Article
Engineering, Civil
Wei-Xing Zhang, Wei Zhang, Dong-Shuo Yang, Zhong Luo, Xiang-Ying Guo
Summary: This paper investigates the excessive vibration control of laminated composite plates using a nonlinear energy sink with internal oscillator (NES-IO). The proposed NES-IO is more effective in suppressing vibration than traditional NES, as measured by both energy dissipation and frequency responses. Based on theoretical models and analysis methods, the dynamic model of the nonlinear laminated composite plate with the NES-IO is established. The mechanism of the NES-IO is analyzed, and its improvement in vibration reduction performance, especially with large amplitude excitations, is demonstrated.
ENGINEERING STRUCTURES
(2023)
Article
Engineering, Electrical & Electronic
Fan Li, Xiao Zhang, Tianxin Wu, Jiheng Li, Xuexu Gao, Jie Zhu
Summary: In this study, large magnetoelectric coupling coefficient and magnetoelectric coupling anisotropy were reported in Galfenol/PZT/Galfenol 2-2 symmetric magnetoelectric sandwich devices. The Galfenol alloy with <001> orientation exhibited significant magneto-striction and a high piezomagnetic coefficient. A magnetoelectric coupling laminate of Galfenol/PZT/Galfenol was prepared, and the device showed linear and sensitive magnetoelectric output voltage in response to AC excitation magnetic field. The device also demonstrated in-plane magnetoelectric anisotropy and potential for magnetic field sensing and energy harvesting applications when powering LEDs and a temperature/humidity sensor.
SENSORS AND ACTUATORS A-PHYSICAL
(2023)
Article
Multidisciplinary Sciences
Mohsen Zaeimbashi, Mehdi Nasrollahpour, Adam Khalifa, Anthony Romano, Xianfeng Liang, Huaihao Chen, Neville Sun, Alexei Matyushov, Hwaider Lin, Cunzheng Dong, Ziyue Xu, Ankit Mittal, Isabel Martos-Repath, Gaurav Jha, Nikita Mirchandani, Diptashree Das, Marvin Onabajo, Aatmesh Shrivastava, Sydney Cash, Nian X. Sun
Summary: The research presents an ultra-compact dual-band smart nanoelectromechanical systems magnetoelectric (ME) antenna that can efficiently perform wireless energy harvesting and sense ultra-small magnetic fields, meeting the demands of wireless power transfer and neural magnetic field recording for implantable medical devices.
NATURE COMMUNICATIONS
(2021)
Article
Engineering, Civil
Chendi Zhu, Jian Yang
Summary: This study investigates the vibration transmission and energy flow tailoring of variable stiffness laminated composite plates with curvilinear fibres. Curvilinear fibre designs are found to have a significant influence on the main energy flow transmission paths and vibration level. For enhanced vibration suppression, the fibre angles can be tailored to modify the vibration transmission paths according to a specific excitation.
THIN-WALLED STRUCTURES
(2022)
Article
Engineering, Mechanical
Chendi Zhu, Jian Yang, Chris Rudd
Summary: This paper investigates the vibration transmission and power flow behavior of harmonically excited laminated composite plates with different inerter-based suppression configurations. The results show that fiber orientation and stacking sequences significantly impact power flow characteristics and dominant vibration transmission paths. Passive elements attached to the plate can modify its vibration response and transmission according to specific design requirements.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2021)
Article
Engineering, Mechanical
Chendi Zhu, Gang Li, Shilun Ruan, Jian Yang
Summary: This paper investigates the vibration energy transmission characteristics of laminated composite plates with straight or variable angle fiber paths subjected to distributed force excitations. The dynamic responses as a function of frequency are calculated and evaluated using proposed analytical approach and numerical finite element method based on the first-order shear deformation theory. The results reveal that tailoring fiber paths could lead to the formation of vortex-type flows with low vibration levels.
JOURNAL OF VIBRATION ENGINEERING & TECHNOLOGIES
(2023)
Article
Engineering, Marine
Junlei Wang, Bing Xia, Daniil Yurchenko, Grzegorz Litak, Yong Li, Haigang Tian
Summary: This paper proposes a novel vortex-induced vibration piezoelectric energy harvester attached to two asymmetrical splitter plates (VIVPEH-S) to convert the vibration mode from VIV to galloping and improve the energy harvesting efficiency. The effects of installation angles on the vibration characteristics and harvesting performance are experimentally investigated, and the vortex shedding characteristic and mode conversion mechanism are revealed by CFD simulation. The results demonstrate significant improvement in energy harvesting performance with the installation of asymmetrical splitter plates.
Article
Computer Science, Information Systems
Joanna Bijak, Tomasz Trawinski, Marcin Szczygiel
Summary: The aim of this paper is to establish mathematical modeling and simulation to calculate the voltage induced during movement of the moveable magnet in a double-sided magnetic spring. changing the geometrical dimensions and shape of permanent magnets allows one to control the stiffness of the double-sided magnetic spring and the natural frequency of the energy harvester system.
Article
Acoustics
Fengxia He, Zhong Luo, Lei Li, Xiaoxia Zhang
Summary: Similitude laws are used to predict the vibration characteristics of composite laminated plates in an effective and convenient way. Sensitivity analysis and modal assurance criterion improve the prediction accuracy of natural frequency and mode shapes, respectively.
JOURNAL OF VIBRATION AND CONTROL
(2022)
Article
Multidisciplinary Sciences
Guoqing Jiang, Ting Dong, Zhenkun Guo
Summary: This study investigates the nonlinear behaviors and energy harvesting of an unsymmetric cross-ply square composite laminated plate with a piezoelectric patch. The plate exhibits snap-through motion with larger amplitude due to the thermal stress, and the influence of base excitation amplitude on nonlinear behaviors and energy harvesting is analyzed. The power generation efficiency is optimal within a certain range of excitation amplitude, making the plate a potential candidate for applications in morphing aircraft, large deployable antenna, and solar panel systems with nonlinear vibrations.
Article
Acoustics
Ao Zhang, Vladislav Sorokin, He Li
Summary: This paper focuses on a novel configuration of pendulum absorber harvester using magnets, which improves vibration suppression and energy harvesting characteristics. The results show superior performance compared to conventional devices in both aspects. Experimental testing validates the theoretical results.
JOURNAL OF SOUND AND VIBRATION
(2021)
Article
Green & Sustainable Science & Technology
Dongxing Cao, Xiangdong Ding, Xiangying Guo, Minghui Yao
Summary: This paper proposed a flow-induced piezoelectric vibration energy harvester with magnetic force enhancement and demonstrated its effectiveness in improving the acquisition voltage, especially in low velocity water flow. The introduction of magnetic force showed positive effects on enhancing the harvesting performance of the vibration energy harvester.
INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING-GREEN TECHNOLOGY
(2021)
Article
Mechanics
Michio Innami, Shinya Honda, Katsuhiko Sasaki, Yoshihiro Narita
Summary: An accurate and straightforward analytical method is proposed for the free vibration analysis of laminated composite rectangular plates with blended layers. The method is verified through numerical comparisons and tested in vibration optimization, showing that the introduction of blended layers is an effective approach to design the dynamic characteristics of laminated composite plates.
COMPOSITE STRUCTURES
(2021)
Article
Engineering, Electrical & Electronic
P. Deepak, Boby George
Summary: This study introduces a new magnetically coupled method to efficiently transfer vibrational energy to a piezoelectric energy harvester from a source where direct physical contact is not possible. The proposed method offers flexibility in adjusting resonant frequency and increases bandwidth and performance by introducing nonlinearity through magnets.
IEEE SENSORS JOURNAL
(2021)
Article
Chemistry, Analytical
Nia Hannon, Christopher W. Harrison, Marcin J. Krasny, Daniel Zabek
Summary: This report introduces a liquid energy harvesting device that utilizes a ferrofluid and a permanent magnet-inductor coil assembly to effectively convert mechanical vibrations into electrical energy. Unlike solid vibration energy harvesting devices, the liquid nature of the ferrofluid overcomes space conformity limitations, enabling the utilization of a wider range of previously inaccessible mechanical vibration energy sources for electricity generation and sensing. The proposed design can continuously convert mechanical energy into electrical energy for direct discharge or accumulation and storage.
Article
Materials Science, Multidisciplinary
Yi Yuan, Jian Li, Ronghao Bao, Weiqiu Chen
Summary: In this paper, a double-layer phononic crystal beam is constructed using shape memory alloy springs, electromagnets, ordinary springs, and two metal beams. The electromagnets can be controlled to be in contact or separated by means of temperature and electric current. The study investigates the influence of different parameters on the bandgap properties and shows that temperature, electric current, lattice constant, and shape memory alloy spring stiffness have significant effects on the bandgaps, while ordinary spring stiffness and magnetic force have more localized modifications. The designed structure has the potential to actively control low-frequency noise reduction.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2022)
Article
Materials Science, Multidisciplinary
Beibei Xu, Jiao Wang, Weiqiu Chen, Bin Liu
Summary: This paper discusses the applicability of dynamic homogenization models in certain dynamic phenomena and investigates various phenomena in heterogeneous materials, such as supersonic propagation and the evolution of energy distribution. The findings pose challenges to the establishment of dynamic homogenization models.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2023)
Article
Materials Science, Multidisciplinary
Zhen Yang, Zhicheng Zhang, Chengbin Liu, Cunfa Gao, Weiqiu Chen, Chunli Zhang
Summary: This article investigates the electromechanical coupling behaviors of a hollow piezoelectric semiconductor (PS) composite cylinder and presents analytical solutions for different boundary conditions. The effects of geometric parameters and interface bonding condition on the multifield coupling responses and piezotronic effects are discussed.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2023)
Article
Chemistry, Physical
Lifeng Zhu, Zhicheng Zhang, Dejuan Kong, Chengbin Liu, Zhigang Cao, Weiqiu Chen, Chunli Zhang
Summary: In this paper, a two-dimensional phononic crystal sensor based on triboelectric nanogenerators is proposed for real-time monitoring of elastic wave disturbances on buildings and equipment. The sensor can also absorb or suppress vibrations with specific frequencies.
Article
Engineering, Mechanical
Xin Fang, Peng Sheng, Jihong Wen, Weiqiu Chen, Li Cheng
Summary: This study systematically investigates the vibration and sound radiation of nonlinear acoustic metamaterials (NAMs) and proposes two design strategies for achieving ultra-low and broadband vibration and sound radiation suppression. Furthermore, the study clarifies the mechanisms underlying these characteristics.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2022)
Article
Engineering, Ocean
Shuang Zhao, Kuihua Wang, Juntao Wu, Weiqiu Chen, Yuan Tu
Summary: This study investigates the vertical bearing behaviors of flexible batter pile groups in sand. Model tests and finite-element analysis are conducted to study the effects of batter angle on vertical bearing capacities and internal force distributions. A design method is proposed for predicting the bearing ratios of batter pile groups.
MARINE GEORESOURCES & GEOTECHNOLOGY
(2023)
Article
Chemistry, Physical
Liang Sun, B. Javvaji, Chunli Zhang, Xiaoying Zhuang, Weiqiu Chen
Summary: In this study, the effect of out-of-plane flexoelectricity on a bilayer MoS2 Schottky contact was investigated using the Conductive Atomic Force Microscope (CAFM). It was found that the absence of out-of-plane piezoelectricity in the molybdenum-to-sulfur bond symmetry led to a change in the barrier height of the Schottky contact. The out-of-plane flexoelectric coefficients of the bilayer MoS2 were quantitatively determined as f(3333) = 0.4758 nC/m and f(3113) = f(3223) = 0.2867 nC/m.
Article
Mechanics
Jiaqing Jiang, Yun Wang, Weiqiu Chen, Rongqiao Xu
Summary: This paper proposes a two-dimensional analytical model for composite beams using the equivalent transformation of cross section. The state equations are derived based on the mixed variational principle and solved using the differential quadrature method. The method allows for convenient handling of transfer characteristics at the interlayer interfaces of composite beams and can serve as benchmarks for various one-dimensional beam theories.
COMPOSITE STRUCTURES
(2023)
Article
Engineering, Mechanical
Zhicheng Zhang, Chao Liang, Dejuan Kong, Zhengguang Xiao, Chunli Zhang, Weiqiu Chen
Summary: This study investigates the dynamic buckling and free bending vibration of an axially compressed piezoelectric semiconductor (PS) rod at the nanoscale, and analyzes the effects of surface effect on the critical dynamic buckling loads and damped resonance frequencies. Furthermore, the influences of axial compressive force and initial electron concentration on the effective damping ratio of the vibrating PS rod are studied.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2023)
Review
Engineering, Mechanical
Zinan Zhao, Yingjie Chen, Xueyan Hu, Ronghao Bao, Bin Wu, Weiqiu Chen
Summary: This paper reviews the mechanics of dielectric elastomers (DEs), including their dynamic responses, nonlinear electroelasticity, and periodic structures. The research results provide design and solution approaches, and discuss the underlying physics. It offers a useful guide for future studies.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2023)
Article
Engineering, Mechanical
Guozhan Xia, Wei Hong, Weiqiu Chen
Summary: In this paper, a physical model of a layer-substrate system penetrated by a rigid indenter was established to interpret the indentation test of advanced materials. The indentation of a pre-deformed compressible soft electroactive (SEA) layer on an elastic substrate was formulated as a Fredholm integral equation of the second kind and solved using a customized finite-difference scheme. The modified JKR model was used to incorporate surface adhesion for the layer-substrate system. The effects of adhesion and substrate on the indentation responses were investigated for a neo-Hookean ideal dielectric elastomer.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2023)
Article
Computer Science, Interdisciplinary Applications
Zonghao Li, Xueyan Hu, Weiqiu Chen
Summary: Topology optimization is a powerful structural design method, but the optimal topologies obtained by the traditional density-based method are difficult to manufacture. The Moving Morphable Components (MMC) approach has been introduced to bridge the gap between design and manufacture. However, the lack of geometric arbitrariness in previous studies remains unsatisfactory.
STRUCTURAL AND MULTIDISCIPLINARY OPTIMIZATION
(2023)
Article
Engineering, Mechanical
Hang Hang Xu, Hui Chen Luo, Xue Gang Zhang, Wei Jiang, Xing Chi Teng, Wei Qiu Chen, Jie Yang, Yi Min Xie, Xin Ren
Summary: Auxetic materials have been extensively studied due to their unique mechanical properties and deformation modes. However, their practical engineering applications are limited by their low stiffness. This study combines re-entrant aluminum honeycomb with aluminum foam to enhance the stiffness of auxetic materials. Experimental and numerical investigations on the mechanical properties and deformation modes are conducted, along with the analysis of the effects of geometrical parameters. The proposed auxetic composite structures show promising applications in vehicle engineering, protective engineering, and aerospace engineering due to their superior performance.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2023)
Article
Engineering, Multidisciplinary
Z. Jiao, T. Heblekar, G. Wang, R. Xu, W. Chen, J. N. Reddy
Summary: The dual mesh control domain method (DMCDM) proposed by Reddy combines the advantages of the finite element method (interpolation of variables) and the finite volume method (satisfaction of the global form of the governing equations). This study extends the DMCDM for analyzing plane elasticity problems on non-rectangular domains meshed with arbitrarily shaped elements. The results show that the DMCDM exhibits excellent convergence and accuracy while requiring less computational cost when compared with the finite element method (FEM).
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
(2023)
