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Turbine Blade Vibrations of Turbochargers
Annotation ability available
Sector:
Event:
Mid-Year Meeting
Language:
English
Abstract
The causes of turbine blade excitation are described, and the factors that influence amplitudes of vibration are discussed. Blade rotation in an asymmetrical pressure field produces a periodic force on the blade. Harmonics of this periodic force excite the blades at their natural frequencies. Gas disturbances created by nozzle vanes also can excite the blades. Amplitudes are affected by the type of exhaust system combined with the type of turbine housing, turbine housing design, engine speed, vane design, and any local gas disturbance or condition that creates asymmetrical gas flow through the turbine housing.
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Topic
Citation
Zastrow, V. and Bernson, E., "Turbine Blade Vibrations of Turbochargers," SAE Technical Paper 670507, 1967, https://doi.org/10.4271/670507.Also In
References
- Fangman C. N. Hoffman J. L. “Turbocharger Shaft Dynamics,” Paper No. 7A SAE Annual Meeting Jan. 13, 1958 Detroit, Michigan
- Fangman C. N. Zastrow V. A. Bobeck J. E. “High Speed Turbocharger Blade Vibration Measurement,” ASME Paper No. 64-WA/OGP-1
- Drake J. R. “Rotating-Beam Fatigue Strength of Cast Nickel-Base Alloys at Elevated Temperatures” ASME PaperNo. 63-WA-214