Automatic dimensional reduction and meshing of stiffened thin-wall structures

The creation of idealised, dimensionally reduced meshes for preliminary design and optimisation remains a time-consuming, manual task. A dimensionally reduced model is ideal for assessing design changes through modification of element properties without the need to create a new geometry or mesh. In...

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Bibliographic Details
Published in:Engineering with computers 2014-10, Vol.30 (4), p.689-701
Main Authors: Nolan, Declan C., Tierney, Chris M., Armstrong, Cecil G., Robinson, Trevor T., Makem, Jonathan E.
Format: Article
Language:English
Subjects:
Assembly
Automation
CAE) and Design
Calculus of Variations and Optimal Control
Optimization
Classical Mechanics
Computer Science
Computer-Aided Engineering (CAD
Control
Equivalence
Finite element method
Manuals
Math. Applications in Chemistry
Mathematical and Computational Engineering
Meshing
Original Article
Preliminary designs
Systems Theory
Tasks
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Summary:The creation of idealised, dimensionally reduced meshes for preliminary design and optimisation remains a time-consuming, manual task. A dimensionally reduced model is ideal for assessing design changes through modification of element properties without the need to create a new geometry or mesh. In this paper, a novel approach for automating the creation of mixed dimensional meshes is presented. The input to the process is a solid model which has been decomposed into a non-manifold assembly of smaller volumes with different meshing significance. Associativity between the original solid model and the dimensionally reduced equivalent is maintained. The approach is validated by means of a free-free modal analysis on an output mesh of a gas turbine engine component of industrial complexity. Extensions and enhancements to this work are also discussed.
ISSN:0177-0667
1435-5663
DOI:10.1007/s00366-013-0317-y