Projects per year
Abstract
Electrical steel sheets of motors and generators are usually shaped to the final form by punching. The punching and other cutting processes generate large plastic deformations and residual stresses. These are known to deteriorate the magnetic properties of the edge region. However, the characterization of this deterioration in the form of magnetic properties is missing. The main aim of this paper is to propose a method to identify the magnetic properties of the edge region based on experimental results. This approach is demonstrated by using previously presented test results for magnetic properties of rectangular strips. The width of these strips is varied, and thus, the share of the edge region to the whole can be used as a variable. Based on this variation, a simple model is developed and the model parameters fitted to the experimental results. The correspondence between the calculated and experimental results is good.
| Original language | English |
|---|---|
| Pages (from-to) | 1049 - 1053 |
| Number of pages | 5 |
| Journal | IEEE Transactions on Industry Applications |
| Volume | 53 |
| Issue number | 2 |
| Early online date | 2016 |
| DOIs | |
| Publication status | Published - 1 Mar 2017 |
| MoE publication type | A1 Journal article-refereed |
Keywords
- electric machines
- magnetic losses
- magnetic materials
- magnetic properties
- punching
- sheet materials
- sheet metal processing
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Projects
- 1 Finished
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ALEM: Additional Losses in Electrical Machines
Lehikoinen, A., Belahcen, A., Upadhaya, B., Osemwinyen, O., Sundaria, R., Aydin, U., Balasubramanian, A., Arkkio, A., Rasilo, P., Razzaq, M., Nair, D., Shah, S., Hemeida, A. & Rouhi, H.
01/03/2014 → 31/05/2019
Project: EU: ERC grants