開特性を用いた回転機械の危険速度、減衰比および軸受動特性の推定

Key Points

• The aim is to estimate dangerous speed, damping ratios, and bearing dynamic characteristics from vibration data.
• Used vibration measurement data from actual rotating machinery to estimate open characteristics.
• Extrapolated unmeasured regions of open characteristics to predict dangerous speeds.
• Conducted vibration measurements at speeds exceeding estimated dangerous speeds and verified accuracy using the half-value width method.
• Successfully estimated dangerous speeds and damping ratios based on real measurement data.
• Validated the accuracy of the estimation method through comparisons with actual measurements.
• The approach showed improved precision over previous simulation-only methods.