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Geometry Assurance Integrating Process Variation with Simulation of Spring-in for Composite Parts and Assemblies

Conference paper
Authors Cornelia Jareteg
Kristina Wärmefjord
Christoffer Cromvik
Rikard Söderberg
Lars Lindkvist
Johan S Carlson
Stig Larsson
Fredrik Edelvik
Published in Proc. of ASME 2014 International Mechanical Engineering Congress & Exposition
Volume 2A
ISBN 978-07-91-84643-8
Publication year 2014
Published at Department of Mathematical Sciences, Mathematics
Language en
Keywords Variation simulation, composites, part variation
Subject categories Mathematics, Applied mathematics, Manufacturing engineering


Geometrical variation and deviation in all manufacturing processes affect quality of the final product. Therefore geometry assurance is an important tool in the design phase of a new product. In the automotive and aviation industries where the use of composite parts is increasing drastically, new tools within variation simulations are needed. Composite parts tend to deviate more from nominal specification compared to metal parts. Methods to simulate the manufacturing process of composites have been developed before. In this paper we present how to combine the process variation simulation of composites with traditional variation simulations. The proposed method is demonstrated on a real complex subassembly, representing part of an aircraft wing-box. Since traditional variation simulation methods are not able to capture the spring-in and the special deviation behavior of composites,the proposed method adds a new feature and reliability to the geometry assurance process of composite assemblies.

Page Manager: Webmaster|Last update: 9/11/2012

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