A5100654123- Railway Engineering and Dynamics
- Hydraulic and Pneumatic Systems
- Structural Engineering and Vibration Analysis
- Advanced Control Systems Optimization
- Seismic Performance and Analysis
- Geotechnical Engineering and Underground Structures
- Real-time simulation and control systems
- Vehicle Dynamics and Control Systems
- Vibration Control and Rheological Fluids
- Fault Detection and Control Systems
- Advanced Algorithms and Applications
- Power Line Inspection Robots
- Structural Health Monitoring Techniques
- Structural Behavior of Reinforced Concrete
- Advanced Sensor and Control Systems
- Fluid Dynamics and Vibration Analysis
- Vibration and Dynamic Analysis
- Civil and Geotechnical Engineering Research
- Wind Energy Research and Development
- Plant Molecular Biology Research
- Masonry and Concrete Structural Analysis
- Space Satellite Systems and Control
- Plant Physiology and Cultivation Studies
- Advanced Control Systems Design
- Nuts composition and effects
Central South University
2019-2024
Wuhan Textile University
2024
Wuhan University
2024
State Grid Corporation of China (China)
2024
University of Lisbon
2023
State University of New York
2021
Chinese Academy of Sciences
2015
Changchun Institute of Optics, Fine Mechanics and Physics
2015
Wuhan University of Technology
2013
Heritage Christian University
2010
Abstract The derailment of a high‐speed train is complex and uncertain dynamic process, especially under running conditions where the index lacks comprehensive experimental validation. This research focuses on elucidating mechanism an earthquake‐induced validating structural response‐based spectrum intensity index. To achieve this, multi‐array shaking table system was utilized to test safety physically replicate process severe earthquake impact. We investigated vibration characteristics...
Abstract This study presents the validation of a dynamic test system to simulate high‐speed train passing bridges under seismic excitation. The comprises scaled models CRH380A and an 11‐span simply supported bridge on shake table array. innovative apparatus combines loading with moving load replicate train‐track‐bridge interaction (TTBI) during earthquakes. It allows investigation various speeds excitations, providing invaluable insights into TTBI. First, detailed similarity design principle...
This study aimed to provide an experimental evaluation method for train's moving safety on a post-earthquake bridge. First, improved real-time hybrid simulation (RTHS) framework was constructed, based utilizing the load superposition algorithm solve train-track-bridge interaction (TTBI) problem. An RTHS test then conducted TTBI The train model tested using shake table and dynamically linked numerical substructure. A seven-span high-speed railway simply supported bridge studied, in which...
CRTS-II slab ballastless track on bridge is a unique system in China high speed railway. The application of longitudinal continuous has obviously changed dynamic characteristics structure. and form complex nonlinear system. To investigate the seismic response railway (HSR) simply supported bridge-track system, models three-span with piers different height are established. By analysis, it found that shear alveolar more prone to be damaged than components, such as piers, girders bearings....
Real-time hybrid simulation (RTHS) is recently applied to study the vibration of vehicle–bridge coupling system, where bridges and vehicle are numerical experimental substructures respectively. Inevitable time delay boundary loading imposed substructure will greatly affect accuracy stability RTHS. To minimize effects, this paper proposes a recursive prediction optimal (RPO) compensator based on control least squares. The RTHS system conducted using MATLAB/Simulink. performance RPO method...
This paper evaluates seismic performance of a three-span high-speed railway (HSR) simply supported bridge-track system equipped with multi-joints rotational friction damper (MRFD) using pseudodynamic hybrid simulation. In simulation, simplified nonlinear model based on the reference is used as numerical substructure. The experimental substructure (RFD) specimen consisting two joints. feedback-force RFD multiplied in different multiples to consider clamping force MRFD more Results cyclic...
The real-time hybrid simulation (RTHS), which combines experiment with numerical simulation, is an effective method to study the dynamic characteristic of high-speed railway train–bridge coupling vibration. In this paper, a simplified virtual RTHS platform vibration developed illustrate test logic and feasibility carrying out physical moving train on bridge in limited laboratory space. accuracy stability are highly dependent time delay caused by experimental loading device. adaptive compound...
This paper reviews experimental methods for testing floating wind turbines. The techniques covered include early-stage and up-to-date approaches such as a porous disc method hybrid model testing. First, the challenges induced by Froude Reynolds similitudes importance of various aerodynamic phenomena are discussed. evaluated based on their cost, versatility, requirements, limitations. work primarily focuses representing loads via physical rotor testing, preliminary classification is proposed...
The accuracy of real-time hybrid simulation (RTHS) is greatly influenced by the inevitable time delay and amplitude error due to control plant dynamics. Several tracking controllers have been implemented improve overall performance, among them, model predictive (MPC) loses its prediction advantage characteristic command calculation RTHS. In this study, an improved controller based on MPC combined with a polynomial-based forward reference (MPC-RP) proposed according principle providing future...
The pulse effect of near-fault ground motion has asevere threat to high-speed railway train running on bridge. Current research generally relies numerical simulation and lacks physical test data. In this paper, a scale indoor bridge is conducted dynamic characteristics train–track–bridge system under pulse-type are explored. the excited by shaking table with lateral inputs motion, pulse-free far-field motion. A corresponding model established validated Then, influence regularities response...
View Video Presentation: https://doi.org/10.2514/6.2021-3103.vid Tether-nets deployed from a chaser spacecraft have been proposed as promising technical solution to capture space debris in recent years. The success of this (usually one-shot) process however depends on the ability perform an optimal launch and closure tether-net, subject uncertainties. Uncertainties are primarily attributed configuration net, inadequacies modeling dynamics inexact sensing state estimation actuation at closing...
Gibberellins (GAs) play a pivotal role in modulating plant growth and development. Glucose–conjugated gibberellins (Glc–GAs), prevalent conjugated form of GAs, regulate intracellular GA levels by the coupling decoupling glucose groups. However, diversity Glc–GAs identified within individual species remains limited, hinting at multitude yet undiscovered gibberellin metabolites. This lacuna poses considerable impediments to research efforts dedicated comprehensively delineating metabolic...