TY - GEN
T1 - Effect of stress on iron loss of motor core
AU - Takahashi, Norio
AU - Miyagi, Daisuke
PY - 2011/9/14
Y1 - 2011/9/14
N2 - Magnetic properties of a motor core are affected by the distortion due the cutting and the compression caused by a shrink fitting etc. The report which investigates such behavior systematically is few, although the examination of the detailed behavior of magnetic properties is important. In this paper, the mechanical stress due to the shrink fitting is examined and the mechanical stress of an actual stator core is measured by using strain gauges. Iron losses of actual motor cores made of wire cut and punching, and with and without shrink fitting are compared with each other. It is shown that a considerably large compressive mechanical stress is applied by the shrink fitting and the measured mechanical stress is similar to the analytical one. The iron losses of motor processed by wire cut and press become similar values when the compressive force due to the shrink fitting is large.
AB - Magnetic properties of a motor core are affected by the distortion due the cutting and the compression caused by a shrink fitting etc. The report which investigates such behavior systematically is few, although the examination of the detailed behavior of magnetic properties is important. In this paper, the mechanical stress due to the shrink fitting is examined and the mechanical stress of an actual stator core is measured by using strain gauges. Iron losses of actual motor cores made of wire cut and punching, and with and without shrink fitting are compared with each other. It is shown that a considerably large compressive mechanical stress is applied by the shrink fitting and the measured mechanical stress is similar to the analytical one. The iron losses of motor processed by wire cut and press become similar values when the compressive force due to the shrink fitting is large.
KW - Mechanical stress
KW - iron loss
KW - motor core
UR - http://www.scopus.com/inward/record.url?scp=80052597888&partnerID=8YFLogxK
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U2 - 10.1109/IEMDC.2011.5994642
DO - 10.1109/IEMDC.2011.5994642
M3 - Conference contribution
AN - SCOPUS:80052597888
SN - 9781457700613
T3 - 2011 IEEE International Electric Machines and Drives Conference, IEMDC 2011
SP - 469
EP - 474
BT - 2011 IEEE International Electric Machines and Drives Conference, IEMDC 2011
T2 - 2011 IEEE International Electric Machines and Drives Conference, IEMDC 2011
Y2 - 15 May 2011 through 18 May 2011
ER -