Article
Chemistry, Multidisciplinary
Wieslaw Grzesikiewicz, Michal Makowski
Summary: This article discusses the vibration of a vehicle equipped with four semi-active dampers. The criteria function is chosen to estimate the effect of vehicle vibration damping, and signals for controlling the operation of the semi-active dampers are determined. Analysis is conducted on determining optimal force values and the simulation results show a significant improvement in comfort index compared to traditional suspension.
APPLIED SCIENCES-BASEL
(2021)
Article
Engineering, Civil
Mahdi Moradmand, Fereidoun Amini, Pedram Ghaderi
Summary: A smart structure integrating a semi-active control strategy with an online synchronization-based damage detection method has been developed, which shows satisfactory performance in real-time damage identification and vibration suppression. The proposed method exhibits high efficiency and capability in reducing total energy consumption compared to traditional vibration control methods.
INTERNATIONAL JOURNAL OF STRUCTURAL STABILITY AND DYNAMICS
(2021)
Article
Engineering, Civil
Xiang Shi, Zhiwei Wu, Yingyu Hua, Wei Shi, Songye Zhu, Jinyang Li
Summary: The traditional semi-active suspension system suffers from low energy consumption and compromised control performance. This paper proposes a novel semi-active suspension system that combines passive negative stiffness spring and semi-active damper to achieve both low energy consumption and excellent control performance.
INTERNATIONAL JOURNAL OF STRUCTURAL STABILITY AND DYNAMICS
(2023)
Article
Engineering, Mechanical
J. Yang, D. Ning, S. S. Sun, J. Zheng, H. Lu, M. Nakano, S. Zhang, H. Du, W. H. Li
Summary: Active suspensions have excellent performance in reducing vibrations, but have high power consumption, cost, and potential instability issues. Semi-active suspensions are simple and stable, but do not provide equivalent performance. This new semi-active suspension with negative stiffness component using MR damper provides vibration-reduction performance comparable to active systems, avoiding the disadvantages of active control.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2021)
Review
Chemistry, Multidisciplinary
Luca Zoccolini, Eleonora Bruschi, Sara Cattaneo, Virginio Quaglini
Summary: This paper reviews the development of fluid viscous dampers (FVDs) and focuses on the current trends in the field, including the transition from passive to semi-active and adaptive systems. The paper also examines the implementation of different types of dampers, such as electrorheological and magnetorheological dampers. These advancements have the potential to greatly reduce the effects of dynamic loading conditions like earthquakes.
APPLIED SCIENCES-BASEL
(2023)
Review
Acoustics
Grigorios M. Chatziathanasiou, Nikolaos A. Chrysochoidis, Dimitris A. Saravanos
Summary: This article presents a semi-active tuned mass damper with a piezoelectric device connected to an external circuit, allowing for multi-modal vibration control, high tunability, and high damping. The experimental results validate the strong electromechanical coupling and enhanced vibration suppression capabilities of the proposed damper, which also demonstrates substantial semi-active broadband multi-modal vibration control potential.
JOURNAL OF VIBRATION AND CONTROL
(2022)
Article
Construction & Building Technology
Majd Javanbakht, Shaohong Cheng, Faouzi Ghrib
Summary: This study proposes an adaptive output-only control scheme for cable vibration control using semi-active MR dampers. By optimizing the SAC parameters and developing a real-time force tracking strategy, the proposed control system effectively mitigates cable vibration under various types of excitation and demonstrates robustness.
STRUCTURAL CONTROL & HEALTH MONITORING
(2022)
Article
Automation & Control Systems
Xiangjun Xia, Minyi Zheng, Pengfei Liu, Nong Zhang, Donghong Ning, Haiping Du
Summary: This paper proposes a hybrid controller for seat suspension equipped with an advanced electromagnetic damper system to meet the requirements of vibration isolation and energy saving. An observer is designed to estimate seat suspension friction, which is used to compensate for the frictional influence in an H infinity controller. The hybrid controller effectively controls low-frequency vibration with the friction observer-based H infinity controller and switches to a passive state at high frequencies based on the dominant frequency of the vibration.
Article
Physics, Applied
Haitao Li, Zhihao Ke, Huan Huang, Yan Li, Shan Wang, Zigang Deng
Summary: This paper proposes a semi-active secondary suspension designed for the HTS pining maglev system, which can adjust the damping coefficient adaptively according to the motion state of the maglev vehicle, thereby improving the dynamic performance of the maglev system.
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS
(2022)
Article
Construction & Building Technology
Seyed Amin Hosseini, Vahid Jahangiri, Ali Massumi
Summary: This paper presents a pioneering study on the seismic vibration control of steel moment-resisting frames (MRFs) with setback irregularities using semi-active tuned mass dampers (SATMDs). The research investigates the efficiency and location of the SATMDs and compares their efficiency with traditional tuned mass dampers (TMDs) for the vibration control of setback structures with different vertical irregularities. The results reveal that the use of SATMDs reduced the seismic response of irregular frames with setbacks and the efficiency of SATMDs in the control of setback frames was more than the regular frames.
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
(2023)
Article
Instruments & Instrumentation
Xiumei Du, Gaowei Han, Miao Yu, Youxiang Peng, Xiaoying Xu, Jie Fu
Summary: This paper investigates fault diagnosis and fault-tolerant methods for a semi-active vehicle suspension system with MR damper, including establishing a system model, using UIO to detect faults, utilizing the correlation coefficient method to isolate faults, and designing a fault-tolerant controller. Simulation results show that the proposed FTC outperforms systems without fault-tolerance when MR damper faults occur.
SMART MATERIALS AND STRUCTURES
(2021)
Article
Engineering, Mechanical
Cheng Zheng, Zhongyu Bao, Bingsan Chen, Songma Wei, Xiaoyu Yan, Shangchao Hung
Summary: This paper conducts analysis and research on the semi-active control of the vibration reduction system of a vibratory roller with nonlinear stiffness and fractional damping. A two-degree-of-freedom semi-vehicle mathematical model with nonlinear stiffness and fractional damping is established, and the fractional calculus operator is approximated using the Oustaloup filter algorithm. The vibration characteristics of passive control, proportional integral derivative control, and fractional-order (PID mu)-D-lambda control are simulated and analyzed. Results show that the vibration reduction effect of the first-stage vibration reduction device of the vibratory roller is significantly improved using the fractional-order (PID mu)-D-lambda controller, providing a new idea for the research of vibration reduction systems in vibratory rollers.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART E-JOURNAL OF PROCESS MECHANICAL ENGINEERING
(2023)
Article
Acoustics
Grigorios M. Chatziathanasiou, Nikolaos A. Chrysochoidis, Christoforos S. Rekatsinas, Dimitris A. Saravanos
Summary: This paper presents a semi-active electromechanical Tuned Mass Damper (SATMD) that provides robust multi-modal vibration suppression capabilities in large flexible structures. Numerical and experimental evaluations show that the proposed SATMD has effective vibration reduction capabilities in low-frequency range.
JOURNAL OF SOUND AND VIBRATION
(2022)
Article
Construction & Building Technology
Zeming Zhao, Kai Wei, Fang Cheng, Huailong Li, Ping Wang
Summary: Nonlinear vibration control theory has effectively addressed issues that linear control theories couldn't solve. By utilizing MR-Ds and VS-VIs in FST, parameter optimization and dynamic modeling have improved low-frequency vibration reduction. Key parameters include positive and negative stiffness, as well as damping ratio for achieving optimal vibration reduction effects.
STRUCTURAL CONTROL & HEALTH MONITORING
(2021)
Article
Engineering, Mechanical
Zhipeng Zhao, Xiuyan Hu, Qingjun Chen, Yanchao Wang, Na Hong, Ruifu Zhang
Summary: This study develops a friction pendulum-strengthened tuned liquid damper (FPTLD) as a hybrid isolating system to protect structures against destructive earthquakes. The FPTLD combines a friction pendulum subsystem and a liquid tank with sloshing liquid to enhance the multiple seismic performances of the superstructure and the isolation floor. Compared with conventional and tuned liquid damper-equipped isolation systems, the FPTLD efficiently utilizes the entire liquid for energy absorption and demonstrates a robust multiperformance mitigation effect against the variation in the liquid height.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2023)
Article
Engineering, Civil
Kaiqi Lin, You-Lin Xu, Xinzheng Lu, Zhongguo Guan, Jianzhong Li
Summary: The study proposes a collapse prognosis method for long-span cable-stayed bridges under strong earthquakes, which accurately evaluates the seismic performance and failure mechanisms.
EARTHQUAKE ENGINEERING & STRUCTURAL DYNAMICS
(2021)
Article
Engineering, Multidisciplinary
Kaiqi Lin, You-Lin Xu, Xinzheng Lu, Zhongguo Guan, Jianzhong Li
Summary: Accurate finite element models are crucial in the design and maintenance of long-span bridges, and updating the model is necessary to better represent the real situation. This study proposes a time history analysis-based nonlinear finite element model updating method, which has been validated to improve accuracy.
STRUCTURAL HEALTH MONITORING-AN INTERNATIONAL JOURNAL
(2021)
Article
Construction & Building Technology
You-Lin Xu, Rongpan Hu
Summary: This paper presents a probabilistic assessment framework for seismic performance of super high-rise buildings, which combines fragility curves and extreme value distribution to estimate damage states of key structural components. By conducting dynamic analysis on the building model and using the Kalman smoothing algorithm, the framework shows reliable performance in a real building.
JOURNAL OF STRUCTURAL ENGINEERING
(2021)
Article
Construction & Building Technology
Qi Xia, Wang-lin Wu, Fu-nian Li, Yong Xia, Xiao-li Ding, William H. K. Lam, Weng-hong Chung, You-lin Xu
Summary: The structural performance monitoring system for the butterfly-shaped arch footbridge at The Hong Kong Polytechnic University is a result of multidisciplinary collaboration, featuring a variety of sensors and advanced technologies for real-time monitoring and a multifunctional platform for teaching and public education.
STRUCTURAL CONTROL & HEALTH MONITORING
(2021)
Article
Engineering, Civil
Xiang Xu, You-Lin Xu, Guo-Qing Zhang
Summary: This study proposes a cloud-based analytic hierarchical process (C-AHP) rating system for long-span suspension bridges to determine inspection intervals. By incorporating a three-level hierarchical structure and Gaussian cloud model into the AHP rating system, this system considers both fuzziness and randomness, providing stricter time intervals.
STRUCTURE AND INFRASTRUCTURE ENGINEERING
(2023)
Article
Construction & Building Technology
Chen Fang, You-Lin Xu, Rongpan Hu, Zifeng Huang
Summary: This study introduces a structural health evaluation system for long-span bridges, which incorporates long-term structural health monitoring system and data analysis methods to assess the health status of the bridge, defining different monitoring statuses as references for maintenance and management decisions.
STRUCTURAL CONTROL & HEALTH MONITORING
(2022)
Article
Engineering, Civil
Chen Fang, You-Lin Xu, Yongle Li
Summary: This study proposes an optimized C-vine copula for constructing the joint probability distribution and environmental contour of wind speed, wave height, and wave period for sea-crossing bridges. The method improves accuracy and has been successfully applied to a real site.
JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS
(2022)
Article
Construction & Building Technology
Qi Xia, Wang-lin Wu, Fu-nian Li, Xiao-qing Zhou, You-lin Xu, Yong Xia
Summary: This study develops a unified approach of heat-transfer and structural analyses for the first time to calculate the temperature distribution and the associated responses of an entire structure by integrating the field monitoring data. The manual intervention is avoided by sharing the same FEM for heat-transfer and structural analyses using different element types.
ADVANCES IN STRUCTURAL ENGINEERING
(2022)
Article
Construction & Building Technology
Chen Fang, Yongle Li, You-Lin Xu
Summary: This study focuses on the nonlinear dynamic response analysis of long span sea-crossing bridges under three-dimensional correlated wind and wave loads. The research considers both geometric and aerodynamic nonlinearities, and utilizes an optimized C-vine copula to construct a joint probability distribution and environmental contour. The results show that considering the 3D correlated wind and wave loads significantly reduces the nonlinear response of the bridge.
ADVANCES IN STRUCTURAL ENGINEERING
(2022)
Article
Engineering, Geological
Kaiqi Lin, You-Lin Xu, Xinzheng Lu, Zhongguo Guan, Jianzhong Li
Summary: This study proposes a digital twin-based life-cycle seismic performance assessment method for long-span cable-stayed bridges, which provides a more accurate estimation of the service life by considering the digital twin-based structural response prediction method considering lifetime earthquake occurrence and sequence.
BULLETIN OF EARTHQUAKE ENGINEERING
(2023)
Article
Engineering, Civil
Guo-Qing Zhang, Bin Wang, Qing Zhu, You-Lin Xu
Summary: With the increase in span of suspension bridges, the phenomenon of vortex-induced vibration (VIV) occurs more frequently, posing a serious threat to drivers' ride comfort. To provide guidance for bridge managers to determine when to reduce vehicle speed and close the bridge, this study investigates the behavior of vehicles and drivers' ride comfort in multi-mode lock-in regions of long suspension bridges. A coupled vortex-vehicle-bridge (VVB) system is developed and the drivers' ride comfort is evaluated according to the ISO 2631-1 standard. The impact of wheel jumping and rough road conditions on ride comfort is also considered.
JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS
(2023)
Article
Engineering, Civil
Zhong-Xu Tan, You-Lin Xu, Le-Dong Zhu, Qing Zhu
Summary: Wind-induced stress analysis is crucial for evaluating the failure and damage of long-span bridges in wind-prone regions. This study compares different wind loading and structure models and finds that using a simplified beam model underestimates the stress and neglecting wind load distribution leads to further underestimation. Therefore, it is recommended to use refined FE models and distributed wind load models for accurate assessment of wind-induced stresses.
INTERNATIONAL JOURNAL OF STRUCTURAL STABILITY AND DYNAMICS
(2023)
Article
Engineering, Civil
Guo-Qing Zhang, You-Lin Xu, Bin Wang, Qing Zhu
Summary: The rapid growth of suspension bridges' span has led to an increased occurrence of vortex-induced vibration (VIV), which results in significant economic losses when the bridge is closed. However, most studies have focused on VIV of bridges subjected to smooth winds, neglecting the effects of turbulence. This study develops a system that considers both vortex-induced forces and buffeting forces in a turbulent flow, and applies it to a real long suspension bridge with different types of vehicles.
INTERNATIONAL JOURNAL OF STRUCTURAL STABILITY AND DYNAMICS
(2023)
Article
Engineering, Civil
Bin Wang, Shengran Hao, You-Lin Xu, Yang Liu, Yongle Li
Summary: This paper analyzes the general polynomial model for vortex-induced force (VIF) and proposes a concise polynomial model and a simple method for predicting vortex-induced vibrations (VIV). Through computational fluid dynamics simulations, the effectiveness of the proposed method is verified.
JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS
(2023)
Article
Engineering, Electrical & Electronic
Zifeng Huang, You-Lin Xu
Summary: The S-transform and Multi-taper S-transform are methods for time-frequency analysis and spectral estimation of multi-variate stationary processes, with the MTST method shown to reduce bias and variance in estimates and compare favorably with other methods when applied to anemometer data in Hong Kong during Typhoon Mangkhut.
IEEE TRANSACTIONS ON SIGNAL PROCESSING
(2021)
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)
