Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : November 12, 2022 - November 13, 2022
For the transformer which is general industrial apparatus, electromagnetic noise and earthquake resistance are also important functions. Especially electromagnetic noise serves as an environmental load, so noise control is called for.
Therefore, in order to predict the oscillation characteristic of an iron core correctly, a suitable material constant is needed. This research considers the process of asking for this material constant efficiently. The oscillation characteristic is the eigenvalue and corresponding vibration mode of the iron core can be obtained by experimental modal analysis. This research shows that change of the oscillation characteristic at the time of changing bolt fastening force and bolt positions can be predicted by setting up a suitable material constant using steel sheets which imitated the iron core.
