Journal ArticleDOI
Enhancement of Wave Energy Dissipation in Two-Dimensional Acoustic Black Hole by Simultaneous Optimization of Profile and Damping Layer
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TLDR
In this paper, simultaneous optimization of the geometric parameters of the acoustic black hole (ABH) profile and the topology of the damping layer covering the ABH area is investigated based on the former study of wave focalization.About:
This article is published in Journal of Sound and Vibration.The article was published on 2021-01-20. It has received 29 citations till now. The article focuses on the topics: Dissipation.read more
Citations
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A metamaterial consisting of an acoustic black hole plate with local resonators for broadband vibration reduction
TL;DR: In this article , the authors proposed a metamaterial in which a set of periodic local resonators are attached to an acoustic black hole (ABH) plate and the resonators were tuned to have a bandgap at the plate first eigenmode so as to suppress it.
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Cockroach-inspired structure for low-frequency vibration isolation
TL;DR: Wang et al. as mentioned in this paper presented a cockroach-inspired structure (CIS) by mimicking the body topology of cockroaches for low-frequency vibration isolation, which can withstand forces up to 900 times body weight owing to the shapechanging ability of their jointed exoskeletons and striated muscles.
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Sound radiation and non-negative intensity of a metaplate consisting of an acoustic black hole plus local resonators
TL;DR: In this article , Gaussian expansion component mode synthesis (GECMS) was used to compute the vibration field of a metamaterial acoustic black hole (MMABH) plate.
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A reusable metastructure for tri-directional energy dissipation
TL;DR: In this paper, an innovative reusable and self-recoverable metastructure (RSRMS) with tetrahedral motif unit cells (TMUCs) for tri-directional energy dissipation is presented.
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Dynamic analysis and optimization of a cantilevered beam with both the acoustic black hole and the nonlinear energy sink
Meng-Xin He,Ye Tang,Qian Ding +2 more
TL;DR: In this paper, a nonlinear cantilevered beam with the combination of the acoustic black hole (ABH) and the nonlinear energy sink (NES) was studied. But the authors focused on the non-linear energy consumption of the beam.
References
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Journal ArticleDOI
The method of moving asymptotes—a new method for structural optimization
TL;DR: In this article, a new method for non-linear programming in general and structural optimization in particular is presented, in which a strictly convex approximating subproblem is generated and solved.
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Material interpolation schemes in topology optimization
Martin P. Bendsøe,Ole Sigmund +1 more
TL;DR: In this article, the authors analyze and compare the various approaches to this concept in the light of variational bounds on effective properties of composite materials, and derive simple necessary conditions for the possible realization of grey-scale via composites, leading to a physical interpretation of all feasible designs as well as the optimal design.
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A 99 line topology optimization code written in Matlab
TL;DR: It is shown that only 49 Matlab input lines are required for solving a well-posed topology optimization problem and by adding three additional lines, the program can solve problems with multiple load cases.
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A review of homogenization and topology optimization III—topology optimization using optimality criteria
Behrooz Hassani,Ernest Hinton +1 more
TL;DR: In this paper, the mathematical model for the topological structural optimization is constructed and derivation of related optimality criteria is explained, a modified resizing scheme is suggested and illustrative examples are provided.