Abradable linings-aircraft engine, Other Engineering

Assignment Help:

Abradable Linings:

Abradable Linings are usually made of a composite material which will be abraded away should the tip of a rotating blade touch the material. In flight the casings of an engine are subject to large changes in ambient temperature, so they will expand or contract. As we know the air temperature at 30,000ft is close to -50°C this would cause the casings to contract onto the rotor and the blades will then rub. To overcome this problem abrasive materials where used on early engines to wear down the tip of the blades, but this may cause balance problems. So most engines now use abradable linings that maintain minimum tip clearance but do not affect balance. They are usually found on the fan as this is the cold area of the rotating assemblies.

1842_Abradable Linings.png


Related Discussions:- Abradable linings-aircraft engine

Process of fire risk assessment in uk, Process of fire risk assessment: ...

Process of fire risk assessment: In the UK, the process for  the FRA came out of the process for a general risk assessment. In a general risk assessment hazards are identif

Friction welding techniques, Q. Explain briefly the Friction welding techni...

Q. Explain briefly the Friction welding techniques.                                                      OR       Discuss any two solid state welding methods.

Lamination of plastics, Q. Write short note on laminating.           ...

Q. Write short note on laminating.                                                 OR    Explain the Laminating processes.

Aircraft maintance, Explain different types of intakes of aircraft

Explain different types of intakes of aircraft

Audio and video system, why front porch and back porch interval is providin...

why front porch and back porch interval is providing before and after the horizontal simpluses

TANGENT GALVANOMETER, WHY THE NEEDLE OF TANGENT GALVANOMETER DEFLECT WITH I...

WHY THE NEEDLE OF TANGENT GALVANOMETER DEFLECT WITH INCREASING OR DECREASING CURRENT?

Circuit analysis, One thing I have always thought that experienced repair p...

One thing I have always thought that experienced repair people knew about was circuit analysis. I always imagined that when looking at schematics I would be able to figure the vol

Development of surfaces, a hexagonal prism of 40mm side length of base and ...

a hexagonal prism of 40mm side length of base and height 80mm is resting on HP on its base with two edges of base is parallel to horizontal plane. A square hall of equally inclined

Aerospace propulsion systems, Aerospace propulsion is essentially based on ...

Aerospace propulsion is essentially based on Newton'slaws of motion (1687): • A body on which there is no resultant force will move ina straight line with constant velocity.

Genetic algorithm procedure, Genetic Algorithm Procedure Generate a ...

Genetic Algorithm Procedure Generate a "pool" of "genes" randomly These genes are then "mated" to produce the "mated" to produce the next generation Best genes have a

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd