Results 21 to 30 of about 355 (181)

Study on the Crack Propagation Behavior and Patterns of High‐Speed Railway Bridges Under High‐Speed Train Loading

Advances in Civil Engineering, Volume 2026, Issue 1, 2026.
This study focuses on simply supported railway box girder bridges with pre‐existing cracks under high‐speed train loading. A vehicle–bridge coupled vibration model is established, and three‐dimensional dynamic stress intensity factors at the crack tip under various loading conditions are obtained using the interaction integral method.
Wei-biao Zhang, Sheng-hui Liu, Yan Wang, Jing Lin, Wen-jie Shi, Shi-ke Hu, Lie-ni Wang, Zi-hao Li, Amir Si Larbi   +8 more
wiley   +1 more source

A Physical‐Data Fusion Approach for Quantitative Identification of Carbody Chattering in Electric Multiple Units (EMUs)

Structural Control and Health Monitoring, Volume 2026, Issue 1, 2026.
Carbody chattering in high‐speed electric multiple units (EMUs), induced by the coupling between bogie hunting motion and the carbody diamond‐shaped mode, severely affects ride comfort and operational safety. Real‐time monitoring of its evolution remains challenging due to the difficulty in accurately distinguishing among the nonchattering, incubation,
Xin Deng, Dao Gong, Jinsong Zhou, Kai Zhou, Zhao Tang, Andrea Del Grosso   +5 more
wiley   +1 more source

Investigation of Main Bearing Fatigue Estimate Sensitivity to Synthetic Turbulence Models Using a Novel Drivetrain Model Implemented in OpenFAST

Wind Energy, Volume 28, Issue 3, March 2025.
ABSTRACT A coupled medium‐fidelity drivetrain model is developed and implemented in OpenFAST for a 10‐MW land‐based reference turbine. The implementation is verified against a fully coupled multibody wind turbine model, including a detailed drivetrain.
Veronica Liverud Krathe, Jason Jonkman, Jakob Gebel, Irene Rivera‐Arreba, Amir R. Nejad, Erin E. Bachynski‐Polić   +5 more
wiley   +1 more source

Review and comparison of selected methods of calculating wheel-rail contact tangential forces on the example of riding stability analysis of a two-axle vehicle

Pojazdy Szynowe
This article presents methods currently used in railway vehicle dynamics simulations (MBS) for calculating wheel-rail contact forces. Simulation models of two-axle vehicle built in Simpack 2023 simulation environment were used to compare the selected ...
Adrian Szeszycki, Karol Bryk, Natalia Stefańska   +2 more
doaj   +1 more source

Influence of Bridge Bearings on Mitigating Nonlinear Seismic Responses of Straddle‐Type Monorail Trains

Structural Control and Health Monitoring, Volume 2025, Issue 1, 2025.
Straddle‐type monorail systems (STMSs) are increasingly adopted as medium‐capacity transit solutions to alleviate urban traffic congestion. However, their operational resilience during earthquakes is challenged by the low lateral stiffness of track beams and single‐column piers, with critical components like bearings and piers vulnerable to ...
Junyong Zhou, Tang Tang, Xiaohui Wang, Cheng Huang, Jianxu Su, Jiang Yi, Jin Guo, Jian Zhang   +7 more
wiley   +1 more source

Model predictive control of a wind turbine modelled in Simpack

Journal of Physics: Conference Series, 2014
Wind turbines (WT) are steadily growing in size to increase their power production, which also causes increasing loads acting on the turbine's components. At the same time large structures, such as the blades and the tower get more flexible. To minimize this impact, the classical control loops for keeping the power production in an optimum state are ...
U Jassmann, J Berroth, D Matzke, R Schelenz, M Reiter, G Jacobs, D Abel   +6 more
openaire   +1 more source

Study on Vibration Control of Wind Turbine With an Optimised Eddy Current Tuned Rolling Cylinder Damper

Structural Control and Health Monitoring, Volume 2025, Issue 1, 2025.
The increasing scale and capacity of wind turbines, driven by advancements in wind power technology, present significant challenges in managing fatigue loads and vibrations. To address these challenges, we have designed an eddy current tuned rolling cylinder damper (ECTRCD) which incorporates eddy current–induced damping into the traditional tuned ...
Zhenqing Liu, Chao Wang, Dongqin Zhang, Zoran Rakicevic   +3 more
wiley   +1 more source

Numerical Analysis of the Dynamic Behavior of the Ballasted Railway Track Under Loading of Trains at Variable Speeds to Improve the Prediction of Dynamic Amplification Factors and Damage to Its Components

Shock and Vibration, Volume 2025, Issue 1, 2025.
This study contributes to the dynamic amplification effects of different speeds of trains on the behavior of the ballasted railway. The damage mechanisms of the main components of ballasted railway tracks were investigated in 3D numerical modeling using the PLAXIS code. Several moving speeds have been tested.
Zoa Ambassa, Jean Chills Amba, Arnab Biswas   +2 more
wiley   +1 more source

Impact of Frog Height Deviations on Dynamic Response of High‐Speed Metro Trains Negotiating Turnouts

Shock and Vibration, Volume 2025, Issue 1, 2025.
Composite frogs inevitably have manufacturing or installation errors, leading to deviations in the height of the frogs, which affects the dynamic performance of trains passing through turnouts. This study focuses on high‐speed metro systems operating at 100 km/h or higher. Based on field‐measured No.
Dongliang Zeng, Shan Jin, Fei Chen, Xiaoyu Hu, Xiuqi Wei, Kaiyu Zeng, Wang Kaiyun, Chang Li, Angelo Marcelo Tusset   +8 more
wiley   +1 more source

Dynamic Performance and Fault Diagnosis of Gear-pair with Reference Circles’ Cracks

机车电传动, 2016
The FE model of the gear, established by finite element software ANSYS, and the dynamic model of gear-pair, established by multi-body dynamic software SIMPACK, were combined to simulate. The gear’s FE model was used to compute the stiffness of the teeth,
FAN Jiafeng, DENG Tiesong, SU Zhaoyi, LI Fuzhong   +3 more
doaj