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http://dx.doi.org/10.5762/KAIS.2017.18.3.711

Measurement of Moment of Inertia of a Small Turbocharger Rotor  

Chung, Jin-Eun (Dept. of Mechanical Engineering, Korea Univ. of Technology and Education)
Jeon, Se-Hun (Dept. of Mechanical Engineering, Graduate School, Korea Univ. of Technology and Education)
Lee, Sang-Woon (Dept. of Mechanical Engineering, Graduate School, Korea Univ. of Technology and Education)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.18, no.3, 2017 , pp. 711-717 More about this Journal
Abstract
Measurements of the moment of inertia of a small turbocharger rotor were studied. A measuring device was manufactured using the trifilar method and the moment of inertia of the calibration rotor was measured to verify the device. The coefficient of variation was 0.43% and the error was 0.75%. The results showed that the device is suitable for measuring the moment of inertia of a turbocharger rotor. Next, the moment of inertia for two turbine rotors and compressor wheels was measured. Those for the turbine rotors showed precise and accurate results in that the coefficients were under 1.0% and the errors were under 3.0%. On the other hand, those for the compressor wheel were precise but inaccurate in that the coefficients were under 1.0% and the errors were over 24.4%. Therefore an indirect method for the compressor wheel was suggested. The results showed that the coefficients were under 1.2% and the errors were under 7.88%.
Keywords
Compressor wheel; Moment of inertia; Small turbocharger; Trifilar method; Turbine rotor;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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