Activities per year
With the increasing use of Computer Aided Engineering, it has become vital to be able to evaluate the accuracy of numerical models. This research poses the problem of selection of the most accurate and relevant correlation solution to a set of corridor variations. Specific methods such as CORA, widely accepted in industry, are developed to objectively evaluate the correlation between monotonic functions, while the Minimum Area Discrepancy Method, or MADM, is the only method to address the correlation of non-injective mathematical variations, usually related to force/acceleration versus displacement problems. Often, it is not possible to differentiate objectively various solutions proposed by CORA, which this paper proposes to answer. This research is original, as it proposes a new innovative correlation optimisation framework, which can select the best CORA solution by including MADM as a subsequent process. The paper and the methods are rigorous, having used an industry standard driver airbag computer model, built virtual test corridors and compared the relationship between different CORA and MADM ratings from 100 Latin Hypercube samples. For the same CORA value of ‘1’ (perfect correlation), MADM was capable to objectively differentiate between 13 of them and provide the best correlation possible. The paper has recommended the MADM settings n = 1; m = 2 or n = 3; m = 2 for a congruent relationship with CORA. As MADM is performed subsequently, this new framework can be implemented in already existing industrial processes and provide automotive manufacturers and Original Equipment Manufacturers (OEM) with a new tool to generate more accurate computer models.
|Number of pages||9|
|Journal||Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering|
|Early online date||30 Dec 2021|
|Publication status||Published - Dec 2022|
- minimum area discrepancy method
- numerical model accuracy
ASJC Scopus subject areas
- Aerospace Engineering
- Mechanical Engineering
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- 1 Oral presentation
22 Jun 2022
Activity: Talk or presentation › Oral presentation
Bastien, C. & Christensen, J., 28 Jan 2022
Research output: Practice-Based and Non-textual Research › Software
Diederich, A., Bastien, C., Ekambaram, K. & Wilson, A., Sept 2021, In: Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering. 235, 10-11, p. 2818-2842 25 p.
Research output: Contribution to journal › Article › peer-reviewOpen AccessFile