Abstract
A contact-impact model is developed for the rub-induced vibration analysis of a rotating geometric nonlinear plate under thermal shock. The proposed model takes into account different contact positions in the width direction and is capable of adjusting the form of rubbing forces to different system parameters. A series of discussions is carried out to verify the present contact-impact model and the effects of the friction coefficient, the contact stiffness, and thermal transient are investigated. Numerical results show that the contact stiffness plays an important role in chaotic nonlinear vibrations by changing the friction force. The friction force is the main cause of geometric nonlinear chaos motions of the rotating contact-impact plate. Thermal shock results in the divergence of rub-induced vibrations for the geometric nonlinear plate with an increase in the time \(t\). Reducing the time interval before the thermal transient ceases can be an effective way to reduce thermal rub-induced damage.
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Acknowledgments
The authors gratefully acknowledge the reviewers for their comments and suggestions. This research was supported by the National Natural Science Foundation of China Grant 51275081 and the State Key Program of the National Natural Science of China through Grant 51335003.
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Appendix
Appendix
The terms in nonlinear equations of motion
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Yuan, H., Kou, H. Contact-impact analysis of a rotating geometric nonlinear plate under thermal shock. J Eng Math 90, 119–140 (2015). https://doi.org/10.1007/s10665-014-9727-0
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DOI: https://doi.org/10.1007/s10665-014-9727-0