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research-article

EFFICIENT COMPLIANT VARIATION SIMULATION OF SPOT WELDED ASSEMBLIES

[+] Author and Article Information
Samuel Lorin

Computational Engineering and Design, Fraunhofer Chalmers Centre, SE-412 58 Gothenburg, Sweden
samuel.lorin@fcc.chalmers.se

Björn S. Lindau

Volvo Car Corporation, SE-405 31 Gothenburg, Sweden
bjorn.lindau@volvocars.com

Lars Lindkvist

Department of Industrial and Materials Science, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden
lali@chalmers.se

Rikard Söderberg

Department of Industrial and Materials Science, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden
rikard.soderberg@chalmers.se

1Corresponding author.

ASME doi:10.1115/1.4041706 History: Received May 07, 2018; Revised October 01, 2018

Abstract

During product development one important aspect is the geometric robustness of the design. This is due to the fact that all manufacturing processes lead to products with variation. Failing to properly account for the variability of the process in the design phase may lead to expensive redesign. One important tool during the design phase in many industries is variation simulation which makes it possible to predict and optimize the geometric quality of the design. However, despite the increase in computer power; calculation time is still an obstacle for the wider use of variation simulation. In this article we are proposing a new method for efficient compliant variation simulation of spot welded sheet metal assemblies. The method is exact and it is shown that the method leads to time savings in simulation of approximately 40%-50% compared to state-of-the-art in variation simulation.

Copyright (c) 2018 by ASME
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