A5101490981- Tunneling and Rock Mechanics
- Rock Mechanics and Modeling
- Drilling and Well Engineering
- Grouting, Rheology, and Soil Mechanics
- Geotechnical Engineering and Analysis
- Dam Engineering and Safety
- Geological Modeling and Analysis
- Landslides and related hazards
- Wind Turbine Control Systems
- Simulation and Modeling Applications
- 3D Printing in Biomedical Research
- Magnetic Bearings and Levitation Dynamics
- HVDC Systems and Fault Protection
- Geotechnical Engineering and Underground Structures
- Advanced machining processes and optimization
- Geotechnical and Geomechanical Engineering
- Advanced Surface Polishing Techniques
- Advanced Algorithms and Applications
- Advanced DC-DC Converters
- BIM and Construction Integration
- Superconducting Materials and Applications
- Advanced Sensor and Control Systems
- Industrial Technology and Control Systems
- 3D Surveying and Cultural Heritage
- Embedded Systems and FPGA Design
Shandong University
2018-2024
Shandong Transportation Research Institute
2019-2024
University at Buffalo, State University of New York
2024
Shandong University of Science and Technology
2023
Shaanxi University of Technology
2020
China XD Group (China)
2009
Precise, rapid, and reliable prediction of rock strength parameters is great significance for underground engineering. This paper presents a method predicting including the Poisson's ratio (P), elastic modulus (E), uniaxial compressive (UCS) based on computer drilling jumbo measurement while (MWD) data. First, distribution characteristics correlation MWD data are studied; second, filtering proposed, which reduces influence operational mechanical factors; finally, an intelligent model...
The fast and accurate classification of surrounding rock mass is the basis for tunnel design construction has significant value in engineering applications. Therefore, this paper proposes a method classifying predicting based on particle swarm optimization (PSO)–least squares support vector machine (LSSVM). premise research that data acquired from digital drilling technology are divided into training group test group; continuously optimizes algorithm least machine, then used verification....
The main control strategy for permanent magnet synchronous generator (PMSG) in wind power system is vector rather than direct torque (DTC) or (DPC). This paper do detail job to analyze the custom PMSG strategy, point out characteristics each current scheme, expatiated on restrictions of side converter control. Based improve efficiency, and maximize speed maximum track (MPPT), a suitable designed. Also simple unit factor (UPF) method implemented capability converter. At last, designed scheme...
Digital drilling tests provide a new means to realise the real-time acquisition of surrounding rock parameters. In situ can more reliable strength quality parameters for rocks compared with indoor experiments. Moreover, it is capable than existing in testing methods, such as point load and cone penetration tests. This paper introduces an independently developed digital test system real triaxial indoors carries out different lithological materials based on this system. The result shows that...
This paper establishes a variable pitch system working force mathematical model by analyzing wind turbine blade stress , and designs its closed-loop PID controllers combined with the actual system, fuzzy adaptive loop control is introduced in position compares simulation torque curves which were produced algorithm traditional process of feathering adjusting power generation used real parameters, shows feasibility superiority Fuzzy algorithm.
To meet the requirements of vibration sensors in spindle measurement systems, a new micro-electromechanical systems (MEMS) silicon piezoresistive accelerometer with slotted eight-beam (SEB) structure was designed and developed.The proposed to improve trade-off between sensitivity natural frequency accelerometer, which is made possible by incorporating slots into eightbeam (EB) structure.To obtain optimal parameters sensor, mechanism slot location size influence performance studied analyzed...
In this paper, we develop a novel constrained adaptive filtering algorithm called recursive least p-power (CRLP) algorithm, which incorporates set of linear constraints into the mean error (LMP) criterion to solve optimization problem directly. Compared with conventional algorithms including square (CLMS), (CRLS) and (CLMP), CRLP can achieve better performance under non- Gaussian noises. Simulation results are presented confirm superior new algorithm.
In order to study the seepage failure mechanism of roadway filling medium consisting cohesive soil under complex hydrogeological conditions, a large-scale triaxial stress-seepage test system was utilized investigate influence kaolin content and loading rate on characteristics medium. Through analysis variation rules sand loss particle size distribution, whole process instability were explored in depth. It is concluded that (1) The can be categorized into three stages: initiation fine clay,...
Abstract The cost management of computer information can make the real estate enterprises form core competitiveness under environment strict control house price. design stage and construction are key stages in whole process control. This paper analyzes method from quality control, quota value engineering concept, seeks optimal solution prior In implementation stage, dynamic based on PDCA cycle is emphasized, change invalid strictly controlled.
In order to study the dynamic Hoek-Brown strength criterion related size effect, impact experiments were carried out on sandstone samples using SHPB loading system with confining pressure. Specimen diameters include 22mm, 40mm, 50mm and 75mm, pressure range is 2-10MPa, strain rate 100-300/s. The results show that 3D compressive of intact rock increases increasing sample size. However, increase size, degree three-dimensional gradually decreases. This in contrast findings under static load....