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Dynamic characteristics of high-speed gasoline engine turbocharger based on thermo-elasto-hydrodynamic lubrication bearing model and flexible multibody dynamics method
| Content Provider | SAGE Publishing |
|---|---|
| Author | Gu, Can Song Yuan, Zhao Cheng Yang, Zheng Rui Liu, Jia Xin Li, Hong Liang |
| Copyright Year | 2020 |
| Abstract | A flexible multibody dynamic calculation model based on thermo-elasto-hydrodynamic lubrication bearing model was established. This numerical simulation method provided a more realistic turbocharger calculation model and a more reliable theoretical support for studying the dynamic vibration characteristics of the floating ring bearing turbocharger system. In order to fully consider the dynamic characteristics of each component, the behavior of the floating ring bearing was described by generalized incompressible Reynolds equation in thermo-elasto-hydrodynamic lubrication model. The flexible body substructure models were established by the modal synthesis method. Based on this model, the direct mathematical model of the relationship between the eccentricity of the rotor and the oil film clearance on the turbocharger’s surface vibration was established. The influence of eccentricity and oil film thickness on the surface vibration of the turbocharger body was calculated by transient dynamics method. The results showed that the eccentricity of the rotor and the vibration of turbocharger housing were monotonic functions, but the interaction between the whirl of internal and external oil films made the mechanism of the influence of the oil film thickness on the turbocharger body’s vibration complicated. The research provided a new idea for the structural vibration and synchronous noise control of the supercharger. |
| Related Links | https://journals.sagepub.com/doi/pdf/10.1177/0036850419897712?download=true |
| ISSN | 00368504 |
| Issue Number | 1 |
| Volume Number | 103 |
| Journal | Science Progress (SCI) |
| e-ISSN | 20477163 |
| DOI | 10.1177/0036850419897712 |
| Language | English |
| Publisher | Sage Publications UK |
| Publisher Date | 2020-01-01 |
| Publisher Place | London |
| Access Restriction | Open |
| Rights Holder | © The Author(s) 2020 |
| Subject Keyword | Flexible multibody dynamics turbocharger vibration characteristics TEHD subsynchronous vibration synchronous vibration |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
