Multi-objective optimization of an engine mount design by means of memetic genetic programming and a local exploration approach

This work addresses the optimization of an engine mount design from a multi-objective scenario. Our methodology is divided into three phases: phase one focuses on data collection through computer simulations. The objectives considered during the analyses are: total mass, first natural frequency and...

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Bibliographic Details
Main Author: ALVARADO-INIESTA, ALEJANDRO
Other Authors: Guillén Anaya, Luis Gonzalo, Rodríguez-Picón, Luis Alberto, Ñeco Caberta, Raúl
Format: Artículo
Language:English
Published: 2018
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Online Access:https://doi.org/10.1007/s10845-018-1432-9
https://link.springer.com/article/10.1007/s10845-018-1432-9#citeas
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Summary:This work addresses the optimization of an engine mount design from a multi-objective scenario. Our methodology is divided into three phases: phase one focuses on data collection through computer simulations. The objectives considered during the analyses are: total mass, first natural frequency and maximum von Mises stress. In phase two, a surrogate model by means of genetic programming is generated for each one of the objectives. Moreover, a local search procedure is incorporated into the overall genetic programming algorithm for improving its performance. Finally, in phase three, instead of steering the search to finding the approximate Pareto front, a local exploration approach based on a change in the weight space is used to lead a search into user defined directions turning the decision making more intuitive.