Abradable linings-aircraft engine, Other Engineering

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

Posted Date: 9/12/2012 7:46:57 AM | Location : United States







Related Discussions:- Abradable linings-aircraft engine, Assignment Help, Ask Question on Abradable linings-aircraft engine, Get Answer, Expert's Help, Abradable linings-aircraft engine Discussions

Write discussion on Abradable linings-aircraft engine
Your posts are moderated
Related Questions
name the switching schemes used in a digital exchange. how call processing takes place?

draw and explain the working of a positive clamping circuit?

Need urgent help with Financial Management homework assignment - evaluating company "Billabong". Due Fri 8 June (Sydney, australia time).

discuss the values of risk analysis and how it can help in decision making of project management under conditions of uncertainty

How i can have the FLM if i dont have the Total Assets or Shareholders Equity

how to perform division of two laurent polynomials?

Direct probe,isolation probe,high impedence probe,active probe,current probe

Integrator This circuit performs the calculus operation of integration. An operational amplifier with negative feedback applied via a capacitor (instead of a resistor) will pe

what is centrifugal twisting moment

Your objective in this lab is to convince the assessor that you understand the basic concepts of how shock absorbers affect the ride and handling of a vehicle.  This will involve d