Mode Shape Based Approach to Identify the Location of Crack and the Influence of Crack on Critical Speed of Gas Turbine Disc

2021 ◽  
pp. 303-324
Author(s):  
Ranjan Kumar ◽  
Vinayak Ranjan ◽  
Saikat Chaterjee ◽  
Sanjoy K. Ghoshal
Keyword(s):  
Gas Turbine ◽  
Mode Shape ◽  
Critical Speed ◽  
Turbine Disc

Burst strength analysis of gas turbine disc based on deformation characteristics

2018 ◽  
Author(s):  
Ranjan Kumar ◽  
Sanjoy K. Ghoshal ◽  
Vinayak Ranjan ◽  
Bipin Kumar
Keyword(s):  
Gas Turbine ◽  
Strength Analysis ◽  
Deformation Characteristics ◽  
Burst Strength ◽  
Turbine Disc

Evaluation of oxidation related damage caused to a gas turbine disc alloy between 700 and 800°C

2009 ◽  
Vol 26 (3) ◽  
pp. 241-249 ◽  
Author(s):  
A. Encinas-Oropesa ◽  
N.J. Simms ◽  
J.R. Nicholls ◽  
G.L. Drew ◽  
J. Leggett ◽  
...  
Keyword(s):  
Gas Turbine ◽  
Turbine Disc

High-Speed Rotor Suspension Formed by Fully Floating Hydrodynamic Radial and Thrust Bearings

1964 ◽  
Vol 86 (2) ◽  
pp. 149-160 ◽  
Author(s):  
Juraj Dworski
Keyword(s):  
Gas Turbine ◽  
High Speed ◽  
Critical Speed ◽  
Vibrational Excitation ◽  
Turbine Rotor ◽  
Continuous Operation ◽  
Flexible Rotor ◽  
Actual System ◽  
Apparent Absence ◽  
Thrust Bearings

The hydrodynamic suspension of a 44,000-rpm gas turbine rotor is described with emphasis on interaction between the flexible rotor and its supports. Bearings with relatively large clearances are shown to allow continuous operation at the rotor first critical-speed of 22,000 rpm. The apparent absence of hydrodynamic system instabilities is attributed to the use of simple floating-sleeve bearings. A parametric study of the influence of bearing clearances upon vibrational excitation relief is presented together with test data collected on actual system hardware.

Sign in / Sign up

Export Citation Format

Share Document