Publicacións

@article{paz_optimisation_2020,

title = {Optimisation of thin-walled hybrid vertical struts for crashworthy aircraft designs},

author = {Javier Paz-Méndez and Jacobo Díaz-García and Luis E. Romera-Rodríguez and F. Teixeira-Dias},

url = {https://doi.org/10.1007/s00158-019-02350-3},

doi = {10.1007/s00158-019-02350-3},

issn = {1615-1488},

year  = {2020},

date = {2020-01-01},

urldate = {2026-08-06},

journal = {Structural and Multidisciplinary Optimization},

volume = {61},

number = {1},

pages = {141–158},

abstract = {This research concerns the crashworthiness enhancement of a model of a Boeing 737-200 fuselage section. Using a validated numerical specimen, four thin-walled crushable hybrid energy absorbers are added to the aircraft to work as vertical struts. The absorbers are composed of a hollow aluminium tube, a star-shaped glass fibre–reinforced polymer inner matrix and foam extrusions. The absorbers—with variable tube edge and thickness, composite thickness and core height—are single- and multi-objectively optimised. Surrogate models and genetic algorithms are used for the minimisation of acceleration loads, injury levels and the strut’s weight. Results yield a more efficient frames’ collapse evolution with plastic dissipation increased by over 50%. Consequently, acceleration peaks are up to 50% lower at the two measured locations while maintaining low mass values. Injury levels were also reduced from severe to moderate according to an Eiband diagram.},

keywords = {Aircraft design, Biometric criteria, Crashworthiness, Genetic algorithms, Hybrid energy absorbers, Multi-objective optimisation, Surrogate models},

pubstate = {published},

tppubtype = {article}

}