High performance, direct drive machines for aerospace applications
For aerospace related electric systems, torque/force density, reliability and fault tolerance are of the utmost importance. A method by which high figures of reliability can be achieved is by eliminating any mechanical gearing or interconnection elements between the electrical machine and its mechan...
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| Format: | Thesis (University of Nottingham only) |
| Language: | English |
| Published: |
2013
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| Online Access: | https://eprints.nottingham.ac.uk/14431/ |
| _version_ | 1848791958855614464 |
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| author | Galea, Michael |
| author_facet | Galea, Michael |
| author_sort | Galea, Michael |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | For aerospace related electric systems, torque/force density, reliability and fault tolerance are of the utmost importance. A method by which high figures of reliability can be achieved is by eliminating any mechanical gearing or interconnection elements between the electrical machine and its mechanical load. This means that direct drive, electrical machines must be employed. However, to implement such solutions (without any mechanical advantages), electrical machines with excellent torque density (for rotational machines) and force density (for linear machines) performances are required.
In this work, the main aim is to propose and investigate possible methods for extending and improving the torque/force density capabilities of high performance, state of the art, electrical machines (both rotational and linear). This is done in order to be able to meet the performance requirements while lacking the mechanical advantages synonymous with gearing and/or mechanical interconnections. Novel electro-magnetic and thermal management structures, detailed design and optimisation procedures for electrical machines are presented in this thesis. As vehicles to investigate these novel concepts, a tubular linear, permanent magnet motor and a rotational, synchronous permanent magnet motor are designed, built and experimentally tested. These machines which are both for aerospace related applications serve to show and validate the worthiness of the proposed, performance enhancement measures. |
| first_indexed | 2025-11-14T18:36:47Z |
| format | Thesis (University of Nottingham only) |
| id | nottingham-14431 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T18:36:47Z |
| publishDate | 2013 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-144312025-02-28T11:30:47Z https://eprints.nottingham.ac.uk/14431/ High performance, direct drive machines for aerospace applications Galea, Michael For aerospace related electric systems, torque/force density, reliability and fault tolerance are of the utmost importance. A method by which high figures of reliability can be achieved is by eliminating any mechanical gearing or interconnection elements between the electrical machine and its mechanical load. This means that direct drive, electrical machines must be employed. However, to implement such solutions (without any mechanical advantages), electrical machines with excellent torque density (for rotational machines) and force density (for linear machines) performances are required. In this work, the main aim is to propose and investigate possible methods for extending and improving the torque/force density capabilities of high performance, state of the art, electrical machines (both rotational and linear). This is done in order to be able to meet the performance requirements while lacking the mechanical advantages synonymous with gearing and/or mechanical interconnections. Novel electro-magnetic and thermal management structures, detailed design and optimisation procedures for electrical machines are presented in this thesis. As vehicles to investigate these novel concepts, a tubular linear, permanent magnet motor and a rotational, synchronous permanent magnet motor are designed, built and experimentally tested. These machines which are both for aerospace related applications serve to show and validate the worthiness of the proposed, performance enhancement measures. 2013-10-15 Thesis (University of Nottingham only) NonPeerReviewed application/pdf en arr https://eprints.nottingham.ac.uk/14431/1/601768.pdf Galea, Michael (2013) High performance, direct drive machines for aerospace applications. PhD thesis, University of Nottingham. Rotational electrical machines Linear electrical machines Permanent magnet motors Electric equipment in aeroplanes |
| spellingShingle | Rotational electrical machines Linear electrical machines Permanent magnet motors Electric equipment in aeroplanes Galea, Michael High performance, direct drive machines for aerospace applications |
| title | High performance, direct drive machines for aerospace applications |
| title_full | High performance, direct drive machines for aerospace applications |
| title_fullStr | High performance, direct drive machines for aerospace applications |
| title_full_unstemmed | High performance, direct drive machines for aerospace applications |
| title_short | High performance, direct drive machines for aerospace applications |
| title_sort | high performance, direct drive machines for aerospace applications |
| topic | Rotational electrical machines Linear electrical machines Permanent magnet motors Electric equipment in aeroplanes |
| url | https://eprints.nottingham.ac.uk/14431/ |