A5079565146- Rock Mechanics and Modeling
- Geophysical Methods and Applications
- Landslides and related hazards
- Vibration and Dynamic Analysis
- Wind Energy Research and Development
- Composite Structure Analysis and Optimization
- Geotechnical Engineering and Underground Structures
- High-Velocity Impact and Material Behavior
- Drilling and Well Engineering
- Structural Analysis and Optimization
- Tunneling and Rock Mechanics
- Geotechnical and Geomechanical Engineering
- Advanced Fiber Optic Sensors
- Geotechnical Engineering and Analysis
- Vibration Control and Rheological Fluids
- Fuel Cells and Related Materials
- Engineering Applied Research
- Grouting, Rheology, and Soil Mechanics
- Radiative Heat Transfer Studies
- Aeroelasticity and Vibration Control
- Structural Response to Dynamic Loads
- Electrocatalysts for Energy Conversion
- Advanced machining processes and optimization
- Dielectric materials and actuators
- Shape Memory Alloy Transformations
Tongji University
2021-2024
Wenzhou University
2010-2014
ILJIN Group (South Korea)
2013
Chonnam National University
2006-2009
Chonnam National University Hospital
2006-2009
Rockburst disasters occur frequently during deep underground excavation, yet traditional concepts and methods can hardly meet the requirements for support under high geo-stress conditions. Consequently, rockburst control remains challenging in engineering field. In this study, mechanism of excavation-induced was briefly described, it proposed to apply excavation compensation method (ECM) control. Moreover, a field test carried out on Qinling Water Conveyance Tunnel. The following beneficial...
Abstract The complicated geological environment of deep rocks poses new challenges to tunnel and mining engineering. Some thorny disasters such as large deformation soft rock rockburst are becoming more prominent. However, the classic tunnelling methods represented by mine method Austrian generally unsatisfactory in addressing these issues due limited self-stability surrounding mass. Therefore, excavation compensation (ECM) with core active stress has been proposed applied practical...
A novel meta steel with negative Poisson's ratio effect (termed as micro-NPR steel) is developed for rock support in deep underground engineering. It possesses high strength, ductility, and energy absorption characteristics. In this paper, static tension modified dynamic drop hammer tests are performed on material to investigate its mechanical properties first. Then based material, a new generation of anchor cable applied field subjected blasting loads. The results laboratory reveal that the...
This paper describes vibration suppression of the flexible cantilever beams using shunted electromagnetic transducer. The proposed system consists a coil attached on and permanent magnet placed under bottom coil, both ends were connected to parallel resonant RLC shunt circuit. dynamic model beam with damper was theoretically formulated used compare analytic predictions experimental results. damping characteristics investigated by tuning circuit parameters. Also, effect magnetic intensity...
Previous studies have shown that water can reduce the acoustic emission (AE) energy and other parameters during rock failure. However, fracture mechanism of be better reflected by analyzing AE waveform. Therefore, this paper conducted experiments uniaxial compression on sandstone samples various contents collected signals simultaneously. Analyses fast Fourier transform (FFT) Hilbert-Huang (HHT) were performed waveform when sample failed. The results show as content increases, frequency...
The Ionic Polymer-Metal Composites (IPMC) actuator as electro-active polymers is well known for the fast and flexible bending actuation in electric fields. In this paper, IPMC fabricated designed realization of biomimetic flapping motion dragonflies. resonant frequency a wing anisoptera(dragonfly) was calculated by using finite element method experimental response function. Flapping zygoptera(dragonfly) considered structure. results show that structure dragonfly has good performance frequency.
The paper have described the vibration and damping analysis of carbon fiber wind turbine blade with viscoelastic treatment using commercial ANSYS program. system including a layer was attached on inside layer. Firstly, natural frequencies mode shape pure were compared treated modal analysis. There 1mm, 2mm, 3mm thickness finite element model to be constructed. results show little changes in lower first but getting smaller higher modes. Finally, frequency response functions damped undamped...
With the heightened concern for renewable energy because of significant problems, interest on wind has been greatly increased. In this study, 4 kinds RANS turbulence models were compared and discussed based developed analysis model. At first, a numerical model 1kW turbine blade was constructed. following step, Spalart-Allmaras, standard k-ε, RNG k-ε Reynolds Stress candidated comparison. The results show that or is relatively good selection under condition considering accuracy computational...