Investigation of Sub-Synchronous Noise & Vibration on Turbocharger Fully Floating Hydrodynamic Bearings – Test & Prediction

Autor: C. Lokesh, D. A. Subramani, S. Praveen Kumar, V. R. Prasanth
Rok vydání: 2019
Předmět:
Zdroj: Advances in Mechanism and Machine Science ISBN: 9783030201302
DOI: 10.1007/978-3-030-20131-9_344
Popis: Automotive engines are facing increased design focus towards downsizing, higher performance and lower emissions, in the process challenging turbocharger (TC) technology to their limits. The rotor of such TC is most commonly supported by hydrodynamic fully-floating or semi-floating bearing systems. These hydro-dynamic bearings exhibit non-linear oil whirl and/or whip in the inner bearing clearance which could translate to objectionable constant tone noise at the vehicle interior. Two variants of fully floating journal bearings are evaluated both numerically and experimentally - hot gas stand and vehicle- and results are presented in this paper.
Databáze: OpenAIRE