Related references
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EUROPEAN JOURNAL OF MECHANICS A-SOLIDS
(2023)
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INTERNATIONAL JOURNAL OF REFRIGERATION
(2023)
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Hui Sheng et al.
Summary: This paper presents a modified add-on strategy using multiple acoustic black hole dynamic vibration absorbers to reduce the transverse vibration of beam structures, with the intention of achieving broadband vibration suppression by introducing intentional mistuning effect. Several case studies and multi-objective optimization are conducted to demonstrate the effectiveness of the proposed strategy and its potential for widening the attenuation bandwidth of the acoustic black hole structures.
JOURNAL OF SOUND AND VIBRATION
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APPLIED MATHEMATICAL MODELLING
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Qida Lin et al.
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Zhenyu Chen et al.
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INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
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Miao Zhao et al.
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(2023)
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JOURNAL OF SOUND AND VIBRATION
(2023)
Article
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Jie Deng et al.
Summary: In this paper, a metabeam with periodically distributed integrated acoustic black holes (IABHs) is proposed. The thickness of the base beam remains unchanged, making it suitable for load-bearing applications. The ABH pillars act as dynamic vibration absorbers (DVAs), providing abundant modes with high damping performance and generating resonance and bandgaps to stop wave propagation.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2023)
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Jie Deng et al.
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Xiyue An et al.
Summary: A new type of meta-orthogrid sandwich panel (MOSP) with spring-mass resonators is proposed and designed in this study. By adding spring-mass subsystems to the skin, the vibration attenuation of the structure is achieved while retaining the bearing capacity of the panel. Theoretical analysis and finite element simulation are used to determine the bandgap boundaries and evaluate the vibration isolation properties of the MOSP. The experimental validation of theoretical and simulation results is carried out through 3D printing. This work is significant for the design of sandwich structures with both vibration attenuation and load bearing requirements.
COMPOSITE STRUCTURES
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Review
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Hanfeng Yin et al.
Summary: This paper reviews and discusses the research on energy absorption characteristics of lattice structures in recent years. It summarizes the performance evaluation indexes and loading conditions, classifies the lattice structures, introduces their energy absorption properties, fabrication process, and engineering application, and predicts the future research direction. It provides a useful platform for designing energy absorbed lattice structures and offers a basis for developing new excellent energy absorbed lattice structures.
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Zhenyu Chen et al.
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Xiyue An et al.
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Tong Zhou et al.
Summary: This paper proposes a planar swirl-shaped Acoustic Black Hole (ABH) absorber, which exhibits good performance in experimental studies, enabling broadband multi-directional vibration suppression. The absorber has reduced orientation-dependent properties to cope with multi-directional rotational moment excitations, and possesses enhanced energy trapping and dissipation capabilities.
JOURNAL OF SOUND AND VIBRATION
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Hongli Ji et al.
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Meng-Fu Guo et al.
Summary: This study proposes three novel 3D double arrowhead plate-lattice (DAPL) auxetic structures, and validates their enhanced stiffness and energy absorption capacity compared to truss-lattices through experiments and numerical analysis. The study also reveals that geometrical parameters have minimal influence on the elastic constants of these structures.
COMPOSITE STRUCTURES
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Hui Sheng et al.
Summary: The study investigates the ultra-low frequency broadband gap in a one-dimensional structure embedded with ABHs with power-law material properties, using the Transfer Matrix Method. The results show that the dual power-law ABH structure has excellent ultra-low frequency performance due to the reduction of dual power-law local stiffness. Optimization through parameter analysis and NSGA-II combined with TMM provides a trade-off between lower bandgaps and higher stiffness, leading to the design of periodic DP-ABHs with ultra-low broadband gaps meeting stiffness requirements.
JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES
(2022)
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Engineering, Mechanical
Xiaochun Lu et al.
Summary: Sound and vibration pollution is a common issue in urban areas. This study introduces 3D printed hollow sphere lattice metamaterials to achieve tunable phononic bandgaps. By softening the binders between hollow spheres and keeping the spheres hard, the phononic bandgaps can be modulated and magnified.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2022)
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Engineering, Mechanical
Rong-Biao Hao et al.
Summary: An orthogonal six-DOFs vibration isolation system with tunable high-static-low-dynamic stiffness characteristics is studied using experimental and analytical methods. The results show that the isolation frequency range is widened with increasing controlled current, and increasing the electromagnetic coefficient and decreasing the onset distance can decrease the isolation start frequency.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2022)
Article
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Li Ma et al.
Summary: This study demonstrates that vibrating acoustic black hole effects can be achieved in structures with thin thickness through proper design. The compound structural design effectively utilizes both the acoustic black hole effects and the shear effects of the damping material to enhance structural damping. The findings have important implications for vibration reduction.
JOURNAL OF SOUND AND VIBRATION
(2022)
Review
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Uzair Sajjad et al.
Summary: Lattice structures are a type of cellular materials with enhanced thermomechanical properties, and they have gained attention in engineering applications due to advancements in additive manufacturing technology. This article reviews the material classification, fabrication techniques, and heat transfer characteristics of lattice structures, providing important conclusions and future research directions.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
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Wei Ding et al.
Summary: This work presents the design, manufacture, and experimental testing of a three-dimensional twisted phononic crystal made of a single-phase material. The research comprehensively explains the mechanism of bandgap formation in the crystal and the methods for tuning the bandgap.
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Weifeng Jiang et al.
Summary: Complex engineering applications have created a demand for engineering structures or materials with multiple desired properties. This study presents a novel three-dimensional lattice structure with simultaneous vibration mitigation and energy absorption capabilities. Results show that the proposed metastructure can attenuate low-frequency elastic waves through local resonance and absorb impact energy through buckling deformation. The study also implements a functionally graded strategy to enhance the performance of the lattice metamaterial.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
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Xiaoqiang Chong et al.
Summary: A nonlinear X-combined structure is proposed to improve vibration isolation characteristics by avoiding negative stiffness and unstable factors. The structure uses an X-shaped mechanism and inclined springs to achieve high-static and low-dynamic stiffness. The combination of two nonlinear mechanisms is investigated to evaluate the vibration isolation performance. The results show that the proposed structure has positive/quasi-zero/zero stiffness over the entire working range, with better vibration isolation performance compared to existing nonlinear isolators.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
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Siting Hao et al.
Summary: A novel two-dimensional locally resonant metastructure is proposed in this paper, which punches several concentric holes in the host plate filled with soft materials and installs a resonator in the center to achieve vibration suppression. The vibration attenuation performance is evaluated by numerical and experimental methods, and the formation mechanism of band gaps is revealed. This design has great potential for engineering applications.
ENGINEERING STRUCTURES
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Haiqin Li et al.
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INTERNATIONAL JOURNAL OF NON-LINEAR MECHANICS
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Article
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Xiyue An et al.
Summary: This study introduces a new type of three-dimensional single-phase meta-plate lattice structure with chiral microstructures, which can achieve broadband vibration reduction and meet load-carrying requirements. Through numerical simulations and vibration transmission tests, the isolation effect of this structure is validated, and sound absorption experiments are conducted to evaluate its performance.
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Weifeng Jiang et al.
Summary: This study introduces a class of 3D single-phase elastic metamaterials exhibiting both locally resonant and Bragg scattering bandgaps, which can overlap to form an ultra-wide vibration attenuation frequency range. The results are verified experimentally using additive manufacturing, suggesting a feasible approach for realizing elastic metamaterials for engineering application.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
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Lin Li et al.
Summary: Micro-vibration caused by disturbance sources onboard spacecraft can severely degrade the working environment of high-precision space optical instruments (HPSOIs) in orbit. Notable micro-vibration suppression methods have been developed in recent decades, mainly focusing on disturbance source suppression, payload isolation, and transfer path suppression. Passive isolation techniques are commonly used in aerospace engineering, while active isolators are proposed for dealing with low-frequency vibrations in spacecraft. Additionally, emerging advanced suppression methods utilizing the advantages of IOS have also been reported.
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Acoustics
Xiaofei Lyu et al.
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JOURNAL OF SOUND AND VIBRATION
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Liling Tang et al.
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JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
(2021)
Review
Materials Science, Multidisciplinary
Xujin Yuan et al.
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CURRENT OPINION IN SOLID STATE & MATERIALS SCIENCE
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Review
Engineering, Mechanical
J. C. Ji et al.
Summary: Vibration and sound control are crucial for practical engineering systems, and metamaterials and origami-based structures offer promising applications due to their unique physical properties. Metamaterials exhibit extremal properties not found in conventional materials, with recent advances in auxetic, band gap, and pentamode metamaterials for vibration and sound mitigations. Origami, as an ancient Japanese art, has become a new design paradigm with its multi-stable states and desirable stiffness characteristics for vibration control.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
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Engineering, Mechanical
Meng-Xin He et al.
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Acoustics
Meng-Xin He et al.
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JOURNAL OF SOUND AND VIBRATION
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Haiqin Li et al.
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