電磁診断技術による転がり軸受の劣化進展過程の計測及び診断
英字タイトル:
Nondestructive Electromagnetic Monitoring and Diagnosis of Damage Growth in Ball Bearings
著者:
馬渡 慎吾 Shingo MAWATARI 角皆 学 Manabu TSUNOKAI 髙瀬 健太郎 Kentaro TAKASE 萱田 良 Ryo KAYATA 宮 健三 Kenzo Miya
発刊日:
公開日:
accelerated life testingball bearingnondestructive electromagnetic detectionsignal processing
Nondestructive Electromagnetic Monitoring and Diagnosis of Damage Growth in Ball Bearings
著者:
馬渡 慎吾 Shingo MAWATARI 角皆 学 Manabu TSUNOKAI 髙瀬 健太郎 Kentaro TAKASE 萱田 良 Ryo KAYATA 宮 健三 Kenzo Miya
発刊日:
公開日:
カテゴリ: 論文
キーワードタグ:accelerated life testingball bearingnondestructive electromagnetic detectionsignal processing
概要
This study evaluates the size of outer race defects of ball bearings during accelerated life testing by analyzing the signal of an electromagnetic sensor. The electromagnetic sensor consists of a pickup coil wrapped around a permanent magnet. When a conductor passes in the static magnetic field, the generated eddy currents are detected as a change of the magnetic field. The autocorrelation method is applied for sizing defects in the early phase of the damage growth and the RMS method is applied for larger defects. With those methods, the growth of the damage is constantly monitored and is shown to be almost linear.
