A5056023640- Tribology and Lubrication Engineering
- Lubricants and Their Additives
- Adhesion, Friction, and Surface Interactions
- Tribology and Wear Analysis
- Physics of Superconductivity and Magnetism
- Gear and Bearing Dynamics Analysis
- Mechanical stress and fatigue analysis
- Superconducting Materials and Applications
- Advanced Thermoelectric Materials and Devices
- Metal and Thin Film Mechanics
- Rocket and propulsion systems research
- Magnetic Bearings and Levitation Dynamics
- Lattice Boltzmann Simulation Studies
- Particle accelerators and beam dynamics
- Diamond and Carbon-based Materials Research
- Brake Systems and Friction Analysis
- Robotics and Sensor-Based Localization
- Spacecraft and Cryogenic Technologies
- Granular flow and fluidized beds
- Surface Modification and Superhydrophobicity
- Hydraulic and Pneumatic Systems
- Vibration Control and Rheological Fluids
- Ionic liquids properties and applications
- Heat Transfer and Optimization
- Energetic Materials and Combustion
Hefei University of Technology
2018-2024
Xi'an Jiaotong University
2013-2024
Shanghai Chest Hospital
2018-2022
Shanghai Jiao Tong University
2012-2022
Nanjing Tech University
2019
Chongqing University
2011-2012
Institute of Chemical Industry of Forest Products
2009
A superhydrophobic (SHB) surface with an excellent self-cleaning ability is of great significance in both human survival and industrial fields. However, it still a challenge to achieve large-area preparation antiabrasive SHB surfaces mechanical robustness for broader applications. Thus, kind facile coating liquid repellency antiresistance constructed by spraying fluorine-free suspension consisting epoxy resin, hexadecyltrimethoxysilane (HDTMS), silica nanoparticles on glass sheet. The not...
Abstract The formation of tribolayers may play significant influences on fretting wear. At elevated temperature, the adhesion among wear debris and increased diffusion rate facilitate tribolayers. However, intensification oxidation at temperature low in oxides an adverse role. present study aims to investigate role using a γ-TiAl alloy. Scanning electron microscope, energy dispersive spectrometer, Raman transmission microscope nanoindentation were utilized debris, tribolayers, scars. tests...
Abstract There is a consensus in the aerospace field that development of reusable liquid rockets can effectively reduce launch expense. The pursuit long service life and reutilization highly depends on bearing components. However, rolling element bearings (REBs) used existing rocket turbopumps present obvious increasing limitations due to their mechanical contacting mode. For REBs, high rotational speed are two performance indexes mutually restrict each other. To go beyond DN value (the...
The wear-resistant superhydrophobic (SHB) surfaces with excellent water-repellency ability were prepared by constructing a microtextured armor on an aluminum surface. With the assistance of laser-induced microtextures, SHB surface could keep longer and lower friction coefficient even after repeated tests under different loads at speeds. mechanism microtexture-protecting coating is revealed based both theoretical elemental analysis. Additionally, we explore relationship between...
Abstract To reveal nonlinear dynamic rules of low viscosity fluid-lubricated tilting-pad journal bearings (TPJBs), the effects design parameters on center orbits and minimum film thicknesses water-lubricated TPJBs with without static loads are investigated. The hydrodynamic bearing force used in analysis is an approximate analytical solution including turbulence effect. results methods for vibration suppression load capacity improvement give optimal pivot offset clearance ratio that can...
The transient tribo-dynamics and wear model are coupled to study the mixed lubrication-wear behavior during start-up. numerical involves film thickness equation with depth a time-varying coefficient account for impact of lubrication on wear. In this study, evolution performance distribution over time is predicted, acceleration mode, time, external load, lubricant viscosity, start-up predictions evaluated. findings demonstrate that behavior, particularly in analysis effects mode has...
With the application prospect of a new generation liquid rocket engine and status that system safety reliability are weakened by friction wear existing rolling bearings, kind compound bearing for axial balance is proposed in this paper, which combination high-temperature-superconducting hydrodynamic fluid-film bearing. The most important feature lies "superconducting tilting pad" structure. structure its detailed feasible scheme given. static characteristics based on decoupling analytical...
In this study, a novel reciprocating tribometer, in which the frictional pairs were immersed liquid nitrogen directly, was developed to simulate cryogenic fluid lubrication. To eliminate negative influence of extremely low temperature on force sensors, transfer structure force-deformation, consisting cantilever beams and measurement beams, designed specially. It can structural deformations caused by loading friction from zone room-temperature zone. The corresponding principle discussed...
Abstract The frictional performance between impregnated graphite materials and YG-8 cemented carbide is investigated on a self-developed rotating-type tribometer. test configuration plate rotating against the surface. Three types of concave-type textures, including linear grooves, circular dimples isosceles triangular dimples, are fabricated by laser process surfaces to improve tribological properties. environments include dry condition water lubrication. corresponding friction coefficients,...
A kind of superconducting tilting-pad bearing, which is a compound bearing high-T <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">c</sub> superconductor and hydrodynamic fluid film, proposed for the application liquid rocket engine in this paper. Cryogenic fuel engines can be used as cooling lubricating medium at same time. The structure tilting pad realize introduction fluid-film force. Structural features are discussed to satisfy practical...