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

Steamtables, How to draw diagrams for Rankine cycle

How to draw diagrams for Rankine cycle

Susceptibility - fire safety management, Susceptibility: Susceptibilit...

Susceptibility: Susceptibility to products of combustion, which includes metabolism, lung capacity, pulmonary disease, allergies, or other physical limitations that affect sur

Industrial &production engneering, what type of topic or subject is gud for...

what type of topic or subject is gud for the project before the final year project

Trading , how to find the net profit of given data

how to find the net profit of given data

Manual override relays, Manual override relays: When the manual-overrid...

Manual override relays: When the manual-override relays are not energised, this current flows through brushes riding on slip rings mounted on the propeller spinner bulkhead and

Keplers’s three laws of planetary motion, Expertsmind.com brings you uniqu...

Expertsmind.com brings you unique solution in electrical engineering -          Ancient people kept track of time and seasons as it affected agriculture. -          Some

Water traetment, what are the different phosphates used in water treatment?...

what are the different phosphates used in water treatment?

.quantifying financial risk, What is the standard deviation of return if we...

What is the standard deviation of return if we have the following two possible outcomes: a rise of 8.00 per cent with 0.58 probability or a fall of -6.00 per cent?

ASSAYMENT, Ask que Discover ambiguities or omissions in the following state...

Ask que Discover ambiguities or omissions in the following statement of requirements for part of a ticket-issuing system: An automated ticket-issuing system sells rail tickets. Use

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