Review
Acoustics
Sachchidanand Das, Murtaza Bohra, Sabareesh Geetha Rajasekharan, Yendluri Venkata Daseswara Rao
Summary: This study investigates the band-gap characteristics of periodic structures and the effect of periodic geometry on vibration characteristics, presenting a method for predicting frequency band-gaps and introducing the concept of 'real' and 'pseudo' band-gaps. The research identifies the optimal configuration of a periodic structure for maximum vibration attenuation and suggests potential applications in frame and channel design.
JOURNAL OF VIBRATION AND CONTROL
(2022)
Article
Engineering, Civil
Saumitra Jain, Sumiran Pujari, Arghadeep Laskar
Summary: The use of periodic foundations as a new base isolation technique can reduce the risk of damage to sensitive structural components in civil engineering structures. Periodic structures have the ability to block elastic waves and extend attenuation zones, effectively reducing the vibration response of structural systems.
Article
Mathematics, Applied
Yu Xue, Jinqiang Li, Yu Wang, Fengming Li
Summary: This work investigates the working mechanism of meta-beam with periodically attached nonlinear coupling multi-frequency resonators for vibration suppression. The experimental results agree well with the theoretical analysis, and the study also explores the dispersion properties of coupling band gaps and the nonlinear dynamic behavior of a finite-sized meta-beam.
COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION
(2023)
Article
Materials Science, Multidisciplinary
Seung Yoon On, Hyemi Moon, Seong Yeon Park, Tae Woong Ohm, Wonvin Kim, Hyunsoo Hong, Seong Su Kim
Summary: In this study, a Roman-bridge-inspired metamaterial for vibration isolation is proposed that combines a geometrical nonlinear structure and band gap effect by arranging periodic materials in a semicircular arched structure. Finite element analysis and band diagram analysis are conducted to verify the effectiveness of the periodic arch-structured metamaterial. The geometrical parameters of the metamaterial are optimized using a machine learning model, and the optimized structure is validated through numerical analysis and frequency response testing.
MATERIALS & DESIGN
(2022)
Article
Engineering, Civil
Chunfeng Zhao, Chao Zeng, Witarto Witarto, Hsuan Wen Huang, Junwu Dai, Y. L. Mo
Summary: This study validates the effectiveness of one-dimensional periodic foundation in reducing seismic response through experiments and numerical simulations, demonstrating its ability to act when seismic wave frequencies fall within the band gap range.
ENGINEERING STRUCTURES
(2021)
Article
Mechanics
Jiang-hai Wu, Yu-dong Sun, Ming-zhu Su, Hong-zhen Zhu
Summary: This paper studies the vibration band gap characteristics of a liquid-filled composite pipeline using the transfer matrix method. The correctness of the method is verified by comparing results with the finite-element method. The study shows that fluid-structure interaction and composite parameters have an impact on the band gap characteristics of the pipeline.
COMPOSITE STRUCTURES
(2023)
Article
Physics, Condensed Matter
Hong-yun Yang, Shu-liang Cheng, Xiao-feng Li, Qun Yan, Bin Wang, Ya-jun Xin, Yong-tao Sun, Qian Ding, Hao Yan, Ya-jie Li, Qing-xin Zhao
Summary: This paper proposes a new chiral lattice structure that can achieve low-frequency sound insulation or vibration reduction in engineering applications. Based on Bloch's theorem and finite element analysis, the energy band structures of different structures are calculated. The principle of band gap generation of Model No.1 is analyzed, and the effect of geometric parameters on the band gap is discussed. Additionally, the propagation characteristics of elastic waves with a specific frequency are explored. By verifying the relationship between finite element simulation of vibration transmission and the band gap frequency range in finite period structures, it is confirmed that the structure can effectively restrain vibration transmission. The research results show that the structure has excellent broadband gap performance in the frequency range of 3000 Hz and has a certain filtering effect on vibration transmission.
PHYSICA B-CONDENSED MATTER
(2023)
Article
Computer Science, Interdisciplinary Applications
Peng Zhou, Shui Wan, Xiao Wang, Aiming Song, Ru Yue
Summary: This paper investigates the frequency bandgaps of periodically arranged pile barriers for isolating environmental vibrations, taking the viscosities of piles and soil into consideration. The complex band diagram is introduced to evaluate the effective attenuation zone, and topology optimization is used to maximize its width. The optimized pile structures show better isolation effect than traditional ones, and the complex band diagram quantitatively evaluates the attenuation performance, saving computational resources.
COMPUTERS AND GEOTECHNICS
(2023)
Article
Engineering, Civil
Siting Hao, Hui Sheng, Xiaofei Lyu, Qian Ding
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
(2022)
Article
Engineering, Mechanical
Yang Jin, Xin-Yu Jia, Qian-Qian Wu, Guo-Cai Yu, Xiao-Lei Zhang, Shuai Chen, Lin-Zhi Wu
Summary: In this study, a lightweight cylindrical honeycomb sandwich structure with low-frequency vibration attenuation ability is designed and verified through theoretical analysis and experimental validation. The study confirms the excellent vibration suppression performance of the proposed cylindrical meta-structure with a plate inside.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2022)
Article
Construction & Building Technology
Xiao Wang, Shui Wan, Yuze Nian, Peng Zhou, Yingbo Zhu
Summary: This study explores the use of common building materials like concrete, rubber, and soil to prepare seismic metamaterials. It proposes design solutions for 1D and 2D seismic metamaterials, and analyzes the influence of geometric and material parameters on the band gaps.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Construction & Building Technology
Yu Li, Huguang He, Hailong Chen, Yang Liu, Wenhao Wang, Jianhua Dong, Fengnian Jin, Hualin Fan
Summary: A metastructure with periodic layered rubber-concrete structure and embedded rubber-mass resonators was designed and manufactured, providing two wave attenuation mechanisms. The meta-foundation exhibited superior vibration attenuation performance with greater wave attenuation and wider bandwidth compared to traditional foundations. The research highlights the significant advantages of using the metastructure with periodic layered structure and rubber-mass resonators in wave and vibration attenuation.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Mechanics
Arnab Banerjee, Muskaan Sethi, Bappaditya Manna
Summary: The aim of this paper is to present a unified method for simulating the dynamics of systems with friction. Through examples, the proposed method is validated and the results show that the frictional mass-in-mass unit can achieve a wide frequency attenuation band gap with medium frictional force, making it a good prospect for vibration reduction.
INTERNATIONAL JOURNAL OF NON-LINEAR MECHANICS
(2022)
Article
Acoustics
Yang Bu, Ye Tang, Qian Ding
Summary: Pipes conveying fluid are important fluid-solid coupling structures, but poor operating performances induced by unexpected vibration can cause damage to the related devices. To tackle this issue, a novel control technique using periodic acoustic black hole wedges is proposed for vibration self-suppression. Based on the Euler-Bernoulli beam model, the mechanical and dynamic equations are established, and the mechanism of elastic wave distributions of the periodic ABH pipes is investigated. The results demonstrate that the proposed technique effectively forms band gaps in low frequency bands and absorbs and scatters most of the energies.
JOURNAL OF SOUND AND VIBRATION
(2023)
Article
Engineering, Mechanical
Feng Liang, Yao Chen, Jun-Jie Gong, Yu Qian
Summary: This paper proposes a novel fluid-conveying phononic crystal pipe model and explores the transverse free vibration and wave attenuation performance of the spinning periodic structure using a planar spectral element model. The study reveals the peculiar band gap characteristic of the structure and investigates the effects of the number of cells, flow velocity, and component geometry on the natural frequencies and coupled band gaps.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2022)
Article
Mechanics
Zhibao Cheng, Min Li, Gaofeng Jia, Zhifei Shi
Summary: This paper proposes an adaptive Gaussian process (AGP) model to efficiently predict the complex dispersion relations for periodic structures. It first predicts the coefficients of the dispersion equation at selected frequencies, and then analytically solves the dispersion equation to establish the complex dispersion relation. PCA is used to reduce the dimension of these coefficients, and an adaptive procedure is integrated to improve the accuracy of the GP model.
EUROPEAN JOURNAL OF MECHANICS A-SOLIDS
(2022)
Article
Engineering, Mechanical
Zhibao Cheng, Qun Zhang, Zhifei Shi
Summary: This paper proposes an inerter enhanced dynamic vibration absorber (IDVA) to improve the low-frequency vibration mitigation performance of the floating slab track (FST). The analytical derivations and numerical simulations show that the IDVA is more effective in reducing vibrations and significantly decreasing the relative displacement response of the absorber compared to a regular dynamic vibration absorber.
VEHICLE SYSTEM DYNAMICS
(2023)
Article
Materials Science, Multidisciplinary
Yiran Zhang, Hongjun Xiang, Housong Deng, Xuebin Zhang, Jiawang Zhan, Zhifei Shi
Summary: This work focuses on vibration-based piezoelectric energy harvesting and considers two typical types of vibration sources. A stable system-level modeling method is presented, allowing the harvester to be modeled using conventional finite element software and co-simulated with nonlinear circuits. The proposed method is validated and employed to investigate the performances of harvesters under typical real vibrations. Design suggestions for PEHs under different types of vibration sources are also provided.
JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES
(2023)
Article
Construction & Building Technology
Zhibao Cheng, Haomin Ma, Zhifei Shi, Gaofeng Jia
Summary: This paper proposes an inerter enhanced floating floor structure (In-FFS) for seismic hazard mitigation. The In-FFS, equipped with a one-dimensional inerter-based composite system on traditional floating floor structure (FFS), can significantly improve seismic performance. Modal participation property analysis and time history analyses demonstrate that the In-FFS reduces relative displacement and decreases floor acceleration and inter-story drift of the primary structure.
JOURNAL OF BUILDING ENGINEERING
(2022)
Article
Engineering, Civil
Anchen Ni, Zhifei Shi
Summary: In this study, the concept of topological insulator is introduced into plates in civil engineering, and successfully obtains topologically protected interface states of flexural waves. Through topological wave transport between two domains with distinct topological phases, this novel topological metamaterial plate realizes wave guiding and wave attenuation simultaneously. The influence of geometric and material parameters on the interface states and band gap is discussed in detail. The dynamic characteristics of this novel type of plate are studied through full-field simulation in the frequency domain and experimentally validated. The study demonstrates high transmission efficiency and strong robustness against defects. The performance of the topological metamaterial plate in ambient vibration control is assessed based on measured acceleration records, facilitating the application of topological insulators in vibration mitigation, energy harvesting, and signal detection.
ENGINEERING STRUCTURES
(2023)
Article
Construction & Building Technology
Lingkai Meng, Zhifei Shi, Shengwang Hao, Zhibao Cheng
Summary: The filtering properties of a 2D periodic in-filled trench barrier system subjected to anti-plane and in-plane moving loads are investigated using the spatial Fourier transform and periodic structure theory. The dispersion equations for anti-plane and in-plane wave are obtained using the closed-form solution and the State-Space-Transfer-Matrix-Method (SSTMM), respectively. The vibration isolation regions of the barrier can be determined by comparing the attenuation zones (AZs) with the load-speed-line cluster.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Engineering, Civil
Haomin Ma, Zhibao Cheng, Zhifei Shi, Alessandro Marzani
Summary: This paper proposes a novel passive vibration control system called the Inertial Amplification Mechanism-based Absorber (IAM-A) to mitigate undesired structural vibrations. The design parameters of the IAM-A are obtained using H2 and H & INFIN; optimization methods, and parametric studies and numerical simulations are conducted to evaluate its performance. Results confirm that the IAM-A outperforms the traditional Tuned Mass Damper (TMD) method in suppressing dynamic responses of the primary structure and reducing relative displacement response of the absorber.
ENGINEERING STRUCTURES
(2023)
Article
Engineering, Civil
Anchen Ni, Zhifei Shi, Qingjuan Meng, C. W. Lim
Summary: This study proposes a novel shallow buried periodic in-filled pipe barrier for mitigating surface waves. Through complex dispersion analysis, numerical simulations, and lab-scale experiments, the effectiveness and robustness of the barrier in attenuating surface waves are verified. The energy dissipation induced by material damping and local resonance of in-filled pipes contribute to wave attenuation. The feasibility of these novel wave barriers for mitigating train-induced vibrations is also preliminarily verified.
ENGINEERING STRUCTURES
(2023)
Article
Computer Science, Interdisciplinary Applications
Liangliang Wu, Zhifei Shi
Summary: This paper investigates the feasibility of using periodic pile barriers to mitigate vibrations in unsaturated soil. The study finds that periodic wave barriers in unsaturated soil can be designed to have a wide attenuation zone and effectively shield both P1 and S waves. This research removes obstacles for vibration mitigation in unsaturated soil by periodic pile barriers.
COMPUTERS AND GEOTECHNICS
(2023)
Article
Mechanics
Jiahua Zhou, Yonggang Gao, Zhifei Shi
Summary: In this study, a formula for calculating the equivalent radius of detuning periodic pile barriers is proposed and modified using a BP neural network for improved accuracy. The effectiveness and convenience of the equivalent radius formula are verified through the study of the dynamic performances of detuning periodic pile barriers.
JOURNAL OF APPLIED AND COMPUTATIONAL MECHANICS
(2022)
Proceedings Paper
Engineering, Civil
Jiahua Zhou, Xingbo Pu, Zhifei Shi
Summary: This paper investigates the application of a new type of metamaterial in vibration mitigation in civil engineering through theoretical analysis and numerical calculations. By generating dispersion effects through local resonance, the propagation of elastic waves in soil is prevented and bandgaps are formed. This has significant implications for designing periodic pile barriers to isolate elastic waves in soil.
ADVANCES IN TRANSPORTATION GEOTECHNICS IV, VOL 3
(2022)
Article
Engineering, Civil
Renbing An, Jiacong Yuan, Yi Pan, Duhang Yi
Summary: Traditional timber structures built on sloped land are more susceptible to seismic damage compared to structures built on flat land. The upper portion of the structure is found to be the weak point on sloped land, with potential issues such as tenon failure and column foot sliding.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Elyas Bayat, Federica Tubino
Summary: The current design guidelines for assessing floor vibration performance do not consider the influence of variability in the walking path on the dynamic response of floors. This study investigates the dynamic response of floors under a single pedestrian walking load, taking into account the randomness of the walking path and load. The effectiveness of the current guidelines in predicting floor response is critically assessed.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Gao Ma, Chunxu Hou, Hyeon-Jong Hwang, Linghui Chen, Zhenhao Zhang
Summary: Minimizing earthquake damage and improving repair efficiency are the main principles of resilient structures. This study proposed a repairable column with UHPC segments and replaceable energy dissipaters. The test results showed that the columns with UHPC segments and replaceable dissipaters exhibited high strength, deformation capacity, and energy dissipation.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Kartheek S. M. Sonti, Pavan Kumar Penumakala, Suresh Kumar Reddy Narala, S. Vincent
Summary: In this study, the compressive behavior of alumina hollow particles reinforced aluminum matrix syntactic foams (AMSF) was investigated using analytical, numerical, and experimental methods. The results showed that the FE solver ABAQUS could accurately predict the elastic and elastio-plastic behavior of AMSFs. The study also suggested that FE models have great potential in developing new materials and composites under compression loading.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Zheqi Peng, Xin Wang, Zhishen Wu
Summary: In this study, the statistical modeling of fiber-reinforced polymer (FRP) cables using the classic fiber bundle model is explored. The study considers important features of large-scale multi-tendon FRP cables, such as initial random slack and uneven tensile deformation among tendons. A parametric study and reliability analysis are conducted to predict the load-displacement relation and design thousand-meter-scale FRP cables. The study emphasizes the relation between the reliability index beta of the cable and the safety factor gamma of the FRP material.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Yanchao Shi, Shaozeng Liu, Ye Hu, Zhong-Xian Li, Yang Ding
Summary: This paper introduces a damage assessment method for reinforced concrete (RC) columns under blast loading, using modal parameter measurement as the evaluation index. The validity of the proposed method is validated through numerical and experimental analysis. The results show that this modal-based damage assessment method is applicable for non-destructive evaluation of blast-induced damage of RC columns.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Xiaolin Zou, Maosheng Gong, Zhanxuan Zuo, Qifang Liu
Summary: This paper proposes an efficient framework for assessing the collapse capacity of structures in earthquake engineering. The framework is based on an accurate equivalent single-degree-of-freedom (ESDOF) system, calibrated by a meta-heuristic optimization method. The proposed framework has been validated through case studies, confirming its accuracy and efficiency.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Jie Hu, Weiping Wen, Chenyu Zhang, Changhai Zhai, Shunshun Pei, Zhenghui Wang
Summary: A deep learning-based rapid peak seismic response prediction model is proposed for the most common two-story and three-span subway stations. The model predicts the peak seismic responses of subway stations using a data-driven approach and limited information, achieving good predictive performance and generalization ability, and demonstrating significantly higher computational efficiency compared to numerical simulation methods.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Jin Ho Lee, Jeong-Rae Cho
Summary: A simplified model is proposed to estimate the earthquake responses of a rectangular liquid storage tank considering the fluid-structure interactions. The complex three-dimensional structural behavior of the tank is represented by a combination of fundamental modes of a rectangular-ring-shaped frame structure and a cantilever beam. The system's governing equation is derived, and earthquake responses such as deflection, hydrodynamic pressure, base shear, and overturning moment are obtained from the solution.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
W. J. Lewis, J. M. Russell, T. Q. Li
Summary: The work discusses the key features and advantages of optimal 2-pin arches shaped by statistically prevalent load and constant axial stress. It extends the design space of symmetric arches to cover asymmetric forms and provides minimum values of constant stress for form-finding of such arches made of different materials. The analysis shows that constant stress arches exhibit minimal stress response and have potential implications for sustainability and durability of future infrastructure.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Wen-ming Zhang, Han-xu Zou, Jia-qi Chang, Tian-cheng Liu
Summary: Saddle position is crucial in the construction and control of suspension bridges. This study proposes an analytical approach to estimate the saddle positions in the completed bridge state and discusses the calculation under different definitions. The relationship between the saddle position and the tower's centerline is analyzed, along with the eccentric compression of the tower. The feasibility of the proposed method is verified through a real-life suspension bridge.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Shaise K. John, Alessio Cascardi, Yashida Nadir
Summary: This study experimentally investigated the use of TRM material for reinforcing concrete columns. The results showed that increasing the number of textile layers effectively increased the axial strength. Additionally, the choice of fiber type and hybrid textile configuration also had a significant impact on strength improvement. A new design model that considers the effects of both the confining matrix and textile was proposed.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Chandrashekhar Lakavath, S. Suriya Prakash
Summary: This study experimentally investigated the shear behavior of post-tensioned UHPFRC girders, considering factors such as prestress level, fiber volume fraction, and types of steel fibers. The results showed that increasing prestress and fiber dosage could enhance the ultimate load-carrying capacity of the girders, reduce crack angle, and increase shear cracking load.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Vahid Goodarzimehr, Siamak Talatahari, Saeed Shojaee, Amir H. Gandomi
Summary: In this paper, an Improved Marine Predators Algorithm (IMPA) is proposed for size and shape optimization of truss structures subject to natural frequency constraints. The results indicate that IMPA performs better in solving these nonlinear structural optimization problems compared to other state-of-the-art algorithms.
ENGINEERING STRUCTURES
(2024)
Article
Engineering, Civil
Chun-Xu Qu, Jin-Zhao Jiang, Ting-Hua Yi, Hong-Nan Li
Summary: In this paper, a computer vision-based method is proposed to monitor the deformation and displacement of building structures by obtaining 3D coordinates of surface feature points. The method can acquire a large number of 3D coordinates in a noncontact form, improve the flexibility and density of measurement point layout, and is simple and cost-effective to operate.
ENGINEERING STRUCTURES
(2024)
