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  • Summary & Details

Vibration Analysis of Stator Considering the Influence of Varnish


Detailed Information

Author(J)1) 三津橋 直也, 2) 齋藤 泰行
Author(E)1) Naoya Mitsuhashi, 2) Yasuyuki Saito
Affiliation(J)1) 日立製作所, 2) 日立Astemo
Affiliation(E)1) Hitachi, 2) Hitachi Astemo


Abstract(E)Analysis model of stator which is considered the influence of varnish is developed to reduce the vibration of stator. The rigidity of varnish is modeled as anisotropy of coil and the varnish impregnation ratio is modeled as connection area between coil and stator core. As a result, the difference in vibration level due to the change in varnish impregnation ratio can be predicted with an error of 0.2dB. The vibration of stator can be reduced up to 6dB when the varnish impregnation ratio is 40% to 60%.

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