Abstract
The non-linear dynamic characteristics of a flexible rotor supported by externally pressurized hybrid gas bearings are studied in this article. The rotor dynamic equations for the rotor are solved by the Newmark integral method and the gas-lubricated Reynolds equation by the alternating direction implicit method. The multifield coupling algorithm based on the forecasting method is proposed and applied in this article to solve the fluid–structure interaction problem. Also, the non-linear dynamic parameter identification method based on the forecasting orbit method is investigated. It is indicated that the dynamic characteristics of externally pressurized hybrid gas-bearing rotor system and whirling instability of the system reveal the complex behaviour, which could be depicted comprehensively. This would establish the foundation for contributing to a further understanding of the hybrid gas-bearing flexible rotor system.
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Schedule a callMore From: Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology
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