Maximizing attenuation of sound waves preserving air permeability in sonic crystals via topology optimization DOI
Zhiyuan Jia, Yi Yan,

Yuhao Bao

et al.

Applied Acoustics, Journal Year: 2024, Volume and Issue: 228, P. 110348 - 110348

Published: Oct. 17, 2024

Language: Английский

Multi-material topology optimization of phononic crystal considering isotropic/anisotropic materials DOI
Long Liu, Ji Wan Kim, Ran Zheng

et al.

Computers & Structures, Journal Year: 2024, Volume and Issue: 302, P. 107479 - 107479

Published: July 19, 2024

Language: Английский

Citations

3
Optimal design of a novel nested metamaterial with hybrid auxetic-locally resonant band gap for suppressing robotic grinding vibration DOI
Yishuai Jin, Qi Chen, He Tian

et al.

Mechanics of Advanced Materials and Structures, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 12

Published: Dec. 17, 2024

To suppress vibration during robotic grinding of aero-engine blades caused by low stiffness and point-to-point movement, a novel metamaterial comprising double-nested auxetic structure local resonator is proposed. It simultaneously achieves enhanced-stiffness an ultra-low frequency wide-range band gap generated the hybrid auxetic-locally resonant characteristic. Young's modulus studied analytically numerically. A co-simulation procedure applied to obtain optimized (the bottom boundary 18.03 Hz) based on modal analysis results, verified through experimental study. The design nested provides effective strategy for suppressing vibration.

Language: Английский

Citations

3
Three-field topology optimization of single-phase phononic crystals with desired bandgaps for elastic wave manipulation DOI
Gengwang Yan, Xiaodong Huang, Yingli Li

et al.

Engineering Structures, Journal Year: 2024, Volume and Issue: 326, P. 119554 - 119554

Published: Dec. 27, 2024

Language: Английский

Citations

3
Topology design of two dimensional viscoelastic phononic crystals for wave attenuation based on deep generative neural networks DOI

Jingru Li,

Jingming Yin,

Wei Lin

et al.

Engineering Structures, Journal Year: 2025, Volume and Issue: 336, P. 120313 - 120313

Published: April 23, 2025

Language: Английский

Citations

0
Target-oriented inverse optimization design of phononic crystals with variable constraints for vibration attenuation DOI
Lin Liao, Song Yao,

Yunrui Zhu

et al.

Journal of Vibration and Control, Journal Year: 2024, Volume and Issue: unknown

Published: April 24, 2024

Previous research on phononic crystals (PnCs) design mostly focused the maximum band gap (BG) between adjacent orders and could not optimize desired target frequency based actual engineering problems. In order to achieve an arbitrarily specified BG structure of PnCs near frequency, a new topology method for is proposed using special triangular lattice PnC as object. genetic algorithm (GA) optimization framework, two variable constraint strategies, fixed-step adaptive, are form (VC-GA), which enables non gradient process be continuous uninterrupted. This model also divides into stages, can search individuals maximize under constraints BG. Combining with improved fast plane wave expansion (IFPWEM) optimizing single multi-objective BGs in in-plane out-of-plane modes, weight coefficient introduced broaden its scope application. The effectiveness verified through experiments, vibration reduction carried out within specific range corrugated plate example.

Language: Английский

Citations

2
Electrically controllable and reversible coupling degree in a phononic crystal with double piezoelectric defects DOI
Soo-Ho Jo

Thin-Walled Structures, Journal Year: 2024, Volume and Issue: 204, P. 112328 - 112328

Published: Aug. 8, 2024

Language: Английский

Citations

2
Investigation on enhanced band-gap properties of 2D hierarchical phononic crystals DOI

Jiping Jing,

Peng Sun, Zhijing Wu

et al.

Mechanical Systems and Signal Processing, Journal Year: 2024, Volume and Issue: 223, P. 111827 - 111827

Published: Aug. 23, 2024

Language: Английский

Citations

2
Isogeometric topology optimization for maximizing band gap of two-dimensional phononic crystal structures DOI

Shuohui Yin,

Jiahui Huang,

Sisi Liu

et al.

Applied Mathematical Modelling, Journal Year: 2024, Volume and Issue: 137, P. 115702 - 115702

Published: Sept. 11, 2024

Language: Английский

Citations

2
Topology Optimization for Quasi-Periodic Cellular Structures Using Hybrid Moving Morphable Components and the Density Approach DOI Creative Commons

Pengfei Xiao,

Chunping Zhou,

Yongxin Qu

et al.

Mathematics, Journal Year: 2024, Volume and Issue: 12(15), P. 2401 - 2401

Published: Aug. 1, 2024

Porous hierarchical structures are extensively utilized in engineering for their high specific strength, enhanced corrosion resistance, and multifunctionality. Over the past two decades, multiscale topology optimization these has garnered significant attention. This paper introduces a novel hybrid MMCs (Moving Morphable Components)–density method quasi-periodic cellular structures. The term ‘quasi-periodic’ refers to microstructures whose different macroscopic points exhibit similar topologies with varying parameters. primary concept involves using MMC describe microstructural topology, while employing variable density depict macro layouts. approach leverages advantage of explicitly describing structural alongside arbitrary microstructures. Sensitivity analyses functions concerning design variables shown, gradient solver is employed solve model. examples effectively show efficacy proposed method, illustrating that outperform single-scale solid

Language: Английский

Citations

1
Investigation of unidirectional vibration isolation and nonreciprocal design of axial elastic waves based on topological pumping theory DOI

Zixun Lu,

Hui Chen, Lingyun Yao

et al.

International Journal of Solids and Structures, Journal Year: 2024, Volume and Issue: 309, P. 113192 - 113192

Published: Dec. 9, 2024

Language: Английский

Citations

1