A5017361916- Tribology and Lubrication Engineering
- Hydraulic and Pneumatic Systems
- Gear and Bearing Dynamics Analysis
- Seismic Performance and Analysis
- Lubricants and Their Additives
- Geotechnical Engineering and Underground Structures
- Advanced machining processes and optimization
- Structural Engineering and Vibration Analysis
- Control Systems in Engineering
- Structural Health Monitoring Techniques
- Advanced Cellulose Research Studies
- Vibration and Dynamic Analysis
- Civil and Geotechnical Engineering Research
- Structural Response to Dynamic Loads
- Pickering emulsions and particle stabilization
- Tribology and Wear Analysis
- Seismic Waves and Analysis
- Iterative Learning Control Systems
- Advanced Decision-Making Techniques
- Evaluation Methods in Various Fields
- Vehicle License Plate Recognition
- Infrastructure Maintenance and Monitoring
- Concrete Corrosion and Durability
- Hydrology and Drought Analysis
- Acoustic Wave Phenomena Research
Xinjiang Agricultural University
2024-2025
Qiqihar University
2022-2025
Beijing Chest Hospital
2024
Capital Medical University
2024
Shanghai Tunnel Engineering Rail Transit Design & Research Institute
2022-2024
Beijing Jiaotong University
2012-2024
East–West Center
2023
Seismological Bureau of Shanghai
2020
China Earthquake Administration
2014-2017
The University of Texas at Austin
2016
The expressions of hydrodynamic pressure based on the radiation wave theory are too complex to be conveniently utilized in engineering applications; therefore, a simplified extraction that is accurate and concise for calculating effect deepwater bridge piers highly desirable seismic analyses. With further comparison between elastic vibration rigid motion cylindrical submerged water, can approximately acquired terms added mass caused by linear theory. A formula proposed elaborate data...
Purpose The purpose of this study is to investigate the influence rotational speed on oil film stability hydrostatic rotary table having double rectangular pads. evaluated based stiffness under constant load condition and displacement response amplitude disturbance condition. Design/methodology/approach theoretical equations cavity are deduced such as stiffness, damping dynamic equations. A simulation model developed analyze relationship among temperature, pressure fields stability....
Abstract During the processing of heavy machine tools, due to effect eccentric load, oil film thickness changes, which directly affects lubrication performance bearing. Therefore, this study takes tiltable double rectangular pad hydrostatic thrust bearing as research object and explores its dynamic characteristics. The involves analysis displacement response under loading conditions at different offset distances, loads sudden loads. Through analysis, damping coefficient stiffness each cavity...
ABSTRACT When the hydrostatic thrust bearing is machining parts, machined parts are easily disturbed by external factors and deviate from centre of workbench so that in state eccentric load. In order to explore lubrication characteristics bearings under load conditions, with 12 tilting oil pads taken as research object this paper. Based on tribology principle theory, flow equation, capacity equation film thickness double rectangular cavity derived working structural parameters bearing. The...
This paper proposes a data-driven damage detection method based on fixed moving principal component analysis (FMPCA) to analyze structural dynamic responses and monitor the bridge operational condition occurrence. The indices components (PCs) eigenvalues can be calculated continuously by applying window. length of window is determined using new criterion convergent spectrum cumulative contribution ratio. Numerical simulations experimental tests in laboratory beam models subjected stochastic...
Purpose This paper aims to study the influence of cylindrical texture parameters on lubrication performance static and dynamic pressure thrust bearings (hereinafter referred as bearings) optimize their using multiobjective optimization. Design/methodology/approach The was studied based modified Reynolds equation. objective functions are predicted through BP neural network, were optimized improved ant lion algorithm (MOALA). Findings Compared with smooth surface, introduction can improve...
Purpose The purpose of this paper is to describe a simulation and experimental research concerning the effect recess depth on lubrication performance hydrostatic thrust bearing by constant rate flow. Design/methodology/approach computational fluid dynamics finite volume method have been used compute characteristics an annular with different depths. performances are oil pressure, temperature film velocity. has optimized. A test rig established for testing pressure field structure after...
The maximum seismic response of curved bridge is significantly related to the input angle designated earthquake. Owing structure irregularities, reactions result from interaction between moment and torsion forces. Based on solving excited by a one-way earthquake input, uniform expression unfavorable was derived, corresponding determined. Considering orthotropic skewed dual-directional manners, most angles for two cases were also respectively. Furthermore, series finite element models built...
Hydrostatic thrust bearings have been applied in high speed and heavy load machine tools because they provide superior characteristics such as higher positional accuracy, greater stability, lower friction. The energy consumption of the fluid system exceeds 40% total To reduce consumption, it is usually necessary to optimize comprehensive tribological properties multi-pad hydrostatic bearing CNC vertical processing equipment from perspective oil recess structure. Effects structural parameters...