| Issue |
Int. J. Metrol. Qual. Eng.
Volume 8, 2017
|
|
|---|---|---|
| Article Number | 21 | |
| Number of page(s) | 7 | |
| DOI | https://doi.org/10.1051/ijmqe/2017004 | |
| Published online | 21 August 2017 | |
Research Article
Thermal compensation for large volume metrology and structures
Department of Mechanical Engineering, University of Bath,
Bath
BA2 7AY, United Kingdom
* Corresponding author: g.mullineux@bath.ac.uk
Received:
25
July
2016
Accepted:
25
January
2017
Ideally metrology is undertaken in well-defined ambient conditions. However, in the case of the assembly of large aerospace structures, for example, measurement often takes place in large uncontrolled production environments, and this leads to thermal distortion of the measurand. As a result, forms of thermal (and other) compensation are applied to try to produce what the results would have been under ideal conditions. The accuracy obtained from current metrology now means that traditional compensation schemes are no longer useful. The use of finite element analysis is proposed as an improved means for undertaking thermal compensation. This leads to a “hybrid approach” in which the nominal and measured geometry are handled together. The approach is illustrated with a case study example.
Key words: thermal compensation / large volume metrology / finite element analysis / assembly
© B. Yang et al., published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.