Atkins Rotherham

Engineering Design Consultants

Atkins - the official engineering design services provider for the London 2012 Olympic and Paralympic Games
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Design of Gas Turbine Casting

   

Bennett Associates was commissioned to carry out the Finite Element Analysis and the design optimisation of a compressor discharge case and turbine shell for two of the largest gas turbine units in the world.

Up to this time the turbine shell and discharge casings had been fabrications. It was now intended to produce these very complicated structures as castings.

The ultimate client, a world leader in the supply and manufacture of gas turbine power units, laid down strict parameters for ensuring the final design would satisfy their requirements with regard to "safety, maintainability and inspectability" as defined in the appropriate ASME Design Regulations.

Finite Element computer models were produced with fine enough mesh to accurately predict mechanical and thermal behaviour of the compressor discharge casing and turbine shell under a variety of loadcases.

The loadcases included simulations of normal start up and steady state operating conditions. Path ovality was checked at steady state and at worst state transient conditions.

The design of the 4 way joint between the two main casings was particularly critical. A compliant bolting method had to be designed to ensure the metal to metal joints remained 'gas tight' under all conditions.

Bennett Associates produced the detailed manufacturing, casting and machining drawings requiring many cross sections through the very complex castings.

For more information, contact us on 01709-373782

Related links:
.Fluid Handling - Valve Design and Analysis
.Site Inspections

M G Bennett and Associates Ltd is now part of the Atkins - the official engineering design services provider for the London 2012 Olympic and Paralympic Games Group
Atkins - the official engineering design services provider for the London 2012 Olympic and Paralympic Games
 
Gas Turbine Casting

Design of Gas Turbine Casting
Design of Gas Turbine Casting
Design of Gas Turbine Casting
     
Design of Gas Turbine Casting
Design of Gas Turbine Casting
     
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