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A new way to solve tolerance analysis: the Cassino Unified Tolerance Analysis tool.

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Title: A new way to solve tolerance analysis: the Cassino Unified Tolerance Analysis tool.
Authors: Corrado, Andrea1 a.corrado@unicas.it, Polini, Wilma1
Source: International Journal of Computer Integrated Manufacturing. Feb2019, Vol. 32 Issue 2, p124-135. 12p. 4 Color Photographs, 3 Diagrams, 3 Charts, 7 Graphs.
Subjects: Tolerance analysis (Engineering), Engineering software, Engineering tolerances, Finite element method, Strains & stresses (Mechanics), Manufacturing processes
Abstract: In the last 30 years, many research works were carried out on the tolerance analysis. Historically, tolerance analysis of rigid assemblies was always separated by that of compliant assemblies. In this work, a new tool is proposed, aiming to numerically execute a tolerance analysis without making distinction between rigid and complaint assemblies. The Cassino Unified Tolerance Analysis (CaUTA) tool is based on general purpose software packages, and it allows to take into account the manufacturing signature on the surfaces of the parts constituting the assembly, i.e. the geometrical deviations from the nominal of the surfaces belonging to the assembly parts due to the adopted manufacturing process. The new tool was used to solve a real application as a 2D or 3D problem; the effects of form deviations and of part mechanical behaviour on the assembly stack-up result were considered by using a manufacturing signature model to generate the features with geometric deviations and the Finite Element Analysis (FEA) to analyse the stresses, strains and displacements. Finally, the CaUTA tool was validated by comparing the results with those due to a method of the literature. [ABSTRACT FROM AUTHOR]
Copyright of International Journal of Computer Integrated Manufacturing is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: A new way to solve tolerance analysis: the Cassino Unified Tolerance Analysis tool.
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  Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Computer+Integrated+Manufacturing%22">International Journal of Computer Integrated Manufacturing</searchLink>. Feb2019, Vol. 32 Issue 2, p124-135. 12p. 4 Color Photographs, 3 Diagrams, 3 Charts, 7 Graphs.
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  Data: <searchLink fieldCode="DE" term="%22Tolerance+analysis+%28Engineering%29%22">Tolerance analysis (Engineering)</searchLink><br /><searchLink fieldCode="DE" term="%22Engineering+software%22">Engineering software</searchLink><br /><searchLink fieldCode="DE" term="%22Engineering+tolerances%22">Engineering tolerances</searchLink><br /><searchLink fieldCode="DE" term="%22Finite+element+method%22">Finite element method</searchLink><br /><searchLink fieldCode="DE" term="%22Strains+%26+stresses+%28Mechanics%29%22">Strains & stresses (Mechanics)</searchLink><br /><searchLink fieldCode="DE" term="%22Manufacturing+processes%22">Manufacturing processes</searchLink>
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  Data: In the last 30 years, many research works were carried out on the tolerance analysis. Historically, tolerance analysis of rigid assemblies was always separated by that of compliant assemblies. In this work, a new tool is proposed, aiming to numerically execute a tolerance analysis without making distinction between rigid and complaint assemblies. The Cassino Unified Tolerance Analysis (CaUTA) tool is based on general purpose software packages, and it allows to take into account the manufacturing signature on the surfaces of the parts constituting the assembly, i.e. the geometrical deviations from the nominal of the surfaces belonging to the assembly parts due to the adopted manufacturing process. The new tool was used to solve a real application as a 2D or 3D problem; the effects of form deviations and of part mechanical behaviour on the assembly stack-up result were considered by using a manufacturing signature model to generate the features with geometric deviations and the Finite Element Analysis (FEA) to analyse the stresses, strains and displacements. Finally, the CaUTA tool was validated by comparing the results with those due to a method of the literature. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of International Journal of Computer Integrated Manufacturing is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1080/0951192X.2018.1550672
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      – Code: eng
        Text: English
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        PageCount: 12
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      – SubjectFull: Tolerance analysis (Engineering)
        Type: general
      – SubjectFull: Engineering software
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      – SubjectFull: Engineering tolerances
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      – SubjectFull: Finite element method
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      – SubjectFull: Strains & stresses (Mechanics)
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      – SubjectFull: Manufacturing processes
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              Text: Feb2019
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