A5101777873- Ultrasonics and Acoustic Wave Propagation
- Structural Health Monitoring Techniques
- Acoustic Wave Resonator Technologies
- Acoustic Wave Phenomena Research
- Geophysical Methods and Applications
- Thermography and Photoacoustic Techniques
- Non-Destructive Testing Techniques
- Metamaterials and Metasurfaces Applications
- Smart Materials for Construction
- Engineering Applied Research
- Microfluidic and Bio-sensing Technologies
- Rock Mechanics and Modeling
- Advanced Fiber Optic Sensors
- Advanced MEMS and NEMS Technologies
- Ship Hydrodynamics and Maneuverability
- Structural Response to Dynamic Loads
- Structural Analysis and Optimization
- Vibration and Dynamic Analysis
- Optical Systems and Laser Technology
- Advanced Sensor and Energy Harvesting Materials
- Optical measurement and interference techniques
- Piezoelectric Actuators and Control
- Vehicle Noise and Vibration Control
- Advanced Antenna and Metasurface Technologies
- Seismic Imaging and Inversion Techniques
Jiangsu University
2016-2025
Universidad Politécnica de Madrid
2023-2024
Wuhan University of Technology
2022-2024
Hubei University of Arts and Science
2024
Sinomach (China)
2011-2015
Hebei University of Technology
2007-2008
Tangshan College
2007-2008
Hebei University of Science and Technology
2000
Abstract In this prospective work, a machine learning (ML) model based on multiple independent random forest models to predict the configuration of binary composite bars is developed. The input variables ML are elastic wave signals collected at one end bar, while targets vectors representing bars. This study results indicate: First, short period propagated through bar can collect and carry detailed information entire bar; second, patterns hidden in be detected, extracted, used by model;...
Flexible sensors play an increasingly important role in damage detection of curved sheet-like structures large-scale equipment. The sensor array is widely used plate-like because it can collect information a centralized manner. annular has the same sensitivity to all directions circular element. This design realize comprehensive structural and improve efficiency damage. Aiming at flexible required for health monitoring large structures, composite based on polydimethylsiloxane (PDMS) material...
Lubricant failure or irrational lubrication is the root cause of industrial equipment failure. By monitoring distribution suspended particles in lubricants, it possible to discover hidden problems. After taking lubricating oil samples equipment, technology used analyze particle size and type content abrasive by electrical, magnetic, optical techniques. It necessary separate oils with impurities some method eliminate potential safety hazards ensure reuse efficiency lubricant. In this paper,...
ABSTRACTABSTRACTIn order to verify the feasibility and effectiveness of sensor used in complex concrete materials, an innovative application ultrasonic phased array detection for a structure was investigated. Comparing with traditional piezoelectric composites, orthotropic composite material (OPCM) can be as transducers damage show clear advantages because their high sensitivity directivity along polarization direction. A low frequency transducer consisting 16 OPCM elements is studied. The...
The use of composite plate structures has become increasingly prevalent in industries such as civil engineering, aerospace, high-speed rail, automotive, and wind power. However, the propagation ultrasonic Lamb waves these is subject to multi-modal frequency dispersion effects, which, coupled with complicated anisotropic mechanism materials, makes it challenging extract damage scatter signals without a health signal reference. In this study, we apply frequency-wavenumber ( f- k) domain filter...
With the advantages of high performance and low loss, interdigital surface acoustic wave (IDT-SAW) transducers are widely used in fields nondestructive testing, communication broadcasting. The production, application (SAW) actuators has become a research hotspot. Based on basic principle SAW, an IDT-SAW transducer is designed fabricated using silk-screen printing this work. experiment results show that terms SAW performance, can generate standing comparable to those generated traditional...
In the application of Structural Health Monitoring (SHM) methods and related technologies, transducer used for electroacoustic conversion has gradually become a key component SHM systems because its unique function transmitting structural safety information. By comparing analyzing health large‐scale structures, theories based on ultrasonic guided waves are studied. The technologies research status interdigital wave arrays which damage detection introduced. fields transducers summarized....
Stack migration imaging technology (SMIT), an advanced data processing technique typically used in geophysical exploration, was employed for the detection of small cracks inside concrete structures. Ultrasonic transducers were utilized as both actuator and sensor to generate receive stress waves concrete. The wave field reflected from damage synthesized at a common reflective point highlight effective signals by using multiple transducers. Two specimens with embedded examined horizontal...
Structural health monitoring (SHM) is of vital importance to the detection damage in large structures. Ultrasonic transducers used excite and receive signals have become an important part SHM. For traditional PZT ultrasonic transducer, there are some shortcomings such as poor flexibility designability. Due limitation structure shape, rectangular interdigital transducers, which widely structural monitoring, difficulty receiving all directions frequency bandwidth narrow efficiency low. On this...
The microfluidic chip can be used to separate particles via the acoustic radiation force and applied separation of impurity from lubricating oil. A device that separates by controlling standing surface waves (SSAWs) was proposed. concentration suspended were simulated using COMSOL Multiphysics modeling software. exerted on their subsequent motion in channel analyzed, then exposed SSAWs verified. We also investigate how frequency SSAW affects particle discuss advantage concentrate particles....
A damage index describing severity based on the Auto correlation function at Maximum point value Vector (AMV) is proposed for assessment as well locating described in this study. The detectability of AMV-based detection method compared with Mean Strain Energy (MSE) and Generalized Flexibility Matrix (GFM) method, to show its efficiency localizing simplicity conduct analysis. Moreover, a procedure estimate using sensitivity analysis introduced. stiffness reduction twelve-story shear frame...