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Erschienen in:
2017 | OriginalPaper | Buchkapitel
5. Unbalance and Balancing
verfasst von : Osami Matsushita, Masato Tanaka, Hiroshi Kanki, Masao Kobayashi, Patrick Keogh
Erschienen in: Vibrations of Rotating Machinery
Verlag: Springer Japan
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Abstract
Most of the cases of rotor vibration problems come from excessive vibration or resonance due to unbalance. A quick remedy to compensate for it is balancing. Balancing is based on the assumptions of a linear relationship between input (unbalance) and output (vibration), namely,While this linearity is the sole theoretical concept to explain how balancing works, practical methods of balancing include various alternatives based on operators’ experiences. Readers are expected to explore the numerical examples prepared so as to experience a wide variety of techniques.
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The amplitude of unbalance vibration is proportional to the level of unbalance, and
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A shift in the angular position of unbalance on a rotor results in a corresponding phase shift of the vibration waveform.