A5028726413- Tribology and Lubrication Engineering
- Gear and Bearing Dynamics Analysis
- Adhesion, Friction, and Surface Interactions
- Hydraulic and Pneumatic Systems
- Lubricants and Their Additives
- Pulsed Power Technology Applications
- Metal Forming Simulation Techniques
- Electrostatic Discharge in Electronics
- Electromagnetic Launch and Propulsion Technology
- Metallurgy and Material Forming
- Heat transfer and supercritical fluids
- Phase Equilibria and Thermodynamics
- Plasma Diagnostics and Applications
- Magnetic Bearings and Levitation Dynamics
- Advanced Surface Polishing Techniques
- Heat Transfer Mechanisms
- Aerodynamics and Fluid Dynamics Research
- Laser and Thermal Forming Techniques
- Mineral Processing and Grinding
- Gyrotron and Vacuum Electronics Research
- Petroleum Processing and Analysis
- Marine Biology and Environmental Chemistry
- Superconducting Materials and Applications
- High voltage insulation and dielectric phenomena
- Icing and De-icing Technologies
Zhejiang University of Technology
2016-2025
Northeastern University
2025
Hebei University of Technology
2023
China Three Gorges University
2016-2023
Southwest Petroleum University
2022
State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation
2022
China Energy Engineering Corporation (China)
2021
Huazhong University of Science and Technology
2011-2015
State Key Laboratory of Advanced Electromagnetic Engineering and Technology
2013
PLA Electronic Engineering Institute
2012
Innovating seal structures and optimizing size parameters are effective ways to enhance the leakage characteristics of labyrinth seals (LSs). Inspired by ecological fishways with high flow resistance on dam sides, a novel bio-inspired staggered is proposed. The both curved-edged (CELS) straight-edged (SELS) at different tooth-incline angles studied numerically experimentally. influence key geometrical field CELSs investigated, control mechanism LSs revealed via analyzing parameter...
Abstract A novel transient solution model for compliant foil cylindrical gas film seal utilizing supercritical carbon dioxide as the medium, taking mass eccentricity into account, has been established under influence of combined high-speed fluid effects. This study reveals operating mechanism seal, investigates impact on behavior, analyses anti-interference capability external excitation, and further determines structural optimal range. The results show that displays robust capabilities in...
Coal mine scene image recognition plays an important role in safety monitoring and equipment detection. However, traditional methods often depend on manually designed neural network architectures. These models struggle to handle the complex backgrounds, low illumination, diverse objects commonly found coal environments. Manual designs are not only inefficient but also restrict exploration of optimal architectures, resulting subpar performance. To address these challenges, we propose using a...
Electromagnetic forming is a method of high-speed metal workpiece technology that uses electromagnetic force pulses generated from the interaction magnetic flux density and induced eddy current. The main challenge this control current to perform various processes. This paper aimed at overcoming by introducing new sheet based on discretely driven rings. In method, set discrete conducting rings are placed between driving coil enhance shaping process workpiece. By changing number position...
A dry gas seal (DGS) is one of the key basic components natural transmission pipeline compressors, and sealing performance a DGS dealing with complex multi-component different from that conventional nitrogen medium. In this paper, spiral groove compressor in systems taken as research object. The thermal hydrodynamic lubrication model established considering turbulence effect choking effect. Based on finite difference method, temperature pressure distributions steady-state are obtained by...
Recently, a method utilizing pulsed power technology for disintegration of rocks arouses great interest many researchers. In this paper, an improved based on magnetic switch and the results shown that uniform dielectrics like plastic can be broken down in water is presented, feasible mechanism explaining breakdown solid proposed proved experimentally. A high voltage pulse 120 kV, rise time 0.2 μs was used to ignite discharging channel solids. When plasma formed solid, resistance quiet small;...
To study the influence of laser power, scanning speed, and cleaning water content on effect obtain best parameters, this paper conducted a simulation analysis process carried out pulse porcelain insulators experiment to verify. The results show that rate gradually increases as power from 20 W 25 W. As speed 1000 mm/s 2500 mm/s, overlapping decreases, takes lead in increasing then decreasing. appropriate is conducive cleaning; when 0.115 g, efficiency reaches highest value 98.20%. When W,...
In the conventional electromagnetic tube expansion, wall thickness tends to decrease significantly while workpiece is expanded. This paper aimed at introducing a new technique using three-coil bulging with axial compression as an innovative solution for this issue. To validate feasibility of proposed and investigate force distribution along workpiece, COMSOL software used construct detailed finite element analysis model coupling model. Results show that ratio radial forces increases linearly...
Spiral groove dry gas seal (S-DGS), the most widely used DGS in world, encounters problem of high leakage rate and inferior film stability when high-speed machinery equipment, which could not be well solved by optimization geometrical parameters molded line spiral groove. A new type bionic cluster (CS-DGS) is proved to have superior than S-DGS at condition low-pressure numerically. CS-DGS experimentally investigated compared with common order provide evidence for theoretical study. The...
China has abundant shale gas resources with great exploration potential, and stage progress been made in this aspect. The sedimentary environment reservoir characteristics are important aspects of the study on accumulation. Previous studies have mostly carried out from a “qualitative” perspective, but not “quantitative” one. There is lack comparative “marine shales different TOC contents”. This paper takes marine first member Longmaxi Formation (Long 1 Fm) southern Sichuan Basin, Southern...
The film stiffness of dry gas seal must be sufficient to keep stable at high and low speed. A generalized geometric model based on triangles is proposed characterize spiral grooves. mathematical established solved using the finite-difference method obtain steady performance. optimum grooves for maximum opening force are obtained speed, their performance compared with conventional numerically experimentally. pressure flow field simulated reveal mechanism difference. Results show that...
Due to the fact that geometrical structure of tube electromagnetic bulging process with field shaper does not conform axisymmetric property, three-dimensional (3D) model is usually used analyze which complicated and time consuming. Therefore, on basis understanding working principle shaper, a two-dimensional (2D) current constraint proposed in this paper fitted shaper. COMSOL finite element analysis software develop three models for performance comparison, these are: conventional 3D 2D...