Author(s): Ehab Ahmed Nossier, Ibrahim Mohamed Omran, Ahmed Ibrahim Abdel-aziz, Gamal Mosaad Hennes
Published in: International Journal of Engineering Research & Technology
License: This work is licensed under a Creative Commons Attribution 4.0 International License.
Volume/Issue: Volume. 5 - Issue. 08 , August - 2016
This paper introduces an experimental-based approach to measure the shaft/bearing clearance of turbocharger without dismantling the assembly. An experimental test rig was designed, constructed, and provided with computer-based sensors to measure and record the test data for further analysis and interpretation. The test rig consisted of a set of shaft/bearing assembly with known different clearances. It is connected to a constant volume air tank through piping and connectors to allow the tank to discharge through the known clearance. The tank pressure and temperature were measured using pressure and temperature transducers and their signals were transmitted to the computer through the proper interface. By means of the constructed test facility, the variation of the tank pressure and temperature are examined in the time domain and are related to the known clearances. Reference curves are constructed in order to use them to determine the shaft/bearing clearance of turbochargers in site without dismantling them, which fulfills the objective of this work. Good estimation is obtained and verified with theoretical analysis using isothermal, isotropic and poly-tropic models.
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