aeroengineppt

8/3/2019 aeroengineppt

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An engine ormotor is a machine designed toconvert energy into useful mechanical motion.

Heat engines, including internal combustion

engines and external combustion engines (suchas steam engines) burn a fuel to create heat

which is then used to create motion. Electric

motors convert electrical energy in mechanical

motion, pneumatic motors use compressed air

and others, such as wind-up toys use elasticenergy. In biological systems molecular motors

like myosins in muscles use chemical energy to

create motion.

An engine ormotor is a machine designed toconvert energy into useful mechanical motion.

Heat engines, including internal combustion

engines and external combustion engines (suchas steam engines) burn a fuel to create heat

which is then used to create motion. Electric

motors convert electrical energy in mechanical

motion, pneumatic motors use compressed air

and others, such as wind-up toys use elasticenergy. In biological systems molecular motors

like myosins in muscles use chemical energy to

create motion.


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Material is anything made of matter,constituted of one or more substances.

Wood, cement, hydrogen, air and water are

all examples of materials. Sometimes theterm "material" is used more narrowly to

refer to substances or components with

certain physical properties that are used as

inputs to

pro

ductio

nor

manufactur

ing. Inthis sense, materials are the parts required

to make something else, from buildings and

art to stars and computers.


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HPT

High Pressure Turbine

LPT

Low Pressure Turbine

HPC

High Pressure Compressor

LPC

Low Pressure Compressor

Combustor

Fan


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Performance

Costs Reliability &Durability

FuelC

onsumption& Emissions

Increase Life-time limits

and

increase materials

temperature limits

Cost efficient materials and

processes selection

Materials with lower

specific weight for the

compressor and turbine

application

More efficient evaluation of

materials and processes

with the help of new

simulation tools


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Lightweight Metal Alloys

- Aluminium, Magnesium, Titanium Alloys

H

igh Temper

atur

e Metal Allo

ys- Steel, Nickel, Cobalt Alloys

Metal, Non Metal Composites, Intermetallics

-PMCs, MMCs, Intermetallics, CMCs

Environmental Resistance Coatings

- Erosion, Wear, Oxidation, Corrosion and Thermal

Protective Coatings


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MaterialProperties:- Creep Strength-ThermalMechanical Fatigue Strength- Microstructural Stability

max. 1200 CVanes

max. 750 CMaterialProperties: Discs


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MaterialProperties:- Density- Yieldand Rupture Strength- Fatigue Strength (LCF)

Kinetic Energy

CentrifugalLoads


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- MaterialProperties:

- Fatigue Resistance

(LCF, HCF) - Wear, Fretting &

Erosion Resistance

- Oxidation and

Corrosion Resistance


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Quality controlconceptsand technologiesCertifiedand efficient

Manufacturingprocesses

Availability ofmaterials andprocesses


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Complex shaped parts /50.000 per TurbineStage

Modelling of failuremechanism

Efficient andproduction processes

Damage tolerant materials

anddesigns

Safety requirementsfailure rate 1 from 10 9


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MPa

g/cm^3

strengthdensity

Erosion, corrosion, abradable and fretting coatings

temperature C


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