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

Climbing drum peel test , Climbing Drum Peel Test The CDP test works by a...

Climbing Drum Peel Test The CDP test works by attaching a free end of a face sheet of a sandwich panel to a drum which then rolls across the panel, peeling off the face sheet. A

Flight control - root location, In a continuous time linear system whenever...

In a continuous time linear system whenever any of the characteristic roots, say λ, has a positive realpart, ie R e (λ) = λ R > 0, then the system is unstable. Stability is ensure

Frequency warping, main difference between warping and without warping

main difference between warping and without warping

Design, 10 vertical examples

10 vertical examples

Power systems, WHY VOLTAGE GENERATED IN MULTIPLES OF 11

WHY VOLTAGE GENERATED IN MULTIPLES OF 11

Fire safety log book, Fire safety log book: The occupier's fire safety...

Fire safety log book: The occupier's fire safety log book should be checked during an inspection to see that the system is being tested regularly and serviced and maintained a

Case study, M/s XYZ Ltd manufactures a product “PLVS” at its plant at Meeru...

M/s XYZ Ltd manufactures a product “PLVS” at its plant at Meerut, the maximum capacity of which is 200 units per month. Details of raw materials which go into the making of 1 units

Human values, what is the basics suggetion for the education values

what is the basics suggetion for the education values

Highway maintenance, Various types of Bituminous Course? Explain each

Various types of Bituminous Course? Explain each

Ticket EM134795S38_1, Do you receive my payment $480 for the Ticket EM13479...

Do you receive my payment $480 for the Ticket EM134795S38_1 today Feb 20/2017? Please inform me to know. My Email is: Thank you

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