A5054967003- Ultrasonics and Acoustic Wave Propagation
- Structural Health Monitoring Techniques
- Non-Destructive Testing Techniques
- Thermography and Photoacoustic Techniques
- Infrastructure Maintenance and Monitoring
- Water Systems and Optimization
- Geophysical Methods and Applications
- Wireless Sensor Networks and IoT
- Advanced Measurement and Detection Methods
- Engineering Applied Research
- High-Voltage Power Transmission Systems
- Thermal Analysis in Power Transmission
- Structural Integrity and Reliability Analysis
- Lightning and Electromagnetic Phenomena
- Photoacoustic and Ultrasonic Imaging
- Fire Detection and Safety Systems
Nanchang Hangkong University
2024
South China University of Technology
2021-2023
East China Jiaotong University
2018
Underwater pipelines are the channels for oil transportation in sea. In course of pipeline operation, leakage accidents occur from time to natural and man-made reasons which result economic losses environmental pollution. To avoid pollution, damage detection underwater must be carried out. this paper, based on histogram oriented gradient (HOG) support vector machine (SVM), a non-contact ultrasonic imaging method is proposed detect shedding metal external anti-corrosion layer. Firstly,...
Optimal sensor placement is a significant task for structural health monitoring (SHM). In this paper, an SHM system designed which can recognize the different impact location and degree in composite plate. Firstly, finite element method used to simulate impact, extracting numerical signals of structure, wavelet decomposition extract band energy. Meanwhile, principal component analysis (PCA) reduce dimensions vibration signal. Following this, non-dominated sorting genetic algorithm (NSGA-II)...
Air conditioning condenser (ACC) is a key component of air-conditioning equipment. ACC tube leakage damage will cause huge economic losses and energy waste. The laser ultrasonic guided wave detection method suitable for due to its high sensitivity non-contact advantages. However, the size small weld joint not standardized, which makes it difficult aim at tube. And signals generated by excitation different incident angles are different. In this paper, Unsupervised Multi-source Adaptation...
Abstract Due to its good thermal conductivity and corrosion resistance, copper has become a common material for transmission pipelines. It is necessary detect the early signs of damage in pipelines effectively quickly. Laser ultrasound scanning non-contact non-destructive identification method, which can realize high-precision, detection. At same time, with progress internet technology, traditional testing begun use advanced technologies such as things cloud computing promote an upgrade...
External vibration is the main disturbance condition in practical monitoring of outdoor stranded structure using laser ultrasonic guided wave (UGW). It difficult to extract and identify real damage state under different conditions due variation guided-wave feature distribution. At present, there no effective solution this problem. In article, a new deep cross-domain adaptive semisupervised identification method proposed by transfer learning combining with actual demand monitoring. First,...
The sensor optimization arrangement is a combinatorial problem. It has great significance in structural health monitoring (SHM). choice of method directly related to the efficiency and feasibility optimizing calculation. There are many methods for optimization, heuristic algorithms have been widely used solving layout because their advantages large-scale data problems. In this paper, several common using placement introduced. disadvantages different analyzed. And its development trend prospected.
Bridge operation safety is a key to national security and people’s livelihood. The importance the urgency of bridge health monitoring damage detection are introduced here. In past, bridges often relied on experienced engineers. They rely their rich experience detect repair bridges. This method inefficient has low universality. Engineers can only maintain they familiar with. With increasing safety, durability normal use large bridges, research evaluation system been developed achieved wide...