Macro-fine-micro multi-scale mechanical metamaterial design method and device

The invention discloses a macro-fine-micro multi-scale mechanical metamaterial design method and device, and the method comprises the steps: selecting a micro dot matrix configuration and a level set function, and obtaining a gradient change micro dot matrix structure; according to microscopic relat...

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Bibliographic Details
Main Authors LI SONGTING, HUO SENLIN, GUI YEWEI, ZHAO YONG, SHENG TAO, DO BYEONG-HYO, SHI YOU'AN
Format Patent
LanguageChinese
English
Published 30.04.2024
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTEDFOR SPECIFIC APPLICATION FIELDS
PHYSICS
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Summary:The invention discloses a macro-fine-micro multi-scale mechanical metamaterial design method and device, and the method comprises the steps: selecting a micro dot matrix configuration and a level set function, and obtaining a gradient change micro dot matrix structure; according to microscopic relative density sampling, acquiring microscopic gradient lattice structures with different volume fractions; calculating to obtain a microcosmic homogenized elastic tensor of the microcosmic lattice structure; constructing a proxy model for fitting a mapping relation between the mesoscopic homogenized elastic tensor and the mesoscopic relative density; a macroscopic design target of the mechanical metamaterial is determined, the proxy model serves as an equivalent material constitutive, the relative density of the mesoscopic coarse grid units serves as a design variable, and an inverse homogenization topological optimization array is constructed; solving the optimization column formula, and obtaining the relative densi
Bibliography:Application Number: CN202410170447