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International Journal of Automotive Technology 2007;8(4): 521-531. |
| ANALYSIS OF DOPPLERIZED ACCELERATION SIGNALS IN A ROTATING SHAFT BY USING A VOLD-KALMAN ORDER TRACKING FILTER |
| Hyungseok Kook1, Carl Crane2 |
1Kookmin University
2University of Florida |
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| ABSTRACT |
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Measurement of the vibration transmitted through rotating shafts such as halfshafts in vehicles is of interest in applications such as noise transfer analysis and the study of operating deflections. Vibration signals transmitted through a rotating shaft usually include six degree-of-freedom components, thus making the measurement of vibration a challenging task. In the present work, a new measurement method is presented, one that resolves the minimum of only two one-axis accelerometer signals into all components of vibration with reasonable accuracy. The method utilizes the Dopplerized signals obtained from accelerometers attached to a rotating shaft and a Vold-Kalman order tracking filter to decompose signals into orders of different vibration components. The new method proposed in the present work is verified by simulated run-up test data and applied to an experimentally obtained data set. |
| Key Words:
Rotating shaft vibration, Doppler effects, Vold-Kalman order tracking filter |
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