Searched for: subject%3A%22oil%255C+whirl%22
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document
Eling, R.P.T. (author)
In the competitive automotive market, the performance of turbochargers is constantly being pushed towards their theoretical optimum. One of the key components of the turbocharger is the rotor-bearing system, which determines the friction losses and noise output and furthermore affects the overall turbocharger efficiency, reliability and cost. In...
doctoral thesis 2018
document
Eling, R.P.T. (author), te Wierik, M. (author), van Ostayen, R.A.J. (author), Rixen, DJ (author)
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...
journal article 2017
document
van Breemen, F.C. (author)
Self-excited vibrations in Laval rotors supported by hydrodynamic bearings, know as oil whirl, induce friction losses and noise, or may even damage the system. This transient dynamic behaviour is caused by the stable and unstable equilibria in the system. To study this phenomenon, this research uses numerical continuation. This method determines...
master thesis 2016