Computational Modal Analysis of First stage Gas Turbine Blade

Sushila Rani

doi:https://doi.org/10.51976/ijari.341525

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Computational Modal Analysis of First stage Gas Turbine Blade

Sushila Rani

Vol 3 , Issue 4 , October - December 2015 | Pages: 139-143 | Research Paper

https://doi.org/10.51976/ijari.341525

Received: September 25, 2015 | Revised: October 20, 2015 | Accepted: November 28, 2015 | Published Online: December 15, 2015

Author Details ( * ) denotes Corresponding author

1. * Sushila Rani, Department of Mechanical Engineering, Beant College of Engineering and Technology, Gurdaspur, Punjab, India (sranidtu@gmail.com)

Modal analysis can be a powerful tool to assist in the identification and elimination of fatigue problems. The most obvious use of modal analysis is in determining the natural frequencies of the turbine blades. Knowledge of these frequencies can be very useful in avoiding excessive excitations and thereby reducing the risk of fatigue failure. A less obvious application of modal analysis is in the validation of computer generated models of the turbine blades. These models can be very useful to investigate turbine and turbine blade properties under running conditions. Finite element models can be used to predict the influence of design changes on the stresses and strains acting on the turbine blade under running conditions.

Keywords

Gas Turbine Blade; Computational Modal Analysis; Mode Shape.

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