Development of a Parametric Model Order Reduction Approach for Beam-Based Structures Virtual Vehicle Research Center

Format:

Conference/Event

Author/Creator:

Lappano, Lappano, author.

Contributor:

Desmet, Wim

Mundo, Domenico

Naets, Frank

Vermaut, Martijn

Conference Name:

9th International Styrian Noise, Vibration & Harshness Congress: The European Automotive Noise Conference (2016-06-22 : Graz, Austria)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2016

Summary:

AbstractThis paper proposes a specific parametric model order reduction (pMOR) scheme for the efficient evaluation of beam based structures. The model to be parameterized is a Finite Element (FE) model that represents a generic network of beams with a number of distinct cross-section types. The methodology considers geometrical parameters that describe the cross-section and the material properties of the beams as the design parameters of interest. An affine representation of the model is derived based on the description of the deformation of a uniform beam. This affine representation can be exploited for the hyper-reduction where the evaluation cost of the system matrices is reduced.The reduction of the system matrices is obtained through a projection based approach. For a given number of parameter combinations a modal basis is constructed. A global reduced order basis (ROB) is obtained through a principal component analysis of these local bases.A numerical example shows how the affine representation in conjunction with a suitable projection basis can be used to generate an efficient pMOR simulation

Notes:

Vendor supplied data

Publisher Number:

2016-01-1857

Access Restriction:

Restricted for use by site license