Development of a Novel Dynamically Loaded Journal Bearing Test Rig
- Delivery
- Provide download link
- Format
- Price
- Non-members (tax incl.)：￥8,250 Members (tax incl.)：￥6,600
- Paper/Info type
- SAE Paper
No.2021-01-1218
- Pages
- 1-11(Total 11 p)
- Date of publication
- Sep 2021
- Publisher
- SAE International
- Language
- English
- Event
- SAE Powertrains, Fuels & Lubricants Digital Summit
Detailed Information
| Author(E) | 1) Alexander Michlberger, 2) Pruthvi Bachu, 3) Daniel Christopher Bitsis |
|---|---|
| Affiliation(E) | 1) Southwest Research Institute, 2) Southwest Research Institute, 3) Southwest Research Institute |
| Abstract(E) | In this work, a dynamically loaded hydrodynamic journal bearing test rig is developed and introduced. The rig is a novel design, using a hydraulic actuator with fast acting spool valves to apply load to a connecting rod. This force is transmitted through the connecting rod to the large end bearing which is mounted on a spinning shaft. The hydraulic actuator allows for fully variable control and can be used to apply either static load in compression or tension, or dynamic loading to simulate engine operation. A variable speed electric motor controls shaft speed and is synchronized to the hydraulic actuator to accurately simulate loading to represent all four engine strokes. A high precision torque meter enables direct measurements of friction torque, while shaft position is measured via a high precision encoder. Data generated on the test rig is also presented, and includes frictional torque loss, cumulative energy consumption during transient operation, and starting energy during stop/start testing. |
