| Download | - View final version: Bearing test rig oil flow calibration (PDF, 2.9 MiB)
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| DOI | Resolve DOI: https://doi.org/10.4224/40003715 |
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| Author | Search for: Mulligan, Michael1 |
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| Affiliation | - National Research Council Canada. NRC Institute for Aerospace Research
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| Format | Text, Technical Report |
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| Physical description | 18 p. |
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| Subject | bearing; test rig; oil flow; calibration |
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| Abstract | The Institute for Aerospace Research has recently commissioned a rig for testing rolling element turbine bearings up to a shaft speed of 36000 RPM. Oil can be supplied to the bearing through the inner race or through a number of jets adjacent to the bearing. The rate at which the oil flows is an important measurement that must be made during a test. To measure the oil flow, a turbine flowmeter was installed in the oil supply line. Initially, the turbine meter was calibrated using an OT-150 ballistic flowmeter calibrator located in the laboratory. However, a 2% offset was observed during a calibration check that was performed with a weigh scale and stopwatch. It was anticipated that the variation in the viscosity (~1 at 20°C) of the fluid used in the OT-150 calibrator relative to the oil (~5 at 100°C) was the primary cause of the offset (Baker, 1991). As no reliable correction method could be found from a literature search, an in-situ calibration was performed on the rig with the use of the weigh scale and stopwatch.
This report summarizes the calibration method and includes an uncertainty assessment. |
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| Publication date | 2000-09-18 |
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| Publisher | National Research Council Canada |
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| Series | |
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| Language | English |
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| Peer reviewed | No |
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| NPARC number | 8928602 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | cc0770af-df5f-424d-9a60-b6487eabc4d1 |
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| Record created | 2009-04-23 |
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| Record modified | 2025-12-02 |
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