A5100402005- Tribology and Lubrication Engineering
- Hydraulic and Pneumatic Systems
- Gear and Bearing Dynamics Analysis
- Engineering Structural Analysis Methods
- Mechanical stress and fatigue analysis
- Structural Load-Bearing Analysis
- Adhesion, Friction, and Surface Interactions
- Structural Health Monitoring Techniques
- Structural Integrity and Reliability Analysis
- Cellular and Composite Structures
- Concrete Corrosion and Durability
- Advanced Materials and Mechanics
- Transportation Safety and Impact Analysis
- Structural Behavior of Reinforced Concrete
- Dynamics and Control of Mechanical Systems
- Structural Response to Dynamic Loads
- Cavitation Phenomena in Pumps
- Mechanical Circulatory Support Devices
- Robot Manipulation and Learning
- Synthesis and properties of polymers
- Advanced Measurement and Metrology Techniques
- Industrial Technology and Control Systems
- Seismic Performance and Analysis
- Structural Analysis and Optimization
- Mechanical Engineering and Vibrations Research
Jiangsu University of Technology
2019-2025
Fuzhou University
2024
Tokyo Metropolitan University
2023-2024
Osaka Metropolitan University
2022-2024
Beijing Institute of Technology
2024
Northwestern Polytechnical University
2024
Xi'an Polytechnic University
2024
Nanjing University of Science and Technology
2014-2023
Jinan University
2022
Hong Kong Polytechnic University
2019-2022
Abstract This paper presents a novel hybrid auxetic structure with enhanced mechanical properties, combining the re-entrant and double-arrowhead structures, based on structural stretching-dominated deformation mechanism. The unit cell of developed comprises an external quadrilateral frame internal arrowhead part. theoretical analysis model for predicting its in-plane properties in two principal directions is presented verified by both numerical simulations experimental measurements. On this...
As a representative of multi-functional engineering machinery, the excavator is irreplaceable in field construction. To autonomously control bucket, it essential to position bucket hydraulic cylinder. consequence problem tracking spawned from external disturbance and other factors self-mining servo system excavators, strategy sliding mode backstepping based on particle swarm optimization algorithm neural network observer (PSO-NNDO-SMBC) was recommended accordingly. Meanwhile, complex...
Abstract The frequent or occasional impact loads pose serious threats to the service safety of conventional concrete structures in tunnel. In this paper, a novel three-dimensional mesoscopic model steel fiber reinforced (SFRC) is constructed by discrete element method. encompasses matrix, aggregate, interfacial transition zone and fibers, taking into account random shape coarse aggregate stochastic distribution fibers. It captures microscopic-level interactions among matrix. Subsequently,...
Abstract In recent years, high-strength bolts with friction-type joints have been lengthened to withstand increased traffic load. However, increase in the joint length, force able be resisted by bolted has decreased owing uneven distribution of within joint. addition, proximity secondary members restricted allowable size splice plates. It is therefore necessary reduce length while maintaining its design strength. this study, interference fit were assembled at both ends a form hybrid joint,...
In this paper, the nonlinear dynamic response of deep groove ball bearings with clearance was studied numerically. The imperfect connections raceways and rolling balls were established by contact elements. order to describe characteristics accurately, a hysteresis damping coefficient introduced into Hertz model, which represented dissipative term during contact–impact process. tangential force bodies obtained based on modified Coulomb friction model. Then, analysis model built. Meanwhile,...
Purpose The purpose of this study is to investigate the influence groove shape on hydrodynamic characteristics a journal bearing. Design/methodology/approach computational fluid dynamics model also takes into account cavitation phenomena and thermal effect, which can illustrate lubrication performance Findings simulations bearing with different shapes are conducted under operation conditions. Originality/value Based numerical analysis, suggestions presented for selection be used design...
Purpose The purpose of this study is to investigate the hydrodynamic characteristics journal bearings in a high-speed and heavy-load press system by considering thermal influence cavitation. Design/methodology/approach A proper effectual computational method presented for steady-state analysis fluid interaction rotor-bearing combining dynamics techniques. Findings influences eccentricity ratio, rotational speed oil-film thickness on behavior bearing are studied. Originality/value can be used...
The thermal deformations of a press actuator are the major contributor error. In this paper, in order to estimate error machine, calculation models using finite element method. temperature filed distribution and errors machine steady state simulated under maximum loading operating condition. results simulation can provide foundation for optimization design compensation.
<p>Rivet joints are widely applied in the connections of steel bridges prior to 1950 owing their tightness and strength. Some rivets become loosened or corroded after repeated loading long- term usage. Previous studies indicate that replacing riveted with a high-strength bolt achieve friction may be best approach for repairing joint. However, long joint, which has an uneven load distribution, removal individual overload other rivets. This study focuses on at bottom flange actual...
Abstract When the rotor is rotating at high speed, ball bearing stiffness exhibits strong nonlinear characteristics. This paper primarily investigates influence of different speeds, axial loads, and other factors on angular contact stiffness. To address inconvenience simultaneously simulating dynamic temperature fields deformation results using ANSYS software, a novel coupling method proposed to achieve simulation that closely resemble actual working conditions. By utilizing MATLAB script...
<title>Abstract</title> Long slip-critical bolted joints are extensively used in steel- bridge construction to accommodate increasing traffic loads and optimise steel components. However, as the joint length increases, challenges arise owing interference with secondary members, uneven bolt force distribution leading premature failure, reduced serviceability limit strength. Existing design codes incorporate reduction factors based on address these issues. This study proposes a hybrid that...
In this work, the hydrodynamic characteristics of spiral groove bearing in centrifugal rotary blood pump is investigated for cases with different structural parameters. The simulation model proposed based on CFD technology and effectiveness demonstrated by published data. Then, pressure, load carrying capacity friction torque are calculated pressure distribution analyzed. It found that parameters would lead to complex film also changes at same time. Moreover, deep analysis conducted...
<p>Before 1950, steel bridges were basically connected by rivets. Most of the bridge has been replaced due to aging or corrosion. However, many rivet are still being in service; some rivets might be corroded and loosen paint coating's deterioration. The riveted repair replacing with high-strength bolts for friction connection. slip coefficient joint surfaces red lead treatment is not specified. In this study, specimens cut out from a 90-year-old bridge's section evaluated surface's...