Next Article in Journal
Influence of Organo-Sulfur Compounds with Overbased Calcium Compounds on Lubrication in Cold Forming
Next Article in Special Issue
Specific Features of Aerodynamic Journal Bearings with Elastically Supported Pads
Previous Article in Journal / Special Issue
The Effect of Non-Circular Bearing Shapes in Hydrodynamic Journal Bearings on the Vibration Behavior of Turbocharger Structures
Open AccessFeature PaperArticle

Rotordynamic and Friction Loss Measurements on a High Speed Laval Rotor Supported by Floating Ring Bearings

1
Precision and Microsystems Engineering, Delft University of Technology, Mekelweg 2, 2628 CD Delft, The Netherlands
2
Research and Development, Mitsubishi Turbocharger and Engine Europe, Damsluisweg 2, 1332 EC Almere, The Netherlands
3
Institute of Applied Mechanics, Technische Universität München, 85748 Garching, Germany
*
Author to whom correspondence should be addressed.
Academic Editor: Michel Fillon
Lubricants 2017, 5(1), 7; https://doi.org/10.3390/lubricants5010007
Received: 30 January 2017 / Revised: 22 February 2017 / Accepted: 6 March 2017 / Published: 15 March 2017
(This article belongs to the Special Issue Bearings in Turbomachinery)
Floating ring bearings are the commonly used type of bearing for automotive turbochargers. The automotive industry continuously investigates how to reduce the bearing friction losses and how to create silent turbochargers. Many of these studies involve creating a numerical model of the rotor-bearing system and performing validation on a test bench on which a turbocharger is driven by hot gases. This approach, however, involves many uncertainties which diminish the validity of the measurement results. In this study, we present a test setup in which these uncertainties are minimized. The measurement results show the behavior of the floating ring bearing as a function of oil feed pressure, oil feed temperature, rotor unbalance and bearing clearances. Next to an increased validity, the test setup provides measurement data with good repeatability and can therefore represent a case study which can be used for validation of rotor-bearing models. View Full-Text
Keywords: floating ring bearings; turbocharger; friction losses; rotordynamic; hydrodynamic bearing; laval rotor; oil whirl; sub-synchronous vibration; unbalance floating ring bearings; turbocharger; friction losses; rotordynamic; hydrodynamic bearing; laval rotor; oil whirl; sub-synchronous vibration; unbalance
Show Figures

Figure 1

MDPI and ACS Style

Eling, R.; Te Wierik, M.; Van Ostayen, R.; Rixen, D. Rotordynamic and Friction Loss Measurements on a High Speed Laval Rotor Supported by Floating Ring Bearings. Lubricants 2017, 5, 7.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop