D. Sc., Prof. Temis J.M., PhD Temis M.J., Egorov A.M.

DOI Number: N/A

Conference number: IFASD-2015-164

The aim of work is to estimate sensitivity dynamics vibration of compact gas turbine rotor supported by gas bearings to the working characteristics: unbalance, damping and temperature. Rotor dynamic model is developed within the limits of research and comprises the shaft model with the details attached, multidisciplinary model of the support with gasdynamic bearing and gas turbine casing model. Gas fluid flow calculation in bearing is based on the solution of the two-dimensional nonlinear Reynolds equation for compressible fluid. Method of successive loadings is implemented with error correction. Shaft model implemented in the calculations is based on the beam theory. Solid rotor model is used for the beam rotor model verification. With the help of this model rotor dynamics investigation is carried out in the whole range of rotating frequencies up to the operating frequency. Orbits of the rotor stationary revolution are determined by the direct integration of equations of rotor motion for particular rotation frequency values up to the operational frequency value. Spectral analysis of rotor revolution orbits is represented. Characteristic regimes of rotor operation and rotor vibration frequencies are calculated.

Read the full paper here

In Categories: 2. IFASD 2015, Rotation System
Email
Print
LinkedIn
The paper above was part of  proceedings of a CEAS event and as such the author has signed a publication agreement to have their paper published in the repository. In the case this paper is found somewhere else CEAS always links to the other source.  CEAS takes great care in making the correct content available to the reader. If any mistakes are found  in the listings please contact us directly at papers@aerospacerepository.org and we will correct the listing promptly.  CEAS cannot be held liable either for mistakes in editorial or technical aspects, nor for omissions, nor for the correctness of the content. In particular, CEAS does not guarantee completeness or correctness of information contained in external websites which can be accessed via links from CEAS’s websites. Despite accurate research on the content of such linked external websites, CEAS cannot be held liable for their content. Only the content providers of such external sites are liable for their content. Should you notice any mistake in technical or editorial aspects of the CEAS site, please do not hesitate to inform us.