DESIGN AND ANALYSIS
OF TURBINE BLADE

ABSTRACT
This project summarizes the design and
analysis of turbine blade, SOLID WORKS is used
for design of solid model and ANSYS software for
analysis for F.E. model generated, by applying
boundary conditions and life assessment of
blade.
The principal aim of this project is to get the
natural frequencies and mode shape of the
turbine blade.

INTRODUCTION
 The purpose of turbine technology are to
extract the maximum quantity of energy from
the working fluid to convert it into useful work
with maximum efficiency by means of a plant
having maximum reliability, minimum cost,
minimum supervision and minimum starting
time.
 The power developed by the turbine can be
increased by increasing the volume of working
fluid at constant pressure or alternatively
increasing the pressure at constant volume.

INTRODUCTION TURBINE BLADE
 To survive in this difficult environment,
turbine blades often use exotic materials like
“titanium alloy” and many different methods of
cooling such as internal cooling and external
cooling.
 Turbine blade face high temperatures, high
stresses, and high vibration. All three of these
factors can lead to blade failures, therefore
turbine blades are carefully designed to resist
these conditions.

Fig2:TURBINE BLADE

TURBINE BLADE MATERIALS
 “Titanium alloy” is a material for
manufacturing of turbine blade. The
properties of turbine is ,
PROPERTIES TITANIUM ALLOY
Density 4700 Kg/m3
Thermal Conductivity 3158 W/m k
Specific Heat 544 J/Kg k
Young’s Modulus 205 Mpa
Poisson Ratio 0.33
Melting point 1649oC
Ultimate Tensile Strength 1070 M pa
Ultimate Compressive Strength 0 Mpa

INTRODUCTION OF SOLID WORKS
This software makes it possible for designers to
quickly sketch out ideas, experiment with features
and dimensions, and produce models and
detailed drawings.
MODEL DESIGN OF BLADE BY USING SOLID
WORKS

TURBINE BLADE
TURBINE BLADE

ANALYSIS OF TURBINE BLADE
 Analysis of a Turbine blade will done in
ANSYS14.5. In analysis of turbine blade we will
find mode shapes and natural frequency.
In ANSYS we have 7 analysis systems for
structural analysis such as ,
1. Static analysis
2. Model analysis
3. Harmonic
4. Transient
5. Spectrum
6. Buckling
7. Dynamic

STATIC ANALYSIS
In static analysis of Turbine blade is
performed by ANSYS software to determine stress
and deflection.
Meshing:

FORCE APPLY ON BLADE
When force is applied on a blade at a point ‘B’
and ‘A’ is the fixed point as shown in below,

DEFORMATION IN BLADE

STRESSES IN A BLADE

SHEAR STRESSES IN A BLADE

STRAIN IN A BLADE

SHEAR STRAIN IN BLADE

RESULT OF STATIC ANALYSIS
MATERIAL TYPE DEFORMATION
(mm)
STRESS
(M pa)
TITANIUM 0.016933 0.2339
SILICON CARBIDE 0.01078 0.2634
NIOBIUM 0.01331 0.5554

MODEL ANALYSIS

RESULT OF MODEL ANALYSIS
MODE Frequency Displacement
MODE 01 97.65 22.47
MODE 02 350.16 38.13
MODE 03 420.24 23.88
MODE 04 605.05 24.61
MODE 04 877.28 45.79
MODE Frequenc
y
Displacement
MODE 01 48.29 47.55
MODE 02 69.63 45.54
MODE 03 212.90 92.45
MODE 04 309.32 54.57
MODE 04 522.34 98.45
MODE Frequency Displacement
MODE 01 48.29 47.55
MODE 02 69.63 45.54
MODE 03 212.90 92.45
MODE 04 309.32 54.57
MODE 04 522.34 98.45
A .TITANIUM B.SILICON CARBIDE
C.NIOBIUM

CFD ANALYSIS ON BLADE
MESHING

PRESSURE,TEMPERATURE & VELOCITY
ON TURBINE BLADE BY USING CFD

RESULTS: TABLE:1 STATIC ANALYSIS RESULTS
MATERIAL TYPE DEFORMATION( mm) STRESS (N/mm2)
TITANIUM 0.016933 0.2339
SILICON CARBIDE 0.01078 0.2634
NIOBIUM 0.01331 0.5554
Mode
shape
TITANIUM SILICON CARBIDE NIOBIUM
MODE 1 97.65 48.29 48.29
MODE 2 350.16 69.63 69.63
MODE 3 420.24 212.90 212.90
MODE 4 605.05 309.32 309.32
MODE 5 877.28 522.34 522.34
TABLE:2 MODEL ANALYSIS RESULTS

DISCUSSIONS
 The displacement and stress values are less for
Titanium when compared to Silicon Carbide , Niobium.
 So, we can conclude that Titanium is better material
for turbine blade.
 On Comparison to existing results ,it is also seen that
Titanium has much better stresses sustained over the
turbine blade.
The modal analysis reveals that the fundamental
frequency of titanium alloy is highest (97Hz) as
compared to all other materials. Hence resonance
delay for this hence dynamically more stable.

REFERENCE
1. H. B. Dong, Proceedings of The Analysis of Grain Selection
during Directional Solidification of Gas Turbine Blades
Journal
2. Mehran Moradi, Mohammadreza Nayebsadeghi Canadian
proceedings of the 3D simulation of the forging process of a
gas turbine blade of nickel-based super alloy Journal on
Mechanical Sciences and Engineering
3. P. Lowden, S. Turcott, M. Perrin, S. Hastie Proceeding of The
Role Of Metallurgical Analysis In Gas Turbine Maintenance
Journal of The Industrial Application Of Gas Turbines
4. Elements of Propulsion Gas Turbines and Rockets By Jack
D.Mattingly
5. Gas turbine theory By H.Choen
6. Gas turbine engineering By Meherwan P. boyce

THANKING YOU SIR
Manneli.Talpagiri
14F81D1510