Vibroengineering Procedia: Table of Contents

Road zoning in the Fergana Valley based on the level of traffic safety

Urokov, Aslidin — 2025-12-22T00:00:00Z

Vibroengineering Procedia, Vol. 60, 2025, p. 268-275.
Aslidin Urokov, Dilmurod Tashev, Sherali Tojiboev, Zafar Utashov
The Fergana Valley is one of the most densely populated and traffic-intensive regions of Uzbekistan, where road safety remains a critical concern. This study develops a comprehensive zoning approach based on traffic safety levels by integrating statistical accident data, roadway characteristics, climatic conditions, and traffic flow parameters. A multilevel analysis was conducted to evaluate the influence of road geometry, pavement condition, traffic density, heavy-vehicle intensity, and environmental factors on accident frequency and severity. The methodology includes the calculation of a composite safety indicator incorporating relative accident rate, combined influence factor, and road-climate criteria. Measurement procedures, uncertainty estimation, and confidence intervals were applied to ensure the reliability of the collected data. The resulting zoning scheme divides the region into distinct safety categories, providing a practical framework for traffic management, infrastructure planning, and targeted accident-reduction measures. The findings highlight key risk factors and demonstrate the importance of region-specific safety zoning for improving transport operation efficiency and reducing accident risks.

Influence of powertrain topology (FWD vs RWD) on regenerative braking capabilities in electric vehicles

Seyran, Asanov — 2025-12-22T00:00:00Z

Vibroengineering Procedia, Vol. 60, 2025, p. 229-236.
Asanov Seyran, Umerov Fikret, Inoyatkhodjaev Jamshid, Bekmurodov Nodirbek, Kodirov Bobiromon
This study compares the regenerative braking capability and energy efficiency of a small-class electric vehicle based on the Wuling Macaron EV with FWD or RWD engine configuration. Both drivetrain configurations were simulated under NEDC and WLTP Class 3 driving cycles using MATLAB/Simulink and parallel regenerative braking control, with the vehicle’s maximum speed limited to 100 km/h to emulate real operating conditions. Drivetrain arrangement significantly affects regenerative energy recovery. FWD had greater negative battery current peaks during deceleration, faster energy recovery, and a slower SOC decline than RWD. FWD layouts achieved up to 15 % greater regeneration energy and 3.4 percent lower net energy use under WLTP conditions. Due to better front-axle load transfer, traction and regenerative torque improve. An average driving distance of 20,000 km in Uzbekistan results in an estimated annual energy savings of 98 kWh, or 88,000 UZS (≈8 USD) per vehicle. Data shows that electric automobiles with higher motor torque and power ratings may have better regenerative braking. The results show that front-wheel drive and proper motor features improve braking energy recovery and vehicle performance more efficiently and economically for small urban electric cars.

Application of laser scanning for automated efficiency assessment of solar panels: a case study in Uzbekistan

Takhirov, Shakhzod — 2025-12-22T00:00:00Z

Vibroengineering Procedia, Vol. 60, 2025, p. 276-283.
Shakhzod Takhirov, Sultan Kudratov, Akbar Normo’minov, Zhamshid Takhirov
This article presents an approach for automated assessment of the efficiency of pre-installed solar panel arrays. It is based on point clouds of large solar panel arrays distributed across space, with various orientations relative to the sun. As a typical example, without limiting the scope of application, a terrestrial laser scanner was used. Multiple buildings in a city block were laser-scanned to obtain the locations and orientations of the arrays. To demonstrate the developed approach, only one solar system on a building was considered in this study. The approach allows evaluating deficiencies in power production efficiency and comparing them with cost-effective modifications. The cost-benefit analysis can be performed based on this assessment. For future applications, the point clouds can be collected by other means, such as drones (for example).

Challenges to properly accounting for cyclic response in transversely isotropic elastic soil idealizations

Kaliakin, Victor N. — 2025-12-22T00:00:00Z

Vibroengineering Procedia, Vol. 60, 2025, p. 586-595.
Victor N. Kaliakin, Said Shaumarov, Daulet Khadim
The way natural soils are deposited gravitationally inherently leads to an anisotropic microfabric. The elasticity of such anisotropic soils has typically been idealized as being transversely isotropic (or “cross anisotropic”). The importance of elastic anisotropy in geotechnical engineering applications has particularly been invoked in conjunction with predicting ground deformations associated with underground structures such as deep excavations and tunnels. The development of elastic constitutive relations for transversely isotropic geomaterials is complicated by the fact that the elastic material parameters are usually not constant. This paper briefly reviews the issue of elasticity in soils. Following a short overview of isotropic elastic idealizations, the more relevant topic of transversely isotropic idealizations is discussed, with emphasis not only on monotonic but also on cyclic response.

IoT-enabled structural health monitoring: a case study in the Campi Flegrei seismic area

Nigro, Francesco — 2026-04-22T00:00:00Z

Vibroengineering Procedia, Vol. 61, 2026, p. 51-57.
Francesco Nigro, Domenico Santaniello, Angelo Lorusso, Francesco Colace, Enzo Martinelli
Traditionally, Structural Health Monitoring (SHM) relied on periodic manual inspections and visual assessments, which are inherently limited and subjective in nature, labor-intensive, and unable to detect hidden internal damage. Recently, the integration of the Internet of Things (IoT) has transformed the SHM paradigm by enabling the transition from reactive maintenance to proactive, continuous, and predictive strategies. Indeed, modern IoT systems allow for the deployment of dense, wireless, and cost-effective sensor networks that can capture real-time structural responses and transmit data directly to processing centers. In this context, the present work presents a preliminary application of integrated IoT and SHM techniques for an existing RC structure located in the Campi Flegrei area (near the city of Naples in Italy) that has recently been subjected to several earthquake swarms.

Flow-induced flapping of thin flexible plates

Pistis, Mario — 2026-04-22T00:00:00Z

Vibroengineering Procedia, Vol. 61, 2026, p. 123-129.
Mario Pistis, Victor A. Eremeyev, Giorgio Fotia, Antonio Cazzani
The behavior of highly flexible structures under Flow-Induced Vibrations (FIV) conditions, in certain flow regimes, is characterized by a strong coupling between the structural dynamics and fluid phenomena such as vortex shedding. This work presents selected results of ongoing research aimed at developing a fully open-source numerical framework to simulate the dynamic behavior of such structures immersed in complex fluid flows. The framework is based on a partitioned coupling approach of a fluid solver and a structural one, an Arbitrary Lagrangian-Eulerian mesh motion strategy, and Quasi-Newton Interface stabilization technique (IQN) that accounts for large displacements of the coupling interface. To illustrate the potential of such framework, we present strongly coupled Fluid-Structure Interaction (FSI) simulations of a thin flexible elastic plate subjected to FIV.

Research and implementation on dynamic measurement method for the vibrating wire instruments

Mao, Liangming — 2026-04-22T00:00:00Z

Vibroengineering Procedia, Vol. 61, 2026, p. 130-136.
Liangming Mao, Xiu Jiang, Bo Feng
The vibrating wire instrument is a magneto-inductive sensor capable of measuring various physical quantities such as temperature, stress, and displacement. It is widely used in geotechnical engineering safety monitoring due to its excellent long-term stability. The measurement process of this instrument involves two main stages: excitation and pickup, with an intermediate transition process. Traditional measurement methods follow a sequential step-by-step procedure, which results in relatively long measurement times, typically ranging from fractions of a second to several seconds, making it difficult to meet the requirements for dynamic measurement. This paper, based on the operational characteristics of the instrument, introduces a negative feedback excitation mechanism during the measurement of the frequency parameter f, in accordance with the dynamic monitoring requirements. This innovation allows for precise excitation and rapid output tracking of the vibrating wire. Additionally, the integration of high-speed AD acquisition cards and FFT signal analysis techniques overcomes the time bottleneck associated with traditional methods, thus enabling dynamic monitoring capabilities and expanding the engineering applications of the instrument.

Experimental study on residual stresses in stud welding based on X-ray diffraction and the blind-hole method

Li, Wei — 2026-04-22T00:00:00Z

Vibroengineering Procedia, Vol. 61, 2026, p. 137-143.
Wei Li, Yangming Xu, Yuhao Liu, Heyuan Zhou, Sicong Wei, Xu Han
During the stud welding process, residual stresses are inevitably induced due to the significant temperature gradients and associated heterogeneous thermal expansion and contraction. These residual stresses significantly influence the mechanical properties of the welded structure. Quantitative evaluation of the welding residual stress distribution on the steel plate surface was performed using X-ray diffraction (XRD) and the blind-hole method. Results demonstrate that the radial residual stress initially increases and subsequently decreases with increasing distance from the weld ring. The circumferential residual stress is characterized as compressive throughout the measured region, also exhibiting an initial increase, followed by a decrease, and a subsequent increase with greater distance from the weld center. Both radial and circumferential stresses form a compressive stress zone within the weld and its immediate vicinity, with a peak value of approximately 170 MPa. The significant solid-state phase transformations occurring in the weld metal and the adjacent heat-affected zone lead to the development of compressive stresses upon cooling. The compressive stresses observed in the base metal region, far from the weld, are likely attributable to the initial rolling stresses inherent to the steel plate.

Study on the impact of new pier cap construction on adjacent high-speed railway subgrades

Gong, Tian Hao — 2026-04-22T00:00:00Z

Vibroengineering Procedia, Vol. 61, 2026, p. 92-98.
Tian Hao Gong, Yun Long Yao
With the rapid development of rail transit, construction activities near existing high-speed railway lines have become increasingly frequent. However, most studies focus on excavation depth while neglecting lateral proximity effects and the complete construction sequence. This study establishes a PLAXIS 2D model with the HSS constitutive model, validated against field data, to investigate the effects of new pier cap construction on adjacent high-speed railway subgrades. The model evaluates displacements of subgrade soil, retaining walls, and pile foundations, and explores the influence of construction distance. Results show that maximum displacement occurs at the uppermost edge closest to the excavation. Among construction stages, bored pile activation and dewatering excavation exert the greatest impact. Quantitative thresholds for safe construction distances are proposed: within 1.8 m, substantial impact; 1.8-12 m, significant; 12-60 m, minor; beyond 60 m, negligible.

Vibration tests to identify numerical models of masonry arch bridges with backfill for non-linear seismic analysis

Montis, Elisa — 2026-04-22T00:00:00Z

Vibroengineering Procedia, Vol. 61, 2026, p. 58-64.
Elisa Montis, Salvador Ivorra, Maria Cristina Porcu
Integrating in-situ modal testing and numerical modelling based on experimental evidence is a powerful strategy for studying the dynamic behavior of existing constructions and making decisions about their retrofitting or monitoring. This paper applies this strategy to analyze the seismic behavior of an unreinforced masonry arch bridge in Spain, investigating on two different approaches to account for the backfill material. An extensive experimental campaign was conducted to determine the bridge’s mechanical and dynamic properties. Operational modal analysis, carried out using two accelerometer setups, was used to extract frequencies and modal shapes through algorithms in both the time and frequency domains. Two finite-element models of the bridge were built and identified: one that treats the backfill between the masonry wall faces as a structural material and another that does not include the backfill, instead redistributing its mass within the masonry density. The two models’ modal behavior and dynamic responses to a real earthquake were then compared to evaluate the effect of different ways of accounting for backfill.

Trajectory-oriented synthesis of a planetary-type vibration exciter for vibratory technological equipment

Korendiy, Vitaliy — 2026-04-22T00:00:00Z

Vibroengineering Procedia, Vol. 61, 2026, p. 1-10.
Vitaliy Korendiy, Oleh Parashchyn, Oleksandr Kachur, Viktor Lozynskyi, Serhii Hrevtsov, Nataliya Hembara
The paper considers an oscillatory system that consists of an elastically supported working member equipped with a ring gear, a carrier, two planet gears, and an eccentric unbalanced mass. A kinematic model of the planetary mechanism is developed to describe the motion of the excitation point and to determine the conditions under which circular, elliptical, straight-line, and hypotrochoidal trajectories can be generated. On this basis, a dynamic model of the vibratory system is formulated in the form of coupled second-order differential equations for the translational motion of the working member. Particular attention is paid to the synthesis of the geometric and kinematic parameters of the exciter, including the gear ratio, eccentricity, carrier arm length, and initial phase angle. The governing equations are solved numerically for representative parameter sets, and the resulting steady-state trajectories of both the working member and the unbalanced mass are analyzed. The results substantiate the condition that represents a boundary case separating single-frequency trajectories from genuine hypotrochoidal motion. The specific parameters governing the transition from circular to elliptical and rectilinear trajectories and determining the number and shape of the lobes in the hypotrochoidal regime are theoretically justified.

Bivariate regression model for the natural vibration period analysis of masonry minarets

Fasan, Marco — 2026-04-22T00:00:00Z

Vibroengineering Procedia, Vol. 61, 2026, p. 65-70.
Marco Fasan, Mariam A. Sallam, Hany M. Hassan, Chiara Bedon
This paper investigates the natural vibration periods for a set of 111 historical masonry minarets from Egypt, Turkey, Jordan, and Bosnia and Herzegovina. The database is compiled from literature publications and local archives, and includes minarets characterized by various geometries, design features, architectural styles, state of preservation, age. In particular, this paper develops a bivariate empirical model to estimate the natural vibration period of historical masonry minarets using geometric parameters such as height H and base width B (or diameter). Through extensive log-log regression analysis, it is shown that combining the height H with the base width B offers good estimates of the natural period. The developed bivariate (LL-BI(H,B)) model, in particular, shows low dispersion and strong statistical reliability. As such, it represents a practical and data-efficient tool for estimating the vibration period of masonry minaret, supporting large-scale seismic risk and heritage assessment where detailed structural data are limited.

Operational modal analysis for structural identification of reinforced concrete bridges: two case studies

Stochino, Flavio — 2026-04-22T00:00:00Z

Vibroengineering Procedia, Vol. 61, 2026, p. 79-85.
Flavio Stochino, Fausto Mistretta, Michele Serra, Arnas Majumder
The assessment of existing bridges requires diagnostic methods capable of identifying structural characteristics without interfering with normal service conditions. Operational Modal Analysis (OMA) represents a powerful technique for this purpose, as it allows the dynamic properties of structures to be extracted from ambient excitation sources such as traffic and environmental vibrations. This paper presents two applications of OMA to reinforced concrete bridge structures located in southern Sardinia, Italy. The first case study concerns a prestressed concrete viaduct composed of multiple simply supported box girders, while the second investigates two arch-stayed reinforced concrete bridges with identical geometry. Accelerometric measurements were acquired under operational conditions and processed using frequency-domain techniques to determine the fundamental natural frequencies of the structures. The experimental results were compared with numerical predictions obtained through finite element modeling. The comparison demonstrates a satisfactory agreement between measured and simulated modal properties, confirming the reliability of the adopted monitoring strategy. The presented approach highlights the potential of operational modal analysis as a practical tool for structural identification and long-term monitoring of existing bridge infrastructure.

Dynamic assessment of through-cracked laminated glass elements under repeated impacts

Cella, Nicola — 2026-04-22T00:00:00Z

Vibroengineering Procedia, Vol. 61, 2026, p. 144-150.
Nicola Cella, Chiara Bedon
Assessing the post-breakage performance of fractured laminated glass (LG) is challenging due to the complexity of damage progression. This study investigates the dynamic behavior of small-scale, through-cracked LG elements composed of two layers of annealed glass, bonded with different interlayers. Using a three-point-bending setup, the specimens were subjected to ten repeated hard-body impacts. To quantify the residual bending stiffness as a function of damage severity, experimental modal analyses were conducted via roving hammer tests, prior to and following each impact. The fundamental vibration frequency was utilized as preliminary diagnostic parameter. Experimental frequency estimates, supported by simplified ﬁnite element (FE) numerical modelling, reveal markedly distinct degradation patterns for the tested configurations.

Mechanical response and damage evolution of CFRP laminates under coupled thermal-impact loading

Wang, Fengfeng — 2026-04-22T00:00:00Z

Vibroengineering Procedia, Vol. 61, 2026, p. 151-157.
Fengfeng Wang, Jinyu Zhou, Lei Li
This study investigates the mechanical properties and dynamic damage characteristics of CFRP laminates under coupled thermal and impact loads. Through thermal environment simulation, impact loading, and multidimensional data acquisition, experimental data on velocity, acceleration, stress-strain, and energy absorption were obtained. The results show that the heat-impact coupling effect significantly degrades the material’s mechanical performance. This study provides a research foundation for enhancing the structural performance of CFRP under thermal shock, and lays a scientific basis for its engineering application under complex service conditions.

Research on the feasibility and force control measures in the construction process of long-span continuous rigid frame bridge with low piers

Liu, Yongxiang — 2026-04-22T00:00:00Z

Vibroengineering Procedia, Vol. 61, 2026, p. 172-177.
Yongxiang Liu, Cheng Yin, Xiongfeng Gao, Hao Peng
This paper studies a large-span low-pier continuous rigid frame bridge using Midas Civil to model a full-bridge simulation. It assesses two force-adjustment measures during construction: permanent counterweights at side-span cantilever ends and reverse thrusting at mid-span free ends. Monitoring data shows good agreement between measured pier forces/displacements and simulations, proving the feasibility of measures in improving the bridge’s force conditions.

Towards dynamic monitoring for treefall risk assessment and risk reduction on civil infrastructure operability

Civera, Marco — 2026-04-22T00:00:00Z

Vibroengineering Procedia, Vol. 61, 2026, p. 71-78.
Marco Civera, Alessio Rubino, Umberto Garlando, Elena Belcore
Tree failures, including branch breakage, trunk rupture, and uprooting, pose an ever-growing threat to public safety and the operability of transport infrastructure in both urban and rural environments. Ongoing trends, such as the increasing frequency and intensity of extreme meteorological events, combined with tree ageing and the spread of pathogens, are currently amplifying this risk. In this context, vibration-based inspection (VBI) is emerging as a promising quantitative approach for assessing tree stability and for supporting preventive risk management. This document presents an overview of the problem and briefly summarises dynamic testing and VBI monitoring strategies. Strengths, limitations, and open challenges are critically discussed, highlighting the need for continuous, objective, and scalable monitoring protocols.

Analysis of dynamic vibration isolation performance of bell plate-compressed magnetorheological fluid mount

Wei, Lingyun — 2026-04-22T00:00:00Z

Vibroengineering Procedia, Vol. 61, 2026, p. 45-50.
Lingyun Wei, Zhihong Lin
To address the issues of insufficient low-frequency damping and high-frequency stiffening in magnetorheological mount systems, this paper proposes a novel mount structure combining a bell plate with a squeeze model. Through establishing a lumped parameter model, conducting magnetic field simulations using Ansys, and integrating dynamic characteristic analysis, the study concludes that: 1) The bell plate structure significantly reduces high-frequency dynamic stiffness by 35.89 %, effectively suppressing high-frequency stiffening; 2) The squeeze channel markedly enhances low-frequency dynamic stiffness and loss angle, thereby resolving the issues of insufficient low-frequency damping and stiffness.

Design of a new type of vibrating screen with adjustable multiple vibration parameters

Meng, Lingchao — 2026-04-22T00:00:00Z

Vibroengineering Procedia, Vol. 61, 2026, p. 11-16.
Lingchao Meng, Liao Wu, Yufeng Du, Jianhui Shi, Zhenqian Wang
In response to the drawbacks of existing vibrating screens, such as fixed vibration parameters, lack of adjustability, and poor adaptability, this study proposes a new type of vibrating screen with multiple adjustable vibration parameters. By modifying the dimensions of the rubber springs, the amplitude can be adjusted; by increasing or decreasing the number of components such as side plates, the screening width can be adjusted; by adding spacer blocks to the frame, the inclination angle of the screen surface can be adjusted; and by altering the installation position of the vibration motors, the vibration direction angle can be adjusted. This new vibrating screen features a simple and reliable structure, is capable of adapting to different working conditions, and provides a technical reference for innovative designs of vibrating screens.

Bridge health monitoring, structural assessment and dynamic response with remote controls

Bacha, Muhammad Ziad — 2026-04-22T00:00:00Z

Vibroengineering Procedia, Vol. 61, 2026, p. 33-38.
Muhammad Ziad Bacha, Mario Lucio Puppio, Giorgio Serra, Mauro Sassu
An overview of the main recent techniques of Bridge Health Monitoring (BHM) is presented, addressing the use of remote controls. The data coming from satellite measurements, together with travelling cars can be matched and elaborated with the help of machine learning strategies. The data can be interpreted with a view to obtaining information for a deeper investigation into the integrity or serviceability of the bridge. A brief discussion on key gaps and perspectives is finally presented.

Bridge health monitoring, structural assessment and dynamic response: overview and perspectives

Bacha, Muhammad Ziad — 2026-04-22T00:00:00Z

Vibroengineering Procedia, Vol. 61, 2026, p. 39-44.
Muhammad Ziad Bacha, Mario Lucio Puppio, Giorgio Serra, Mauro Sassu
An overview of the main recent techniques of Bridge Health Monitoring (BHM) is here presented. The use of vibrations induced by artificial or natural loads is investigated in terms of review of State-of-Art, together with ordinary (i.e. traffic, wind) or extreme events (i.e. seism, impact). The data can be interpreted by direct modelling or by machine learning routines in order to obtain advertises to a deeper investigation on integrity or serviceability of the bridge. A brief discussion on key gaps and perspectives is finally presented.

Acceleration-driven cam profile synthesis for a cam-type vibration exciter with an elastically coupled oscillating mass

Korendiy, Vitaliy — 2026-04-22T00:00:00Z

Vibroengineering Procedia, Vol. 61, 2026, p. 17-25.
Vitaliy Korendiy, Vladyslav Kyrychuk, Inha Svidrak, Oleh Kotsiumbas, Roman Pelo, Vasyl Brytkovskyi
This paper addresses the inverse synthesis of a disk-cam mechanism used as a cam-type vibration exciter with an elastically coupled oscillating mass. The primary aim is to determine the cam geometry directly from a prescribed acceleration program of the working body. The mechanism is modelled as an in-line translating flat-faced follower driven by a rotating cam and coupled to the oscillating mass through a spring, while a return spring provides force closure. The cam profile is obtained as the envelope of follower-face lines, yielding closed-form parametric equations for the working profile as well as analytical expressions for pressure angle and curvature radius. An acceleration-driven synthesis chain is formulated, where the required follower motion is computed from an inverse elastic model (algebraic for undamped coupling). Design inequalities for the base-circle radius are proposed to satisfy pressure-angle limits and prevent undercutting. A near vibro-impact case study is simulated in Wolfram Mathematica. In contrast to direct kinematic studies of predefined excitation mechanisms, the present work solves an inverse design problem in which the disk-cam profile is synthesized from a prescribed acceleration law of an elastically coupled oscillating mass. The practical outcome is an explicit analytical link between the target output acceleration, follower motion, admissible base-circle radius, pressure angle, and curvature constraints.

Modal characteristics analysis of steering gear synchronous belt under pre-tension based on Abaqus

Du, Xiaofei — 2026-04-22T00:00:00Z

Vibroengineering Procedia, Vol. 61, 2026, p. 86-91.
Xiaofei Du, Yifen Liu
The synchronous belt is a key transmission component in automotive steering gears, and its dynamic characteristics significantly impact the NVH (Noise, Vibration, and Harshness) performance of the steering system. To investigate the vibration characteristics of the synchronous belt under pre-tension, this study takes the steering gear synchronous belt as the research object. A three-dimensional finite element model of the synchronous belt-pulley system, considering its layered structure, is established. Pre-tension is applied using the displacement loading method, and prestressed modal simulation analysis is conducted. The results show that the system’s low-order modes are primarily characterized by overall vertical bending and torsion, while medium- and high-order modes exhibit combined mode shapes and localized vibration features. When the pre-tension displacement increases from 2 mm to 4 mm, the first-order natural frequency rises from 340.69 Hz to 464.88 Hz, but the impact on the mode shape morphology of the synchronous belt is minimal. The relative error between the simulation and experimental results for the first six natural frequencies is less than 1 %, verifying the accuracy of the established model.

Parameter characteristics of single crystal silicon solar cell model based on MATLAB

Zhang, Peng — 2026-04-22T00:00:00Z

Vibroengineering Procedia, Vol. 61, 2026, p. 178-184.
Peng Zhang, Qinxian Zheng, Jiale Dou
Traditional photovoltaic models are difficult to accurately characterize the relationship between maximum power and environmental and electrical parameters due to their strong nonlinearity and complex solutions. This study, based on a single-diode model and combined with standard data, proposes a multi-parameter dynamic coupling model that integrates irradiance, temperature, and shunt resistance. The accuracy of the model has been significantly improved, with current error less than ±0.4 % and power error less than ±1 %. It effectively clarifies the impact of multiple factors on maximum power and provides support for the optimized design of large-scale photovoltaic systems.

Monitoring and control technologies for the full-process construction of a long-span cable-stayed bridge

Yang, Zhentian — 2026-04-22T00:00:00Z

Vibroengineering Procedia, Vol. 61, 2026, p. 158-165.
Zhentian Yang, Xiaotang Wang, Wanjing Fu
This study focuses on a double-tower, double-plane prestressed concrete cable-stayed bridge with a span arrangement of 75+130+365+130+75 m. A full-bridge finite element model was developed using Midas Civil, and a monitoring system was established to track main girder alignment, cable forces, and structural stresses. A phased control and monitoring strategy is implemented: alignment control is prioritized during the cantilever casting stage, while cable force and stress control take precedence during the closure stage. Monitoring results indicate that the alignment of the completed bridge's main girder is smooth, with cable force deviations controlled within 10 %, and stresses in both the main girder and pylons remaining within safe limits. This study integrates dynamic control and monitoring strategies, offering practical references for the construction control of similar bridges.

Experimental investigation of vibration and structure-borne noise in integrated railway station buildings

Liao, Zhihong — 2026-04-22T00:00:00Z

Vibroengineering Procedia, Vol. 61, 2026, p. 99-107.
Zhihong Liao
This paper systematically studies the characteristics of building vibration and structural noise caused by train operation in view of the vibration and noise problems specific to the railway canopy complex in the integrated development of stations and cities through field measurement. The results show that the vibration energy of the floor slab is concentrated in the medium and low frequency band of 20-80 Hz and directly leads to the main peak of indoor noise in the 40-80 Hz band, with significant coherence between the two, confirming that the “vibration-sound” coupling mechanism is the main source of noise; Interior decoration can effectively improve the acoustic environment quality by reducing the reverberation time. This study reveals the intrinsic connection between vibration and noise and demonstrates that “vibration control of sound” is the fundamental approach to addressing such problems. The research results can provide key theoretical basis and engineering guidance for the optimal design and environmental control of the superstructure.

An inertia channel design method for a hydraulic damper specifically used in high-speed railways

Guo, Jianqiang — 2026-04-22T00:00:00Z

Vibroengineering Procedia, Vol. 61, 2026, p. 108-114.
Jianqiang Guo, Yu Cao, Xinying Wang, Shuang Wang, Yan Hu
This paper presents an inertia channel design methodology for a hydraulic damper dedicated to high-speed rail applications. By theoretically analyzing how dimensional parameters of the inertia channel influence the damping force of the hydraulic mount, the calculation methods for both friction losses and local losses are elaborated in detail. Integrating specific design targets, the required inertia-channel dimensions are derived. The study demonstrates that the proposed approach can markedly accelerate the design process of hydraulic dampers and substantially cut research-and-development costs.

Research on negative ion-functional inorganic artificial stone

Lei, Chi — 2026-04-22T00:00:00Z

Vibroengineering Procedia, Vol. 61, 2026, p. 166-171.
Chi Lei, Haijun Xu, Zhiguo Zhou, Hesong Hu, Xiaopeng Wu, Zhijie Zhang, Mingfeng Zhong
In architectural decoration, inorganic artificial stone has become a widely used material. However, it suffers from limited surface performance and functional simplicity. In this study, tourmaline was modified to enhance its negative-ion release capacity. The modified negative ion powder was used as a filler to prepare a negative ion-type UV curable coating (UVCC), which was then applied to the surface of artificial stone to obtain a negative ion-functional inorganic artificial stone. The results show that when 30 % by mass of CeO2 is added to 1200-mesh tourmaline powder, the negative ion release capacity of the composite powder increases from 197 ions/cm3 to 586 ions/cm3. After heat treatment at 900 ℃ for 1 hour, the negative ion release capacity of the composite powder further rises to 828 ions/cm3. When 15 % of the modified negative ion powder is incorporated into the basic UVCC formula, the prepared negative ion-type UVCC coating enables the artificial stone to achieve a negative ion release capacity of over 500 ions/cm3, with a coating gloss higher than 90°, a hardness of 4 H, and an adhesion of grade 1. This work successfully improves both surface properties and health functionality, broadening the application potential of inorganic artificial stone.

Sensitivity of SDOF steel-plate response to equivalent pressure-time histories for vented deflagration loads

Pinna, Francesco — 2026-04-22T00:00:00Z

Vibroengineering Procedia, Vol. 61, 2026, p. 26-32.
Francesco Pinna, Marco Zucca, Marco Simoncelli
This paper investigates how the assumed pressure-time shape for vented dust deflagrations affects the predicted dynamic response of thin steel plates using a bilinear SDOF model with Cowper-Symonds strain-rate effects. Five peak/impulse-matched, peak-aligned equivalent load laws triangular, right-triangle, reversed Friedlander, double reversed Friedlander, and a hybrid ramp and tail are compared against a CFD-validated reference trace. Results quantify sensitivity of mid-span deflection and peak demand to rise/decay assumptions, identifying when impulse matching is sufficient and when rise time and post-peak tail must be modeled explicitly.

Smartphone-based assessment of road surface roughness using accelerometer data and GIS mapping

Ahmed, Imad UD Din — 2026-04-22T00:00:00Z

Vibroengineering Procedia, Vol. 61, 2026, p. 115-122.
Imad UD Din Ahmed
This research demonstrates a simple and economical way to assess road pavement conditions through any common smartphone. The phone was safely mounted inside a vehicle and sensor readings had been recorded during vehicle travel along different road segments. The vertical movement had been computed from the phone’s accelerometer and its location had been monitored through GPS. These two measurements made it feasible to predict pavement conditions without access to expensive instruments. As a data observation tool, a python script calculated Roughness Index (RI) based on vertical acceleration's root mean square (RMS) in short time windows. The output RI measures were categorized into three groups: smooth, moderate, and rough. The data were represented in green, yellow, or red dots onto a map and represented road quality well along the corridor. To better measure pavement condition, the campus road network was disaggregated into distinct sections based on natural corridor conditions such as intersections, curves, and direction changes. Breaking it down in this way enabled each section to be studied independently. The data showed strong variation between sections. Road segments near entrances and access points had repeatedly high Roughness Index (RI) values, indicating surface deterioration, patching, and unevenness. Straight internal segments and long corridors, on the other hand, had low RI values, which meant relatively smooth and well-maintenance pavement. This section-by-section analysis pinpointed areas in the campus network in need of maintenance and highlighted conditions based on pavement usage and location.