Thermo-Mechanical Modelling of Bearing Chambers of a High-Speed Starter/Generator

Rocca, Antonino La; Connor, Peter H.; Xu, Zeyuan; Eastwick, Carol N.; Pickering, Stephen J.; Gerada, Christopher

Abstract

This paper describes the thermal-mechanical characterisation methodology for the bearing chambers of a high-speed (32,000 rpm) electrical starter/generator [1]; presenting a low cost analysis approach and design guideline for future machines. The methodology includes the estimation of the friction losses, overall thermal properties, bearing contact resistances and heat transfer coefficients. An analysis of the heat paths within the chambers, as well as within the whole rotor was carried out, allowing to quantify the heat extracted by the lubricant. The model was developed as part of the thermal-mechanical design of a specific starter/generator but the modelling approach presented within this paper is applicable to any high speed application.

Citation

Rocca, A. L., Connor, P. H., Xu, Z., Eastwick, C. N., Pickering, S. J., & Gerada, C. (2019). Thermo-Mechanical Modelling of Bearing Chambers of a High-Speed Starter/Generator. In 2019 IEEE International Electric Machines & Drives Conference (IEMDC) (322-328). https://doi.org/10.1109/iemdc.2019.8785357

• Conference Name: 2019 IEEE International Electric Machines & Drives Conference (IEMDC)
• Conference Location: San Diego, CA, USA
• Start Date: May 12, 2019
• End Date: May 15, 2019
• Acceptance Date: Feb 18, 2019
• Online Publication Date: Aug 5, 2019
• Publication Date: 2019-05
• Deposit Date: Sep 26, 2019
• Publicly Available Date: Oct 9, 2019
• Publisher: Institute of Electrical and Electronics Engineers
• Pages: 322-328
• Book Title: 2019 IEEE International Electric Machines & Drives Conference (IEMDC)
• ISBN: 9781538693506
• DOI: https://doi.org/10.1109/iemdc.2019.8785357
• Public URL: https://nottingham-repository.worktribe.com/output/2664862
• Publisher URL: https://ieeexplore.ieee.org/abstract/document/8785357
• Additional Information: © 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.”