A5058392835- Ultrasonics and Acoustic Wave Propagation
- Structural Health Monitoring Techniques
- Mechanical Behavior of Composites
- Composite Structure Analysis and Optimization
- Composite Material Mechanics
- Geophysical Methods and Applications
- Acoustic Wave Resonator Technologies
- Numerical methods in engineering
- Thermography and Photoacoustic Techniques
- Non-Destructive Testing Techniques
- Advanced Fiber Optic Sensors
- Advanced Sensor and Energy Harvesting Materials
- Innovations in Concrete and Construction Materials
- Chaos-based Image/Signal Encryption
- Advanced Measurement and Detection Methods
- Manufacturing Process and Optimization
- Seismic Imaging and Inversion Techniques
- Nuclear Engineering Thermal-Hydraulics
- Nuclear reactor physics and engineering
- Innovative concrete reinforcement materials
- Structural Load-Bearing Analysis
- Railway Engineering and Dynamics
- Mechanical Engineering and Vibrations Research
- Fluid Dynamics Simulations and Interactions
- 3D Shape Modeling and Analysis
Dalian University of Technology
2016-2025
Sichuan University
2023-2024
China Railway Design Corporation (China)
2024
China University of Petroleum, East China
2024
China Electric Power Research Institute
2024
University of Hong Kong
2023
Zhejiang University
2019-2020
Dalian University
2012-2018
Naval University of Engineering
2002-2015
Hunan University
2010-2014
Impact monitoring technology plays a critical role in ensuring the structural integrity and safety of thin-walled engineering structures service. This paper presents novel hybrid DoA-TDoA method for impact localization on using sensor clusters. The methodology involves placing two clusters structure to capture signals. Subsequently, narrowband Lamb wave signals at specific frequency are extracted from Continuous Wavelet Transform (CWT). Normalized Variance Sequence (NVS) approach is then...
Global Navigation Satellite System (GNSS) positioning technology has been employed in the dynamic monitoring of long-span bridges recent years. However, it difficulties to meet higher accuracy requirements small or medium span bridges, due presence measurement noise from multipath, cycle slips, ionosphere delay, orbital errors, etc. To verify feasibility using current GNSS monitor these a series experiments have carried out on Wilford suspension bridge Nottingham (UK) with and triaxial...
Abstract With the rapid iteration of portable electronics and electric vehicles, developing high-capacity batteries with ultra-fast charging capability has become a holy grail. Here we report rechargeable aluminum-ion capable reaching high specific capacity 200 mAh g −1 . When liquid metal is further used to lower energy barrier from anode, fastest rate 10 4 C (duration 0.35 s reach full capacity) 500% more under high-rate conditions are achieved. Phase boundaries active anode believed...
In the present work, coefficients of thermal expansion (CTEs) unidirectional (UD) fiber-reinforced composites are studied. First, an attempt is made to propose a model predict both longitudinal and transverse CTEs UD by means thermo-elastic mechanics analysis. The proposed supposed be concentric cylinder with transversely isotropic fiber embedded in matrix, it subjected uniform temperature change. Then concise explicit formula offered for each CTE. Finally, some finite element (FE) models...
Since the internal barely visible damage of aircraft composite structures caused by impact is a critical problem, monitoring essential for integrity and reliability structures. This paper presents multi-frequency probabilistic imaging fusion method localizing impacts on To capture signals, network distributed sensors mounted structure. The signals are then processed using continuous wavelet transform (CWT) to extract narrowband Lamb wave signals. time difference arrival (TDOA), key feature...
In this paper, micromechanical modelling and simulation were performed for unidirectional fibre reinforced composites subjected to transverse in-plane shear by finite element method. Representative volume consisting of fibre, matrix interface was established the simulation, considering random distribution. The two dominant damage mechanisms composites, plastic deformation interfacial debonding taken into account in simulation. Periodic boundary conditions applied representative elements....
In order to solve the problem of degradation dynamical properties caused by finite states computer, a new binary stream-cipher algorithm based on dual one-dimensional chaotic maps is proposed in this paper. process generation, we employ parameter one map perturb other map's trajectory lengthen cycle-length trajectory. addition, design nonlinear principle generate pseudo-random bit sequence as key stream. Statistic proprieties show that high randomness.
Woven fabric composite structures are applied in a wide range of industrial applications. Composite vulnerable to damage from working complex conditions and environments, which threatens the safety in-service structure. Damage detection based on Lamb waves is one most promising structural health monitoring (SHM) techniques for materials. In this paper, guided waves, lightweight deep-learning approach proposed identifying damaged regions woven structures. The designed deep neural networks...
Multi-damage identification is an important and challenging task in the research of guide waves-based structural health monitoring. In this paper, a multi-damage method presented using local probability-based diagnostic imaging (PDI) method. The includes path damage judgment stage, stage stage. First, was performed by partition. regions are divided into beside signal paths. difference waves propagation characteristics between cross paths proposed theoretical analysis wave feature....