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A review on dynamic characteristics of blade–casing rubbing

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Abstract

Blade–casing interaction/rubbing can occur under the small blade-tip clearance, which may lead to the rubbing damage, excessive wear of the abradable coating, and efficiency loss caused by the increasing tip leakage flow. Moreover, the rubbing process involves complicated dynamic phenomena, such as friction-induced wear and heat, coupling vibration of the blade and elastic casing, which has recently received a great concern. This paper provides a review on the dynamic characteristics of blade, rotor, and casing as well as the mechanism of coating wear when the rubbing between the blade and bare or coating casing occurs. Firstly, the modeling methods for blade–casing rubbing are categorized into three types in accordance with different casing types, namely models for the rubbing between the blade and bare casing, models for the rubbing between the blade and coating casing without considering wear, and models for the rubbing between the blade and coating casing considering wear. Then, the simulated blade–casing dynamic characteristics due to rubbing are described for both bare and coating casings. After that, the experimental results of the blade–casing rubbing are reviewed and summarized for the bare and coating casings, respectively. Finally, the open problems for blade–casing rubbings are stated, and some recommendations for future research are also pointed out.

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Acknowledgments

This project is supported by Program for the Joint Funds of the National Natural Science Foundation and the Civil Aviation Administration of China (Grant No. U1433109), the Fundamental Research Funds for the Central Universities (Grant Nos. N130403006 and N140301001) for providing financial support for this work. We also thank the anonymous reviewers for their valuable comments on the improvement of presentation.

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Ma, H., Yin, F., Guo, Y. et al. A review on dynamic characteristics of blade–casing rubbing. Nonlinear Dyn 84, 437–472 (2016). https://doi.org/10.1007/s11071-015-2535-x

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