| Titre : |
Design sensitivity analysis applied to injection molding for optimization of gate location and injection pressure |
| Type de document : |
texte imprimé |
| Auteurs : |
K. K. Kabanemi, Auteur ; J.-F. Hétu, Auteur ; A. Derdouri, Auteur |
| Année de publication : |
2002 |
| Article en page(s) : |
p. 254-264 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Index. décimale : |
668.9 Polymères |
| Résumé : |
In this work, we develop a numerical simulation method to optimize the injection molding process using the design sensitivity analysis (DSA). The optimization concerns the filling stage and focuses on the location of gates in the mold cavity as well as the injection pressure profile, in order to minimize the fill time. Since the problem to be solved involves transient flow with free surface (flow front), the direct differentiation method is used to evaluate the sensitivities of the Hele-Shaw, filling fraction and energy equations with respect to the design variables used in the analysis. The search domain parameterization is coped with using B-spline functions. Sensitivity and state equations are solved by means of finite element method. The proposed numerical approach is combined with the sequential linear and quadratic programming method of the design optimization tools (DOT) to find new design variables at the end of each complete filling simulation. Starting from any initial gate locations and injection pressure profile, the iterative optimization procedure enables us to find the optimal gate locations together with the optimal injection pressure profile. Finally, numerical results involving complex mold geometries are presented and discussed to assess the validity and robustness of the proposed method. |
| Note de contenu : |
- Basic equations of injection molding : Hele-Shaw approximation
- Numerical discretization
- DSA-based approach and optimization
- Algorithm |
| DOI : |
10.3139/217.1692 |
| En ligne : |
https://drive.google.com/file/d/14svlimdPnr4Ek-a1nrP-shtFqs7qfyoL/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=16012 |
in INTERNATIONAL POLYMER PROCESSING > Vol. XVII, N° 3 (09/2002) . - p. 254-264
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Design sensitivity analysis applied to injection molding for optimization of gate location and injection pressure in INTERNATIONAL POLYMER PROCESSING, Vol. XVII, N° 3 (09/2002)
