Skip to Main content Skip to Navigation
Theses

Maîtrise de la robustesse de systèmes dynamiques non-linéaires vis-à-vis de paramètres imprécis : application à l'optimisation de suspensions GMP en phase d'avant-projet

Abstract : In preliminary projects, numerical optimization techniques allow to obtain efficient solutions rapidly and at lower cost. The aim of such tools is to search and obtain the best design. For a few years, methods of simulation integrating the inaccuracies inherent in the realization of the manufactured goods have been developed. The purpose is then to study the robustness of the solutions with respect to the variability of the parameters of the model. In order to improve the quality of the products it is now essential to take both efficiency and robustness into account. In this study we propose a new robust optimization strategy which allows to handle several objective functions for the improvement of dynamic behaviour of mechanical systems in the design step. The proposed methodology is based on multi-objective optimization method and takes parameters imprecision into account using second-order approximation. Coupling both those methods is justified by the common use of sensitivities. Then, an application on a powertrain mounting system has been performed using this tool. For this industrial test case, new robust and optimal designs have been obtained and validated.
Complete list of metadatas

https://hal-uphf.archives-ouvertes.fr/tel-03001873
Contributor : Marie Zoia <>
Submitted on : Thursday, November 12, 2020 - 3:29:45 PM
Last modification on : Saturday, November 28, 2020 - 3:21:12 AM

File

2007VALE0002_BOUDART_SAMUEL.pd...
Files produced by the author(s)

Identifiers

  • HAL Id : tel-03001873, version 1

Collections

Citation

Samuel Boudart. Maîtrise de la robustesse de systèmes dynamiques non-linéaires vis-à-vis de paramètres imprécis : application à l'optimisation de suspensions GMP en phase d'avant-projet. Génie mécanique [physics.class-ph]. Université de Valenciennes et du Hainaut-Cambrésis, UVHC, (France), 2007. Français. ⟨NNT : 2007VALE0002⟩. ⟨tel-03001873⟩

Share

Metrics

Record views

8

Files downloads

7