Engineering Structures, Год журнала: 2025, Номер 336, С. 120313 - 120313
Опубликована: Апрель 23, 2025
Язык: Английский
Engineering Structures, Год журнала: 2025, Номер 336, С. 120313 - 120313
Опубликована: Апрель 23, 2025
Язык: Английский
Materials, Год журнала: 2025, Номер 18(2), С. 377 - 377
Опубликована: Янв. 15, 2025
The phononic crystals composed of soft materials have received extensive attention owing to the extraordinary behavior when undergoing large deformations, making it possible provide tunable band gaps actively. However, inverse designs them mainly rely on gradient-driven or gradient-free optimization schemes, which require sensitivity analysis cause time-consuming, lacking intelligence and flexibility. To this end, a deep learning-based framework conditional variational autoencoder multilayer perceptron is proposed discover mapping relation from topology layout applied with prestress. nonlinear superelastic neo-Hookean model employed describe constitutive characteristics, based structures are obtained via transfer matrix method accompanied Bloch theory. results show that data-driven approach can efficiently rapidly generate multiple candidates predicted in accord each other also consistent prescribed targets, verifying accuracy flexibility simultaneously. Furthermore, generalization performance, design space deeply exploited obtain desired whose stop bands characterized by wider bandwidth, lower location, enhanced wave attenuation performance.
Язык: Английский
Процитировано
1International Journal of Mechanical Sciences, Год журнала: 2025, Номер unknown, С. 110116 - 110116
Опубликована: Март 1, 2025
Язык: Английский
Процитировано
1Mechanical Systems and Signal Processing, Год журнала: 2025, Номер 228, С. 112453 - 112453
Опубликована: Фев. 12, 2025
Язык: Английский
Процитировано
0Journal of Marine Science and Engineering, Год журнала: 2025, Номер 13(2), С. 380 - 380
Опубликована: Фев. 19, 2025
This study presents a foam sandwich structure reinforced with carbon fiber columns (FSS-CFC), which exhibits strong mechanical and sound insulation properties. The FSS-CFC consists of two face-sheets polyvinyl chloride (PVC) core containing multiple CFC cylinders arranged in periodic array. transmission loss (STL) measured acoustic tube experiments closely aligns the finite element simulation results, validating reliability present research. Through characteristic analyses, reveals mechanism FSS-CFC, identifying three distinct dips caused by standing wave resonance core, column-driven same-direction bending vibrations, column-constrained opposite-direction vibrations sheets. It is also demonstrated that performance insensitive to hydrostatic pressure changes. Finally, optimized genetic algorithm MATLAB COMSOL. displays good improvements both compared initial structure. average STL frequency 500 Hz 25,000 has increased 3 dB, representing an improvement approximately 25%. could provide valuable insights for development pressure-resistant use on deep-water vehicles.
Язык: Английский
Процитировано
0International Journal of Mechanical Sciences, Год журнала: 2025, Номер unknown, С. 110190 - 110190
Опубликована: Март 1, 2025
Язык: Английский
Процитировано
0Engineering Structures, Год журнала: 2025, Номер 336, С. 120313 - 120313
Опубликована: Апрель 23, 2025
Язык: Английский
Процитировано
0