Improved human-computer interaction for mechanical systems design through augmented strain/stress visualisation
by Frank Naets; Francesco Cosco; Wim Desmet
International Journal of Intelligent Engineering Informatics (IJIEI), Vol. 5, No. 1, 2017

Abstract: It is difficult to obtain realistic stress and strain estimates for mechanical designs due to unknown operational conditions, input forces and/or parameters. This limits a designer in evaluating whether a certain product meets all design specifications. This work presents an extended Kalman filter to obtain accurate strain and stress estimates of a structure under operational loading. An augmented reality application allows visualisation of these strains and stresses on a real component. This leads to an effective human-computer interface to evaluate a physical prototype. The developed approach exploits parametric reduced order models based on high fidelity finite-element design models to obtain an efficient formulation. This paradigm is validated on a flexible beam with unknown input forces and length. The proposed approach permits a more natural visualisation and interpretation of operational conditions. Our results encourage the adoption of this approach in applications ranging from design validation to online monitoring of structural components.

Online publication date: Wed, 01-Mar-2017

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