A5101551059- Tribology and Lubrication Engineering
- Magnetic Bearings and Levitation Dynamics
- ZnO doping and properties
- Corrosion Behavior and Inhibition
- Vehicle emissions and performance
- Gas Sensing Nanomaterials and Sensors
- Electric and Hybrid Vehicle Technologies
- Electric Vehicles and Infrastructure
- Hydraulic and Pneumatic Systems
- Constructed Wetlands for Wastewater Treatment
- Acoustic Wave Resonator Technologies
- Industrial Vision Systems and Defect Detection
- Fluid Dynamics and Vibration Analysis
- Vehicle Noise and Vibration Control
- Structural Response to Dynamic Loads
- GaN-based semiconductor devices and materials
- Hydrogen Storage and Materials
- Wind and Air Flow Studies
- Urban Stormwater Management Solutions
- Gear and Bearing Dynamics Analysis
- Acoustic Wave Phenomena Research
- Rock Mechanics and Modeling
- Adhesion, Friction, and Surface Interactions
- Magnesium Alloys: Properties and Applications
- Lubricants and Their Additives
Institute of Engineering Thermophysics
2016-2024
Chinese Academy of Sciences
2016-2024
University of Chinese Academy of Sciences
2024
Chongqing University
2009-2023
University of Science and Technology of China
2022-2023
A layered rock mass is a special type of geological body. The existence bedding surface may lead to poor cutting effect (over/under-excavation the surrounding rock), falling blocks, or collapse, thereby affecting most constructions in areas with such rocks. Given lack proper quantitative analysis method for damages, construction process tunnels becomes difficult. To address these problems, three types cut blasting models single, double, and four holes are studied this paper. With this,...
Fuel cell vehicles (FCVs) are gaining popularity in heavy-duty transportation applications because of their high efficiency, lack local emissions, and short refueling time. Moreover, cooperative adaptive cruise control (CACC), which plans the longitudinal movements vehicles, is also a potential solution to increase fuel safety, road capacity. In order integrate aforementioned two technologies, this research, homogeneous modular vehicle (MFCV) platoon hierarchically created using...
Purpose The purpose of this study is to investigate the initial corrosion behavior pure Mg, AZ31 and AZ91 alloys in phosphate buffer solution (PBS) characterize features type resistance product layer. Design/methodology/approach scanning electron microscopy, equipped with energy-dispersive spectroscopy, X-ray photoelectron spectroscopy electrochemical impedance have been used as-corroded samples. Besides, Mg 2+ concentration PBSs has determined by inductively coupled plasma atomic emission...
Advances in connected automated technology allow for more efficient driving heavy-duty transportation. By well coordinating the longitudinal movements of multiple vehicles a string, eco-platooning control can significantly improve comfort and fuel economy. Moreover, benefitting from short following distances platoon members, aerodynamic effects are believed to further reduce overall energy consumption applications. In this paper, we develop an aerodynamically aware cooperative adaptive...
The modal vibration of the rotor is main cause excessive aero-engine overall structure. To attenuate under different shapes from perspective energy control, intrinsic physical relationships between and instantaneous vibrational flow transmission characteristics derived general equation motion base on structural intensity method. A dual-rotor-support-casing coupling model subjected to unbalanced forces established by finite element method in this paper. transmission, conversion balance for...
The evolution of morphology, composition, thickness and corrosion resistance the oxide film on pure Sn solder substrate submitted to high-temperature aging in 150 °C dry atmosphere was investigated. results indicate that accelerates dehydration Sn(OH)4 pre-existing native form SnO2 facilitates oxidation fresh substrate, resulting gradual increase surface roughness with prolonging time. However, initially is enhanced then deteriorated an extending Besides, formation mechanisms time were discussed.
Modular fuel cell (MFC) systems, which have multiple stacks that work independently, are becoming increasingly popular in heavy-duty transportation because they more efficient, reliable, and easy to use (plug-and-play). This paper aims at developing a lifespan-conscious energy management strategy (EMS) for modular vehicle (MFCV) enhance the economic performance during whole life cycle of its components. In this work, main decision-making problem is broken down into two minor problems solved...
Vibration control is a permanent and significant issue in all forms of structural dynamic analysis with the consistent objective being to minimize vibration levels. Considering that propagation waves essentially transmission vibrational energy flow (VEF), fundamental requirement, therefore, VEF transmitted from sources sinks then block energy. Structural intensity (SI) method, combining forces velocities assess magnitude directions VEF, alternative classical assessment methods offering...
In this study, we study the application of nonlinear energy sinks (NES) for targeted vibration transfer and absorption in aero-engine casings subjected to shock loads. A simplified single-degree-of-freedom model with an attached NES is characterized understand influence control parameters such as damping stiffness on NES. Using complexification-averaging (CX-A) technique, analyze main dynamic characteristics system, revealing normal modes (NNM) localization phenomenon that enables transfer....
Abstract Aero-engine spindle bearings operate under extreme operating conditions, including high temperatures, speeds, and heavy loads. Thus, the reliability of design is critical to ensuring optimum engine performance. In order assess safety high-speed angular contact ball for an aero-engine subjected axial force overload, tests are conducted using a certain type bearing test rig. The tested at operation speed 17,000 rpm 25,000 N, as well overload conditions with reduced 14,000 maximum...
We report on the growth and fabrication of nonpolar a-plane light emitting diodes with an in-situ SiNx interlayer grown between undoped GaN buffer Si-doped layer. X-ray diffraction shows that crystalline quality layer is greatly improved introduction interlayer. The electrical properties are also improved. For example, electron mobility sheet resistance reduced from high to 31.6 cm2/(V·s) 460 Ω/□ respectively. Owing significant effect interlayer, LEDs realized. Electroluminescence a...