A5101724677- Electromagnetic Effects on Materials
- Numerical methods in engineering
- Geotechnical Engineering and Underground Structures
- Aluminum Alloys Composites Properties
- Electrocatalysts for Energy Conversion
- Fuel Cells and Related Materials
- Vibration and Dynamic Analysis
- Thermal properties of materials
- Railway Engineering and Dynamics
- Microstructure and mechanical properties
- Ultrasonics and Acoustic Wave Propagation
- Advanced Thermoelectric Materials and Devices
- Acoustic Wave Phenomena Research
- Advanced Welding Techniques Analysis
- Wave and Wind Energy Systems
- Microbial Inactivation Methods
- Composite Material Mechanics
- Advanced Battery Technologies Research
- Electrodeposition and Electroless Coatings
- Manufacturing Process and Optimization
- Structural Integrity and Reliability Analysis
- Metal and Thin Film Mechanics
- Electromagnetic Scattering and Analysis
- Microfluidic and Bio-sensing Technologies
- Laser and Thermal Forming Techniques
Wuhan University of Technology
2022-2024
Ji Hua Laboratory
2022
Taiyuan University of Science and Technology
2015-2021
Nanjing University of Aeronautics and Astronautics
2014-2019
University of Minnesota
2016
Griffith University
2007-2009
Shin Ansan University
2009
Shanghai Jiao Tong University
2001
This paper studied the Co–Cr3C2 composite coatings on nickel-based super alloy GH4169 deposited by pulse reverse jet electrodeposition in conjunction with ultrasonic vibration. The substrates were first annealed at 500°C for 20 min to eliminate internal stress, and then surface was activated chemically. activation procedure interval time investigated. results showed that Cr3C2 particle contents, microhardness, wear resistance of significantly improved, while roughness coefficient friction...
Abstract The effect of underwater radiated noise (URN) pollution (produced by merchant ships) on marine ecology has become a topic extreme concern for both the academic community and general public. This paper summarises some research results modelling about shipping published over several decades, which comprises significance low-frequency ambient noise, source levels (SL), empirical models measurement standards noise. In short, we try to present an overall outline ocean related research.
Summary Thermal stress induced by an uneven temperature field and mismatched thermal expansion is known to be a dominating factor in the debonding mechanism that threatens reliability ultimately leads failure thermoelectric (TE) composites. Accordingly, we analyse distributions TE composite presence of elliptic inhomogeneity embedded surrounding matrix material. Using complex variable methods, obtain closed-form representations thermal–electric thermal–elastic fields find around reduced...
Anechoic tiles can significantly reduce the echo intensity of underwater vehicles, thereby increasing difficulty detecting such vehicles. However, computational efficiency conventional methods as finite element method (FEM) and boundary (BEM) has its limitations. A fast hybrid for modeling acoustic scattering from vehicles with anechoic periodic internal cavities, is developed by combining Kirchhoff approximation (KA) FEM. The accuracy rapidity KA were validated According to actual...
In this paper, Cu/Al laminated composite was prepared by adopting the pulse current-assisted rolling method, and microstructure mechanical properties of material were investigated. The results showed that with pulsed current significantly strengthened. interface found without intermetallic phase, its bonding mode mainly combined. number reticulated ridges increased at shear interface. small cracks on copper surface firmly embedded in aluminum metal. There obvious folds embedding. structural...
Due to the complexity of both material composition and structure catalyst layer (CL) used in proton-exchange membrane fuel cell (PEMFC), conjugated heat mass transfer as well electrochemical processes simultaneously occur through CL. In this study, a microstructure model CL was first reconstructed using images acquired by Nano-computed tomography (Nano-CT) real sample Then, multiphysics dynamic distribution (MPDD) simulation, which is inherently multiscale approach made combination...
Abstract Bacteria contaminated liquid food and water, along with the harmful byproducts from chemical disinfection methods, raise concerns to public health. This article investigated inactivation of bacteria in water using pilot‐scale concentrated high intensity electric field (CHIEF) system. By generating a strong alternate small region reactor, pilot CHIEF system was able inactivate microbes at continuous operation. Compared other used relatively less energy density decontaminate required...
The stress neutral layer offset is analyzed by theoretical and numerical calculation methods. In traditional straightening theory, the was consistent with geometric central layer. However, there a phenomenon that has some This very important factor for improving precision of force. formula obtained method change law given method. theory provides basis establishing model force precisely.
In this paper, scaled boundary finite-element method (SBFEM) is extended to study wave interaction with two adjacent rectangular cylinders. addition the advantages in accurate and efficient representation of singularities unbounded domains, modified SBFEM shows distinct capability dealing diffraction including multiple structure interactions. Comparisons runup forces on each cylinder offshore caissons traditional panel demonstrate a high accuracy achieved excellent computational efficiency....
The scaled boundary finite element method (SBFEM), a novel semi-analytical mathematical method, is modified to solve the water wave interaction with an elliptic cylinder. By introducing virtual circular cylinder surrounding cylinder, whole fluid domain divided into one unbounded subdomain and several bounded subdomains. corresponding value problems in domains are solved by SBFEM semi-analytically. Comparisons previous numerical solutions demonstrate excellent computational accuracy...
Abstract The effect of pulse current assisted rolling on the micro-hardness and wear properties T2 copper sheet was studied. with measured, hardness values at different deformation rates were obtained. performance rolled tested by friction tester. results show that compared traditional cold rolling, increase rate, increased after an initial decrease. reaches minimum value((82.25 ± 2.5)HV0.1) when rate 65%. specific reached maximum(0.00176 mm 3 /N · m) has a smaller using oxygen element...
Poisson's equation is very important in electrostatics, mechanical engineering and theoretical physics. In this paper, a novel semi-analytical mathematical method, namely scaled boundary finite-element method (SBFEM), applied to solve Poisson’s with Dirichlet Neumann conditions bounded domain. The SBFEM weakens the governing differential circumferential direction solves weakened analytically radial direction, combining advantages of boundary-element method. Three examples are calculated...
In this paper, the hydroelastic response of a circular plate excited by plane incident waves is studied using scaled boundary finite-element method (SBFEM), novel semi-analytical approach with combined advantages both and boundary-element methods. The governing sixth-order partial differential equation decomposed into three Helmholtz-type equations solved semi-analytically matching conditions at edge plate. Discretising only circumference plate, current SBFEM model exhibits excellent...
In this paper, the scaled boundary finite-element method (SBFEM) proposed for interaction of wave and circular cylinder [Tao et al, 2007] is modified applied to diffraction by a vertical square caisson. By introducing virtual surrounding caisson, whole fluid domain divided into one unbounded subdomain four bounded subdomins. The corresponding value problems in domains are solved SBFEM using different base solutions. Comparisons previous BEM solutions demonstrate excellent computation...
Based on the finite element method, this paper first discusses sound absorption characteristics of acoustic materials with a cavity structure backed by air, and then takes internal material as research object, considering waves different frequencies incident angles. The maximum coefficient is used objective function to optimize design material. calculation results show that performance optimized has been significantly improved.
The problem of a piezoelectric screw dislocation emitted from blunt crack is dealt with in this paper. For an arbitrary distribution the residual dislocation, series-form solutions are derived. results show that force acting on decreases value dielectric constant within increasing. And increase helps emission effectively.
The scaled boundary finite-element method (SBFEM) is a novel semi-analytical approach, with the combined advantages of both and boundary-element methods. basic idea behind SBFEM to discretize surface by FEM transform governing partial differential equations ordinary radial parameter. equation then solved analytically. It has inherent advantage for solving problems in unbounded medium discretization interface only. In this paper, applied solve wave diffraction circular cylinder. final matrix...