turbine disc

turbine disc

turbine disc
The drum or the disc to which the turbine blades are attached. It is forged and then machined with an integral shaft or flange onto which the shaft may be bolted. To limit the effect of heat conduction from the turbine blades to the disc, a flow of cooling air is passed across both sides of each disc.
References in periodicals archive ?
The NTSB also said the investigation concluded the explosion was caused when a turbine disc failed in a way that had never been seen before and shattered.
Sundararaman, "High temperature low cycle fatigue deformation behaviour of forged IN 718 superalloy turbine disc," Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing, vol.
[14] conducted the CCF test to study the extrapolation of turbine disc. Schweizer et al.
The sixth disc is a free turbine disc, which consists of an Inconel alloy to withstand the high temperature loads from the postcombustion gases.
Schlett and Bush [8] were dealing with this problem on the weld joints and heat affected zone of the turbine disc because of the sulphur accumulation on the weld surfaces, residual stress and lowered capability of forming of weld joints.
A large section of turbine disc crashed into a house, but there were no injuries to anyone either on the plane or on the ground.
In that case, a defective engine pipe leaked oil, sparking a fire that destroyed a turbine disc and sent pieces of the disc into the plane's wing, an Australian safety report said.
In last year's engine blowout, a turbine disc disintegrated and sent supersonic shards of metal through the aircraft's wing, severing systems and narrowly missing the cabin.
In that case a defective engine pipe leaked oil, sparking a fire that destroyed a turbine disc and sent pieces of the disc into the plane's wing, an Australian safety report said.
The number 2 engine sustained an uncontained failure of the Intermediate Pressure (IP) turbine disc soon after takeoff from Changi Airport, Singapore, for Sydney, Australia.
When the Number 2 engine exploded at 7000 feet, fragments of the turbine disc and other engine parts had reportedly torn through the wing and struck the fuselage, wrecking many critical flight systems and causing fuel to stream from the craft.
Rolls has isolated the cause of the failure to a specific component in the turbine of the Trent 900 engine, which sparked an oil fire and led to the release of a turbine disc.