Coasting down signal analysis as a tool for detection of proximity of resonances and a case study

G.V. Rama Rao; R. Sreekala; N. Gopala Krishnan

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Coasting down signal analysis as a tool for detection of proximity of resonances and a case study

机译：滑行信号分析作为检测共振附近的工具和案例研究

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Steady state vibration response of a machinery-supporting structure is strongly influenced by resonances closer to its operating speed. The coasting up/down response of the machinery and the corresponding signal may throw light on the proximity of resonances and precautions can be taken to de-tune it away from the operating frequency. The paper presents the theoretical and experimental background of coasting down response characterized by continuous variation of frequencies. A case study is shown for illustration of the phenomenon and how a large vibration problem in a beam supporting the bearing of a turbo-generator is effectively solved using information obtained from the coasting down signals.

机译：机械支撑结构的稳态振动响应会受到更接近其运行速度的共振的强烈影响。机械的惯性上升/下降响应和相应的信号可能会在共振附近发出信号，可以采取预防措施使其脱离工作频率。本文介绍了以频率连续变化为特征的滑降响应的理论和实验背景。案例研究显示了该现象，并说明了如何使用从滑行下降信号获得的信息有效地解决支撑涡轮发电机轴承的梁中的大振动问题。

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《Engineering failure analysis》 |2011年第1期|共14页
作者
G.V. Rama Rao; R. Sreekala; N. Gopala Krishnan;
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正文语种 eng
中图分类工程力学;
关键词
Transient resonance; Coasting up/down; Machine imbalance; Structural vibration; Reduction of large vibration;

机译：瞬态共振;上下振动;机器不平衡;结构振动;减小大振动;

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1. Coasting down signal analysis as a tool for detection of proximity of resonances and a case study [J] . G.V. Rama Rao, R. Sreekala, N. Gopala Krishnan Engineering failure analysis . 2011,第1期

机译：滑行信号分析作为检测共振附近的工具和案例研究
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4. Analysis of Schumann Resonance Magnetic Signal Observed at Northeast Coast of China [C] . Zhou Hongjuan, Qiao Xiaolin, Yu Haiyan, 2010 First International Conference on Pervasive Computing Signal Processing and Applications . 2010

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5. A prototype for detection of tool collision and gouging using an adaptive resonance theory 2 neural network case study: Sculptured surfaces. [D] . Wangsaputra, Rachmawati. 2002

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6. Electron Spin Resonance Studies of Spin-Labeled Mammalian Cells by Detection of Surface-Membrane Signals [O] . Joseph Kaplan, Peter G. Canonico, William J. Caspary 1973

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Coasting down signal analysis as a tool for detection of proximity of resonances and a case study

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