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DFM method for aircraft structural parts using the AHP method

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Abstract

During the part design process, the main objective is usually the maximum performance in use. For aircraft structural parts, the best ratio between mechanical resistance and weight is sought. However, these objectives can lead to geometries which are complex to manufacture. The DFM method presented here is based on concepts from morphological studies and analytic hierarchy process (AHP) to optimize the geometry of an I-Beam considering its manufacturing process and use. To do this, all the I-Beam alternatives that fit into the mechanical environment of the part are listed. Performance indicators are then defined to evaluate the weight, mechanical resistance, and manufacturability of each I-Beam. Then, performance indicators are compared and their relative priority measured on a ratio scale. Finally, the various I-Beam alternatives are compared using a macro-indicator composed of all the performance indicators in order to find the best geometry for the part considering its industrial and economic environment.

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Acknowledgements

The authors are greatly appreciative to Mr. Alexandre Borsut and Mr. Quentin Lagarde, SIGMA Clermont, for their assistance in this paper.

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Authors and Affiliations

  1. Université Clermont Auvergne, CNRS, SIGMA Clermont, Institut Pascal, 63000, CLERMONT-FERRAND, France

    Charles Fortunet, Séverine Durieux, Hélène Chanal & Emmanuel Duc

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  1. Charles Fortunet
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  2. Séverine Durieux
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  3. Hélène Chanal
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Correspondence to Charles Fortunet.

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Fortunet, C., Durieux, S., Chanal, H. et al. DFM method for aircraft structural parts using the AHP method. Int J Adv Manuf Technol 95, 397–408 (2018). https://doi.org/10.1007/s00170-017-1213-1

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