A5012811482- Railway Engineering and Dynamics
- Structural Engineering and Vibration Analysis
- Geotechnical Engineering and Underground Structures
- Icing and De-icing Technologies
- Civil and Geotechnical Engineering Research
- Vibration and Dynamic Analysis
- Mechanical stress and fatigue analysis
- Seismic Performance and Analysis
- High-Voltage Power Transmission Systems
- Autonomous Vehicle Technology and Safety
- Thermal Analysis in Power Transmission
- Transportation and Mobility Innovations
- Aerodynamics and Fluid Dynamics Research
- Railway Systems and Energy Efficiency
- Traffic control and management
Northeast Electric Power University
2024
Southwest Jiaotong University
2018-2022
Sichuan–Tibet Railway plays a vital role in China's transportation system by connecting Tibet and Central China, whose design construction are extremely difficult due to numerous seismic zones deep valleys along the railway line. This paper systematically presents framework control vibration of T-beam bridges with high-piers using tuned mass dampers (TMDs). Firstly, finite element model widely used high-pier bridge is established reveal its modes subject earthquakes. On this basis, optimal...
A tuned mass damper (TMD) is a widely used vibration reduction measure in bridge engineering, whose design based on the modal property of structure. As consequence, vibrations certain frequencies are reduced, while some other may be amplified according to methodology TMD. This paper systematically investigates influence these dynamic performance running trains subject earthquake loads. Primarily, bridge-based designed TMD (BBD-TMD) introduced. On this basis, detailed train–track–bridge...
Laying ballastless tracks on a long-span railway bridge with main span greater than 300 m is challenge in engineering practice and has aroused significant concerns. Influenced by complicated environmental factors, bridges service deform large amplitudes complex shapes, which may result damage to the track structure threaten running safety ride comfort of trains. In this study, we investigate some typical statics dynamics problems under actual conditions cable-stayed high-speed 400 laying...
This paper presents random dynamic analysis on a high-speed train moving over long-span cable-stayed bridge. In the study, train, slab track, and bridge are regarded as an integrated system, each vehicle is modelled four-wheelset mass-spring-damper system with 10 degrees of freedom (DOFs), rail track slabs Euler-Bernoulli beams supported by spring-damper elements. The model established ANSYS software, based which its frequencies mode shapes exported implemented into dynamics programme...
Wheel hollow wear is a common form of wheel‐surface damage in high‐speed trains, which great concern and potential threat to the service performance safety railway system. At same time, rail corridors railways are extensively straightened through addition bridges. However, only few studies paid attention influence wheel‐profile on train‐track‐bridge dynamic interaction. This paper reports study interactions under new worn wheel profiles. A nonlinear rigid‐flexible coupled model Chinese train...
In Northeast China and the areas along Sichuan-Tibet railway, collision between floating ice piers of railway bridges seriously threatens train operation safety. The safety high-speed running on bridge subject to impact is rarely assessed considering spatial interaction train-track-bridge-ice system. To evaluate ride comfort trains structural stability under ices piers, a train-track-bridge (TTB) dynamic model established. Using refined finite element model, process pier simulated, loads are...
Aiming at widely used high-pier bridges in Sichuan-Tibet Railway, this paper presents an investigation to design and evaluate the seismic vibration reduction effects of several measures, including viscous damper (VD), friction pendulum bearing (FPB), tuned mass (TMD). Primarily, according detailed introduction concerned bridge structure, dynamic models with different (SVR) measures are established. Further, designs for these SVR performed, optimal parameters investigated. On basis, analyzed...
Shrinkage and creep effect (SCE) is unavoidable in construction operation of concrete bridges, which causes bridges deformed further affects the running safety ride comfort high-speed trains. This paper presents a framework to establish train-track-bridge dynamic model considering SCE, analyzes influences SCE on responses coupled system. Firstly, aiming at 32 m-long simply supported box girder are most widely used Chinese railways, established based interaction theory, including three...