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

Auto cad, Do you provide help with Autocad assignments?

Do you provide help with Autocad assignments?

Risk Analysis, how would I find assistance with such toics as: probability ...

how would I find assistance with such toics as: probability assessment methods, risk modeling, stochatic dominance and multi-attribute methods?

New building completion - fire safety management, Ne w building completion...

Ne w building completion: New buildings have to be constructed to meet certain fire safety standards.  It is not acceptable for buildings to be built that do not attain a min

Wet process of manufacturing of portland cement, What are Portland cement a...

What are Portland cement and its composition? Describe the manufacturing process of cement with diagram.  Manufacturing of Portland cement: Dry and Wet Process,  Describe the

The axial flow compressor - aircraft engine, The axial flow compressor: ...

The axial flow compressor: The axial flow compressor is by far the most popular type of compressor and, although it is more difficult to manufacture, it is a more efficient com

Cash flow diagrams, Cash Flow Diagrams We will use a cash flow approac...

Cash Flow Diagrams We will use a cash flow approach to analyze the flow of money through out a planning horizon. A cash flow occurs when money actually change hands. We will u

Ac/dc conversion, Circuit that is able to convert an AC voltage signal into...

Circuit that is able to convert an AC voltage signal into DC voltage signal

Calculate the relative load of mobile broadband subscribers, Question: ...

Question: (a) A mobile operator wants to weigh and allocate cost towards mobile broadband subscribers with mobile broadband at 80% of the traffic and 15% of the subscribers. H

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