A Statistical Study on HCF Validation Data for Axial Gas Turbine Compressor Blades

2021 ◽  
Author(s):  
Lukas Schuchard ◽  
Stefano Cerutti ◽  
Matthias Voigt ◽  
Ronald Mailach
Keyword(s):  
Gas Turbine ◽  
Statistical Study ◽  
Compressor Blades ◽  
Validation Data ◽  
Gas Turbine Compressor

Failure Investigation of Frame 6FA Gas Turbine Compressor Blades

2015 ◽  
Vol 69 (2) ◽  
pp. 647-651 ◽  
Author(s):  
M. Swamy ◽  
Kulvir Singh ◽  
A. H. V. Pavan ◽  
Antony Harison M. C. ◽  
G. Jayaraman
Keyword(s):  
Gas Turbine ◽  
Compressor Blades ◽  
Failure Investigation ◽  
Gas Turbine Compressor

Determination of Vibration Amplitudes and Stresses Using the Holography Interference Techniques and Finite Element Method

1983 ◽  
Vol 105 (4) ◽  
pp. 484-488 ◽  
Author(s):  
Z. F. Fu
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Gas Turbine ◽  
Strain Gage ◽  
Present Method ◽  
The Finite Element Method ◽  
Compressor Blades ◽  
Gas Turbine Compressor ◽  
Element Method

A new method which combines the holography interference technique with the finite element method for determining the distribution of vibration amplitudes and stresses of gas turbine compressor blades is presented in this paper. In comparison with the ordinary electrical strain gage method, the present method has the advantage that there is no limitation to the number of measuring points and good results can be obtained even at high order modes.

Vibration Amplitudes of Compressor Blades Resulting From Scatter in Blade Natural Frequencies

1969 ◽  
Vol 91 (3) ◽  
pp. 182-187 ◽  
Author(s):  
R. C. F. Dye ◽  
T. A. Henry
Keyword(s):  
Gas Turbine ◽  
Natural Frequency ◽  
Natural Frequencies ◽  
Model Analysis ◽  
Lumped Parameter Model ◽  
Compressor Blades ◽  
Lumped Parameter ◽  
Gas Turbine Compressor ◽  
Flexible Disk

Intercoupling between blades mounted on a flexible disk is examined employing a lumped-parameter model incorporating damping. Tests carried out on a gas turbine compressor and blades provide frequency and mass parameters for the model. Analysis of the model shows that vibration, and hence stress, in one or more blades, can be magnified if the distribution of blade natural frequency around the disk is suitably chosen. Feasible distributions are examined, leading to stress increases of up to 180 percent.

Aerodynamic Factors of Influence on the Resonance Vibration of Gas Turbine Compressor Blades

2015 ◽  
Vol 47 (5) ◽  
pp. 711-718 ◽  
Author(s):  
Yu. M. Tereshchenko ◽  
E. V. Doroshenko ◽  
A. Tehrani ◽  
J. Abolhassanzade
Keyword(s):  
Gas Turbine ◽  
Resonance Vibration ◽  
Compressor Blades ◽  
Factors Of Influence ◽  
Gas Turbine Compressor

Degradation of Compressor Blades of Gas Turbines in Coastal and Industrial Environment

2016 ◽  
Vol 1133 ◽  
pp. 371-375 ◽  
Author(s):  
Salmi Mohd Yunus ◽  
Saiful Adilin Sekari ◽  
Mohd Hafiz Abdul Ghaffar
Keyword(s):  
Gas Turbine ◽  
Gas Turbines ◽  
Turbine Unit ◽  
Oil Refinery ◽  
Oil Refining ◽  
Degradation Mechanisms ◽  
Gas Turbine Unit ◽  
Compressor Blades ◽  
Industrial Environment ◽  
Gas Turbine Compressor

Gas turbine compressor blades will age and degrade in their operation. There are a lot of factors that will contribute to the degradation mechanisms and its acceleration. These factors encompass the site location, the site conditions including the aspect of air quality, water washing practice, etc. A study undertaken by Materials Engineering Group of TNB Research Sdn Bhd on 2 units of gas turbine compressor those are located near to the sea around Peninsular of Malaysia, to determine the degradation mechanisms of the blades. All these gas turbine units are located in different industrial environment. The first gas turbine unit, so called GTA is located in coastal, petrochemicals production and crude oil refining environment. The second gas turbine unit, so called GTB, located in coastal and industrial environment. The surrounding industries of GTB including oil refinery, chemical, ship fabrication and etc. This paper reports the degradation type of those gas turbine units’ compressor blades with their contributing factors.

Performance of Gas Turbine Compressor Cleaners

1992 ◽  
Author(s):  
H. J. Kolkman
Keyword(s):  
Corrosion Inhibitor ◽  
Gas Turbine ◽  
Corrosion Inhibition ◽  
Gas Turbines ◽  
Jet Engines ◽  
Cleaning Efficiency ◽  
Compressor Blades ◽  
Gas Turbine Compressor

Deposits are regularly removed from compressor blades and vanes of installed jet engines and gas turbines by compressor washing. Hereby a compressor cleaner is sprayed into the compressor while operating at reduced or normal r.p.m. Recently developed compressor cleaners are claimed to be ecologically sound. In addition, many new compressor cleaners contain a corrosion inhibitor. The cleaning efficiency of eight (old and new) compressor cleaners was determined by means of simulated compressor washing of compressor blades that had become foul in service. For the situation simulated, the cleaning efficiency of new, ecologically sound cleaners turned out to be poor as compared with old compressor cleaners. The corrosion inhibition offered by those cleaners that contain a corrosion inhibitor was found to be satisfactory.

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