Xiaobo Rui
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View article: Design and Fabrication of Air-Coupled CMUT for Non-Contact Temperature Measurement Applications
Design and Fabrication of Air-Coupled CMUT for Non-Contact Temperature Measurement Applications Open
Compared with traditional piezoelectric transducers, Capacitive Micromachined Ultrasonic Transducers (CMUTs) have advantages such as better impedance matching with air, smaller size, lighter weight, higher sensitivity, and ease of array fo…
View article: Nonlinear bubble dynamics in cryogenic two-phase flow under ultrasonic excitation considering mass transfer
Nonlinear bubble dynamics in cryogenic two-phase flow under ultrasonic excitation considering mass transfer Open
Bubble dynamics under ultrasonic excitation is the theoretical basis for ultrasonic measurement of gas-liquid two-phase flow. In cryogenic two-phase flow, bubble oscillation will be affected by vapor mass transfer due to the presence of li…
View article: Double-side debonding detection of honeycomb sandwich structure based on air-coupled ultrasonic guided waves
Double-side debonding detection of honeycomb sandwich structure based on air-coupled ultrasonic guided waves Open
In structural health monitoring, fast, non-destructive, and non-contact testing has gradually become an important demand. This paper presents a double-side debonding detection method of honeycomb sandwich structure (HSS) based on the air-c…
View article: Study of the thermal characteristics of propellant tanks in microgravity and its application to propellant gauging
Study of the thermal characteristics of propellant tanks in microgravity and its application to propellant gauging Open
The use of the thermal propellant gauging (TPG) method for propellant mass detection in aerospace tanks inevitably involves the continuous heating of the tank, and the understanding of the heat transfer mechanism of the tanks in a microgra…
View article: Leakage Source Localization Method for Aerospace Composite Structures Based on U-Array Wave Velocity-Compensated Beamforming
Leakage Source Localization Method for Aerospace Composite Structures Based on U-Array Wave Velocity-Compensated Beamforming Open
Composite materials have been widely used in spacecraft structures. Due to the harsh environment in space, gas leakage will occur in the structure, so it is necessary to locate the leakage position in time. In this paper, a beamforming loc…
View article: Acoustic Source Localization in CFRP Composite Plate Based on Wave Velocity-Direction Function Fitting
Acoustic Source Localization in CFRP Composite Plate Based on Wave Velocity-Direction Function Fitting Open
Composite materials are widely used, but they are often subjected to impacts from foreign objects, causing structural damage. To ensure the safety of use, it is necessary to locate the impact point. This paper investigates impact sensing a…
View article: A continuous underwater bubble localization method using passive acoustic array beamforming
A continuous underwater bubble localization method using passive acoustic array beamforming Open
The bubble is an effective carrier of underwater gas leakage detection, and its rapid localization is of great significance. In this paper, a continuous underwater bubble localization method using passive acoustic array beamforming is prop…
View article: Noncontact Damage Topography Reconstruction by Wavenumber Domain Analysis Based on Air-Coupled Ultrasound and Full-Field Laser Vibrometer
Noncontact Damage Topography Reconstruction by Wavenumber Domain Analysis Based on Air-Coupled Ultrasound and Full-Field Laser Vibrometer Open
Noncontact ultrasonic detection technology is an effective method to detect damage in time. This paper proposes a noncontact damage detection system based on air-coupled ultrasound and full-field laser vibrometer, which realizes the excita…
View article: Leak Source Beam-forming Location of Spacecraft in Orbit Based on Dispersion Characteristics of Lamb Wave
Leak Source Beam-forming Location of Spacecraft in Orbit Based on Dispersion Characteristics of Lamb Wave Open
In recent years, the number of space debris is increasing rapidly, threatening the safety of spacecraft. More and more spacecraft are at risk of colliding with space debris, which may cause air leakages on the sealed container of spacecraf…
View article: Machine learning approaches for estimating building energy consumption
Machine learning approaches for estimating building energy consumption Open
Using building data and corresponding weather conditions provided by ASHRAE, a statistical method that carefully measures features and applies both linear regression and gradient boosting machine models to predict and analyse building ener…
View article: Research on Leakage Location of Spacecraft in Orbit Based on Frequency Weighting Matrix Beamforming Algorithm by Lamb Waves
Research on Leakage Location of Spacecraft in Orbit Based on Frequency Weighting Matrix Beamforming Algorithm by Lamb Waves Open
Clashes between space debris and spacecraft in orbit may cause air leakages, which pose a substantial danger to the crew and the spacecraft. Lamb wave dispersion in spacecraft structures and the randomness of leak holes are the difficultie…
View article: An Impact Location Algorithm for Spacecraft Stiffened Structure Based on Posterior Possibility Correlation
An Impact Location Algorithm for Spacecraft Stiffened Structure Based on Posterior Possibility Correlation Open
In order to ensure the safety of spacecrafts in orbit, impact location is an important part of structural health monitoring systems. In this paper, an impact location algorithm based on posterior probability correlation is proposed to solv…
View article: An Impact Location Method Based on Transmission Coefficient Weighted Impact Intensity
An Impact Location Method Based on Transmission Coefficient Weighted Impact Intensity Open
The stiffened plate has complex influences on the propagation characteristics of Lamb waves, which causes difficulties for the impact location. In order to realize the impact location in stiffened plate, this paper proposes a transmission …
View article: Lateral Pipeline Buckling Detection via Demagnetization and Interior Magnetic Measurement
Lateral Pipeline Buckling Detection via Demagnetization and Interior Magnetic Measurement Open
Thermal buckling of subsea pipelines often occurs and seriously threatens pipeline safety. The spherical detector (SD) can realize quasi real-time detection of pipeline buckling owing to its low blockage risk and convenient launch-retrieva…
View article: Three-Point Marking Method to Overcome External Parameter Disturbance in Stereo-DIC Based on Camera Pose Self-Estimation
Three-Point Marking Method to Overcome External Parameter Disturbance in Stereo-DIC Based on Camera Pose Self-Estimation Open
Stereo digital image correlation (stereo-DIC) requires the stereo-camera system to remain fixed during the measurement process. This requirement brings a lot of inconvenience to the practical application of stereo-DIC. In many application …
View article: Low-Cost and High-Efficiency Method for Detecting Vertical Bends of Subsea Pipelines
Low-Cost and High-Efficiency Method for Detecting Vertical Bends of Subsea Pipelines Open
Subsea pipelines often bend upward due to vertical buckling or downward due to spanning and seabed settling. Typically, harsh environments and the difficulty of accessing underwater pipelines make the inspection and monitoring of subsea pi…
View article: Crosspoint Localization of Spiral and Girth Welds of Spiral Steel Pipelines
Crosspoint Localization of Spiral and Girth Welds of Spiral Steel Pipelines Open
Crosspoint of spiral and girth welds of spiral steel pipelines transporting high-pressure oil and gas is easy to crack due to welding defects and corrosion, so routine excavation and careful inspection are required. In order to reduce the …
View article: Synthesis and characterization of a magnetite (Fe<sub>3</sub>O<sub>4</sub>) nanofiltration membrane
Synthesis and characterization of a magnetite (Fe<sub>3</sub>O<sub>4</sub>) nanofiltration membrane Open
Meso-porous magnetite membranes have been synthesized by dip-coating iron oxide dispersion on ∼2 mm thick α-Al 2 O 3 supports, followed by nitrogen-environment thermal processing. Both gas and water permeabilities of magnetite membranes we…
View article: A Correction Method for Heat Wave Distortion in Digital Image Correlation Measurements Based on Background-Oriented Schlieren
A Correction Method for Heat Wave Distortion in Digital Image Correlation Measurements Based on Background-Oriented Schlieren Open
Digital image correlation (DIC) is a kind of displacement and strain measurement technique. It can realize non-contact and full-field measurement and is widely used in the testing and research of mechanical properties of materials at high …
View article: A Review on Reverse Osmosis and Nanofiltration Membranes for Water Purification
A Review on Reverse Osmosis and Nanofiltration Membranes for Water Purification Open
Sustainable and affordable supply of clean, safe, and adequate water is one of the most challenging issues facing the world. Membrane separation technology is one of the most cost-effective and widely applied technologies for water purific…
View article: A Microcrack Location Method Based on Nonlinear S0 Mode Lamb Wave and Probability Scan Positioning Imaging Matrix
A Microcrack Location Method Based on Nonlinear S0 Mode Lamb Wave and Probability Scan Positioning Imaging Matrix Open
Early damage, such as microcrack, occupies most of the fatigue life of materials, and timely detection of early damage and positioning has great engineering and economic value. In this paper, a matrix scanning and positioning imaging metho…