Effect of L/D ratio and clearance of 3-lobe taper land bearing on stability of flexible rotor system (CROSBI ID 700391)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Braut, Sanjin ; Skoblar, Ante ; Štimac Rončević, Goranka ; Žigulić, Roberto
engleski
Effect of L/D ratio and clearance of 3-lobe taper land bearing on stability of flexible rotor system
The present study analyzes the effects of L/D ratio and bearing radial clearance of 3-lobe taper land bearing on stability of flexible rotor system. The pressure distribution in a fluid film journal bearing was calculated using incompressible Reynolds equation, implemented via finite difference method (FDM). Stiffness and damping coefficients were calculated with respect to Sommerfeld number. As an example of flexible rotor system a high speed steam turbine is used. The rotor was modeled with 1d finite elements based on Euler-Bernoulli beam theory. Stability of the flexible rotor system was estimated using logarithmic decrement. Six cases were analyzed and recommendations for optimal bearing configuration were proposed.
3-lobe taper land bearing, L/D ratio, clearance, stability, calculation, flexible rotor system
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Podaci o prilogu
377-387.
2020.
objavljeno
Podaci o matičnoj publikaciji
PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON VIBRATIONS IN ROTATING MACHINERY (ONLINE, UK, 2020)
London : Delhi: CRC Press ; A.A. Balkema Publishers
978-0-367-67742-8
Podaci o skupu
12th International Conference on Vibrations in Rotating Machinery Institution of Mechanical Engineers
predavanje
14.10.2020-15.10.2020
London, Ujedinjeno Kraljevstvo
