Dynamic method of stiffness identification in impacting systems for percussive drilling applications
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- 作者：Maolin Liao m.liao@abdn.ac.uk" class="auth_mail" title="E-mail the corresponding author ; James Ing ; j.ing@abdn.ac.uk" class="auth_mail" title="E-mail the corresponding author ; Mukthar Sayah m.sayah@abdn.ac.uk" class="auth_mail" title="E-mail the corresponding author ; Marian Wiercigroch m.wiercigroch@abdn.ac.uk" class="auth_mail" title="E-mail the corresponding author
- 关键词：Stiffness identification ; Nonlinear time series analysis ; Tangent vector analysis ; Impact oscillator ; Rock impacting system
- 刊名：Mechanical Systems and Signal Processing
- 出版年：2016
- 出版时间：1 December 2016
- 年：2016
- 卷：80
- 期：Complete
- 页码：224-244
- 全文大小：5918 K
文摘
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Stiffness identification of an impacted constraint via analysis of the impact duration is proposed.
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Nonlinear time series analysis and tangent vector analysis are applied to detect the impact durations from dynamical signals.
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The analytical prediction of the impact duration for a stable period-one one-impact motion is developed.
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.The explored monotonic stiffness-impact duration correlation is used to estimate the stiffness of the impacted constraint according to the detected impact duration.