Material Modelling of Lamination Stack in Electric Machines Jaguar Land Rover

Format:

Book

Conference/Event

Author/Creator:

Goel, Ashish, author.

Contributor:

Faggioli, Thiago

P, Praveen

Sharma, Hiren

Conference Name:

WCX SAE World Congress Experience (2024-04-16 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2024

Summary:

The rotor and stator of electric motors consist of multiple materials, of which steel forms the majority of mass and volume. Steel in electric motors is commonly in the form of thin sheets (laminations), stacked along the axis of the rotor. The structural integrity of such a stack can be ensured using bolting, welding or bonding of the laminations. Predictive mechanical finite element simulations of these laminated stacks can become computationally intense because the steel sheets are thin, and the motor often contains hundreds of them. If the laminations are modelled individually, the size of the elements is very small compared to the overall dimensions and the interface between the laminations need to be modelled as well. In this paper, we present an alternate method of modelling this laminated stack as a single solid body using homogeneous and orthotropic material property, instead of representing each lamination. This provides realistic predictions of mechanical performance, while keeping the computational time significantly lower than modelling separate steel sheets. Modal testing and associated simulations are presented at the stator stack level as well as assembly level where the detailed stator is fitted into a housing

Notes:

Vendor supplied data

Publisher Number:

2024-01-2745

Access Restriction:

Restricted for use by site license