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Turbine blade fir-tree root design optimisation using intelligent CAD and finite element analysis

Turbine blade fir-tree root design optimisation using intelligent CAD and finite element analysis
Turbine blade fir-tree root design optimisation using intelligent CAD and finite element analysis
This paper is concerned with automation and optimisation of the design of a turbine blade fir-tree root by incorporating a knowledge based intelligent computer-aided design system (ICAD) and finite element analysis. Various optimisation algorithms have been applied in an effort to optimise the shape against a large number of geometric and mechanical constraints drawn from industrial experience in the development of such a structure. Attention is devoted to examining the effects of critical geometric features on the stress distribution at the interface between the blade and disk using a feature-based geometry modelling tool and the optimisation techniques. Various aspects of this problem are presented: (1) geometry representation using ICAD and transfer of the geometry to a finite element analysis code, (2) application of boundary conditions/loads and retrieval of analysis results, (3) exploration of various optimisation methods and strategies including gradient-based and modern stochastic methods. A product model from Rolls-Royce is used as a base design in the optimisation.
intelligent cad, design optimisation, finite element analysis, genetic algorithms
0045-7949
1853-1867
Song, Wenbin
390dc209-bfcb-4986-8362-c25b40272307
Keane, Andy
26d7fa33-5415-4910-89d8-fb3620413def
Rees, Janet
9caccbae-e72c-4377-87ec-66fed11800d4
Bhaskar, Atul
d4122e7c-5bf3-415f-9846-5b0fed645f3e
Bagnall, Steven
4c32424a-9b06-4902-912c-8d03a0ac964f
Song, Wenbin
390dc209-bfcb-4986-8362-c25b40272307
Keane, Andy
26d7fa33-5415-4910-89d8-fb3620413def
Rees, Janet
9caccbae-e72c-4377-87ec-66fed11800d4
Bhaskar, Atul
d4122e7c-5bf3-415f-9846-5b0fed645f3e
Bagnall, Steven
4c32424a-9b06-4902-912c-8d03a0ac964f

Song, Wenbin, Keane, Andy, Rees, Janet, Bhaskar, Atul and Bagnall, Steven (2002) Turbine blade fir-tree root design optimisation using intelligent CAD and finite element analysis. Computers & Structures, 80 (24), 1853-1867. (doi:10.1016/S0045-7949(02)00225-0).

Record type: Article

Abstract

This paper is concerned with automation and optimisation of the design of a turbine blade fir-tree root by incorporating a knowledge based intelligent computer-aided design system (ICAD) and finite element analysis. Various optimisation algorithms have been applied in an effort to optimise the shape against a large number of geometric and mechanical constraints drawn from industrial experience in the development of such a structure. Attention is devoted to examining the effects of critical geometric features on the stress distribution at the interface between the blade and disk using a feature-based geometry modelling tool and the optimisation techniques. Various aspects of this problem are presented: (1) geometry representation using ICAD and transfer of the geometry to a finite element analysis code, (2) application of boundary conditions/loads and retrieval of analysis results, (3) exploration of various optimisation methods and strategies including gradient-based and modern stochastic methods. A product model from Rolls-Royce is used as a base design in the optimisation.

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More information

Published date: 2002
Additional Information: Received 16 January 2001; accepted 26 May 2002. Available online 17 September 2002.
Keywords: intelligent cad, design optimisation, finite element analysis, genetic algorithms

Identifiers

Local EPrints ID: 22078
URI: http://eprints.soton.ac.uk/id/eprint/22078
ISSN: 0045-7949
PURE UUID: 656d2dba-fba6-4f09-8b18-1998544f836b

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Date deposited: 21 Mar 2006
Last modified: 15 Jul 2019 19:23

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Contributors

Author: Wenbin Song
Author: Andy Keane
Author: Janet Rees
Author: Atul Bhaskar
Author: Steven Bagnall

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