000÷42,000 rpm and a=1.5g; (g=9.81m/s2). Measurement of vibrations was realized by a sensor located on the body of the turbocharger. Bench tests also included measurement of key charge parameters such as the amount of mass trapped, mean flow velocities, turbulence level, gas pressure, temperature and oil flow. The results are presented in the form of diagrams showing the amplitude of the acceleration function with regard to the rotor’s RPM. Research shows that using the correct parameters in construction and technological processes of assembly are very important for the effective functioning turbochargers.

Słowa kluczowe

EN

turbocharger; construction parameters; dynamic properties; level of vibration; rotor speed

PL

turbosprężarka; parametry konstrukcyjne; właściwości dynamiczne; poziom wibracji; prędkość wirnika

• Wydawca: Wydawnictwo Politechniki Śląskiej
• Czasopismo: Zeszyty Naukowe. Transport / Politechnika Śląska
• Rocznik: 2017
• Tom: z. 97
• Strony: 17--25
• Opis fizyczny: Bibliogr. 8 poz.

Twórcy

autor

Budzik G.

• Department of Mechanical Engineering. Faculty of Mechanical Engineering and Aeronautics. Rzeszów University of Technology, Al. Powstańców Warszawy 8, 35-959 Rzeszów

autor

Mazurkow A.

• Department of Mechanical Engineering. Faculty of Mechanical Engineering and Aeronautics. Rzeszów University of Technology, Al. Powstańców Warszawy 8, 35-959 Rzeszów

Bibliografia

• 1. Buluschek Bruno. 1980. Das Schwimmbüchsenlager bei stationärem Betrieb. Doctoral thesis. Zürich: ETH. No. 6527,0000.
• 2. Domes Bernd. 1980. Amplituden der Unwucht - und Selbsterregen Schwingungen Hochtouriger mit Rotierenden und nichtrotierenden Schwimmenden Büchsen. [In German: Amplitudes of Unbalance and Self-raising Vibrations at High Speed with Rotating and Non-rotating floating cans.] Dissertation. Universität Karlsruhe.
• 3. Fink Peter.A. 1970. Das Schwimmbüchsenlager unter instationärer Belastung. [In German: The Floating Bush Bearing Under Transient Load.] Dissertation. Zurich: ETH.
• 4. Kiciński Jan. 2005. Dynamika wirników i łożysk ślizgowych. [In Polish: Dynamics of Rotors and Plain Bearings.] Gdańsk: Wydawnictwo Instytutu Maszyn Przepływowych PAN. ISBN 8388237063.
• 5. Krause Reinhold. 1987. Experimentelle Untersuchung eines dynamisch beanspruchten Schwimmbüchsenlagers. [In German: Experimental Investigation of a Dynamically Loaded Swimming Pool Bearing.] Dissertation. Zürich: ETH. DOI 10.3929/ethz-a- 000403016.
• 6. Chin-Hsiu Li, S.H. Rohde 1980. “On steady state and dynamic performance characteristics of floating ring bearings”. ASME Journal of Lubrication Technology 103 (3): 389-397. DOI 10.1115/1.3251687.
• 7. Muszyńska A. 1979. “Modelowanie wirników”. [In Polish: “Rotor modelling”.] IV training course from the Dynamics of Machines series, Jabłonna 5-10 Listopada 1979.
• 8. Zhang W. “Dynamic instability of multi-degree-of-freedom flexible rotor system due to full annular rub”. In Vibrations Rotating Machinery, International Conference, Heriat - Watt University, Edinburgh, 13-15 September 1988.

Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018)