A5101715502- Advanced Measurement and Metrology Techniques
- High Entropy Alloys Studies
- Advanced machining processes and optimization
- Additive Manufacturing Materials and Processes
- Manufacturing Process and Optimization
- High-Temperature Coating Behaviors
- Concrete Properties and Behavior
- Metal and Thin Film Mechanics
- Innovative concrete reinforcement materials
- Adhesion, Friction, and Surface Interactions
- Titanium Alloys Microstructure and Properties
- Iterative Learning Control Systems
- Combustion and flame dynamics
- Advanced materials and composites
- Concrete and Cement Materials Research
- Hydraulic and Pneumatic Systems
- Tribology and Lubrication Engineering
- Antenna Design and Optimization
- Gear and Bearing Dynamics Analysis
- Digital Transformation in Industry
- Laser and Thermal Forming Techniques
- Radar Systems and Signal Processing
- Smart Grid and Power Systems
- Evaluation and Optimization Models
- Robotic Mechanisms and Dynamics
Beijing University of Technology
2010-2024
Beijing Urban Construction Design & Development Group (China)
2021-2023
Southwest Jiaotong University
2010-2023
Dalian Jiaotong University
2009-2021
Beijing Institute of Aeronautical Materials
2020
Beihang University
2016
PLA 306 Hospital
2007-2011
The selective laser melting (SLM) forming process of 24CrNiMo alloy steel was optimized by orthogonal experiment. density and microstructure the sample were analyzed, parameters as follows: power 300 W, scanning speed 530 mm/s. samples prepared with parameters. relationship between residual stress thermal fatigue effect stress-relieving annealing (SR) on analyzed. found to increase at first then decrease speed. Increasing widened deepened weld. Under window, formability improved...
Product quality in manufacturing is directly related to the reliability, durability and safety of product. can be controlled by building a product control chart pattern recognition model. The complexity temporal sequence data make it difficult extract effective features, for common classifiers play an role each category, thus affecting accuracy recognition. Therefore, this paper proposes feature enhancement processing method that combines Smote algorithm smooth shift processing. This reveals...
The lubricant film of hydrostatic circular pad in the heavy-duty rotary table is affected by roughness, thermal and hydrodynamic effect, which can cut down load-carrying capacity machining accuracy machine tool. In this paper, a coupled energy equation with mean Reynolds based on Christensen’s stochastic model rough surfaces presented to analyze temperature rising, pressure distribution pad. equation, momentum continuity are solved using finite difference method obtain characteristics film....
AbstractAn innovative application of the fiber reinforced engineered cementitious composite (ECC) in thermal insulation wall is presented this paper. Special focuses are paid for purpose eliminating bond failure between structural layer, layer and surface protective enhancing cracking resistance layer. ECC with characteristics low drying shrinkage (LSECC), strain-hardening multiple was used as material wall. The test results show that uniformly distributed steel wires crossing at an...
Purpose The combination of improved PSO (IPSO) algorithm and artificial neural network (ANN) model for intelligent monitoring the bearing performance hydrostatic turntable. Design/methodology/approach This paper proposes an based on IPSO turntables. Findings theoretical proposed in this improves accuracy working static pressure turntable provides a new direction Therefore, research is novel. Originality/value Theoretical novelties: ANN designed to monitor load-bearing intelligently; study...
Based on the flow reactor with rectangle cross-section, this paper studies spray autoignition characteristics of liquid kerosene injected into air crossflow under high temperature and pressure conditions. Millisecond-level injection, millisecond-level photoelectric detection, speed photography record experiment techniques are adopted in research. The operating conditions research as follows: 2.3MPa inlet pressure, 917K temperature, fuel/ momentum ratio 52, Weber number 355. Photoelectric...
Take the general kind of mold's processing for example, paper analyzes mold machining process and workpiece characteristics. Base on mathematical model job shop scheduling system, establishs production unit allocation method, utilizes robustness Genetic Algorithm, proposes idea job-shop algorithm. Especially, gives detail design calculation.
In the present paper, effects of thermal insulation cover curing on rise in temperature concrete, and further mechanical properties concrete are measured experimentally. experiments, polyurethane foam boards 100 mm thickness were used for insulation, three strength grades C30, C50 C80, as samples. Conventional standard curing, two heat methods with a constant 40 °C 60 comparison. The pore structure cement paste subject to different procedures, including was experimentally using mercury...
Abstract It is known that mechanical connections have great influence on the dynamic characteristic of assembly. In existing methods, torsional stiffness robotic joint calculated only considering components system, which largely reduces prediction accuracy stiffness. paper, to predict more accurately, a model proposed influences all existed in system. The normal and tangential contact surface each connection are by combining equilibrium analysis force fractal theory. Then total one can be...
Selective laser melting (SLM) and direct metal deposition (LMD) have demonstrated excellent characteristics in advanced manufacturing. However, there has been limited research on using SLM LMD to fabricate the same material, especially regarding mechanical properties residual stresses. In this study, several 24CrNiMo blocks were prepared methods subjected stress relief annealing (SR). The microstructure, stresses, of investigated compared scanning electron microscopy (SEM), X-ray diffraction...