Abstract
Despite manufacturing sub-components to a high precision, large over-constrained assemblies are often impossible to assemble to tolerance limits
when variations are present. This necessitates expensive and time consuming
variation management processes at assembly, such as shimming. Existing research has not established a methodology to model the variation propagation mechanisms that results in this assembly variation. This paper presents such a methodology, which has the ability to quantify the assembly variation of over-constrained assemblies at the planning stage, providing useful data for determining the most appropriate combination of fabrication and assembly processes to use for a given case. The methodology is validated using an aerospace wing spar assembly, and a sensitivity study completed to rank the key variation drivers in the over-constrained assembly.
when variations are present. This necessitates expensive and time consuming
variation management processes at assembly, such as shimming. Existing research has not established a methodology to model the variation propagation mechanisms that results in this assembly variation. This paper presents such a methodology, which has the ability to quantify the assembly variation of over-constrained assemblies at the planning stage, providing useful data for determining the most appropriate combination of fabrication and assembly processes to use for a given case. The methodology is validated using an aerospace wing spar assembly, and a sensitivity study completed to rank the key variation drivers in the over-constrained assembly.
| Original language | English |
|---|---|
| Title of host publication | Advances in Manufacturing Technology XXXII: Proceedings of the 16th International Conference on Manufacturing Research, incorporating the 33rd National Conference on Manufacturing Research, September 11–13, 2018, University of Skövde, Sweden |
| Editors | Peter Thorvald, Keith Case |
| Place of Publication | Amersterdam |
| Publisher | IOS Press |
| Pages | 171-176 |
| Number of pages | 6 |
| ISBN (Electronic) | 978-1-61499-902-7 |
| ISBN (Print) | 978-1-61499-901-0 |
| DOIs | |
| Publication status | Published - Sep 2018 |
Publication series
| Name | Advances in Transdisciplinary Engineering |
|---|---|
| Publisher | IOS Press |
| Volume | 8 |
Fingerprint
Dive into the research topics of 'Variation Sensitivity Study for an Aerospace Wing Spar Assembly'. Together they form a unique fingerprint.Student Theses
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Variation propagation modelling and cost-oriented process optimisation for aircraft assembly
Author: McKenna, V., Jul 2020Supervisor: Murphy, A. (Supervisor) & Jin, Y. (Supervisor)
Student thesis: Doctoral Thesis › Doctor of Philosophy
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