A5059858391- Structural Analysis and Optimization
- Advanced Materials and Mechanics
- Modular Robots and Swarm Intelligence
- Structural Engineering and Vibration Analysis
- Architecture and Computational Design
- Space Satellite Systems and Control
- Structural Analysis of Composite Materials
- Innovations in Concrete and Construction Materials
- Advanced Antenna and Metasurface Technologies
- Spacecraft Design and Technology
- Vehicle Noise and Vibration Control
- Biometric Identification and Security
- Structural Health Monitoring Techniques
- Fluid Dynamics and Mixing
- Magnesium Alloys: Properties and Applications
- Material Properties and Failure Mechanisms
- Numerical methods in engineering
- Dielectric materials and actuators
- Smart Parking Systems Research
- Indoor and Outdoor Localization Technologies
- Robotic Mechanisms and Dynamics
- Smart Materials for Construction
- Mechanical stress and fatigue analysis
- Aerospace Engineering and Energy Systems
- Space exploration and regulation
University of Alabama
2023-2025
Collaborative Innovation Center of Chemical Science and Engineering Tianjin
2024
Tianjin University
2024
Nantong University
2024
State Key Laboratory of Chemical Engineering
2024
Lawrence Technological University
2020-2023
Jinan University
2020-2021
Southern California University for Professional Studies
2016-2019
University of Southern California
2016-2019
Zhejiang University
2012
With the advantages of high positioning accuracy and low cost, visible light (VLP) is becoming a promising solution for practical indoor system. However, most VLP systems require at least two LED lamps accurate position calculation. Therefore, application in scenarios may be restricted due to this limitation. In paper, we propose fast high-accuracy single-LED based Firstly, an unbalanced algorithm proposed increase reduce computational complexity. Secondly, beacon searching further...
Large deployable mesh reflectors are found in many space applications. To warrant the performance of this type structure, it is desirable to have a methodology for systematic design reflector surface geometries that can yield high accuracy and produce almost uniform distribution member lengths triangular facet sizes while maintaining minimum total length. The desired methodology, however, currently unavailable. This effort aims fill aforementioned technical gap literature. Presented paper...
In the design of a large deployable mesh reflector, high surface accuracy is one ultimate goals since it directly determines overall performance reflector. Therefore, evaluation needed in many cases and analysis reflectors. The usually specified as root-mean-square error, which measures deviation geometry from desired working surface. this paper, methods error calculation for reflectors are reviewed. Concept reflector gain, describes performance, its relationship with presented. Approaches...
Traditional shape adjustment methods for large high-precision cable network structures usually use many actuators and are only applicable to predictable distortions. To this end, a new method, namely, the minimum residual nodal displacement optimal of is developed. The method can significantly reduce distortion structure by automatically placing small number at locations. This under both unpredictable distortions, determine needed satisfy prescribed design requirement surface accuracy. In...
A new structural design method is developed in this paper to improve the surface accuracy and enhance performance of large deployable mesh reflectors. self-standing truss with hard points (SSTHP), which an additive pin-jointed structure, composed bar members has zero internal mechanisms. The nodes SSTHP are little displacements when stiffness structure high all directions. Through implementation SSTHP, accuracy, effective region area, nearly uniform member tension distribution simultaneously...
Abstract Tensegrity structures become important components of various engineering due to their high stiffness, light weight, and deployable capability. Existing studies on dynamic analyses mainly focus responses nodal points while overlook deformations cable strut members. This study proposes a non-contact approach for the experimental modal analysis tensegrity structure identify its three-dimensional (3D) natural frequencies full-field mode shapes, which include modes with A 3D scanning...
Abstract Experiments were designed to ascertain the main factors for Sauter mean drop size ( d 32 ) of dispersed phase in a three‐stage modified Scheibel extraction column with no mass transfer. A precise correlation applied liquid‐liquid systems low interfacial surface tension was proposed calculating . The maximum relative error all data 16.0 % and ±4.6 %.
Large deployable mesh reflectors are essential for space applications, providing precise reflecting surfaces high-gain antennas used in satellite communications, Earth observation, and deep-space missions. During on-orbit missions, active shape adjustment attitude control crucial maintaining surface accuracy proper orientation these reflectors, ensuring optimal performance. Preventing resonance through thorough dynamic modeling vibration analysis is vital to avoid structural damage ensure...
Pressure vessels are subjected to deterioration and damage, which can significantly reduce their strength loading capabilities. Among several procedures nowadays available repair damaged steel pipelines, composite-repairing systems have become popular over the past few years restore capacity of pipelines. This study reports a numerical-experimental investigation performed for composite-repaired pipeline made API 5L X60 steel. An experimental burst test was carried out on 4 m long pipe...
Abstract The advent of robotics in medicine has brought about a paradigm shift, enabling minimally invasive interventions for in-vivo practices. Pill-based robots, specifically designed at the millimeter scale, have emerged as viable alternative to traditional endoscopic methods gastrointestinal tract diagnostics and treatment. These millirobots, capable navigating complex constrained environments human body, offer significant advantage by thorough visualization or targeted drug delivery...
Large deployable mesh reflectors have been utilized widely for signal transmissions in space. The accuracy of reflecting surface such a reflector is key factor structure design and it usually evaluated by the root-mean-square errors. Traditional definitions errors do not measure real deviation geometry from desired working surface, which becomes problem when stringent required. In this paper, new definition error namely direct defined, directly measures surface. an accurate straight-forward...
View Video Presentation: https://doi.org/10.2514/6.2021-1148.vid Large deployable mesh reflectors are widely used as space antennas for signal transmission purposes. In design of large reflectors, it is crucially important to secure a desired reflecting surface with high accuracy. However, such shape hard maintain under distortions caused by thermal strain. Traditional adjustment methods usually require utilization number actuators, which critical issue due difficulty fixing malfunctioning...
Abstract Tensegrity structures have experienced continued research and development interests in the past several decades. Revealing dynamic characteristics of a tensegrity structure, for example: vibration analysis, is an important objective structural design analysis. Traditional modeling methods are inaccurate predicting responding due to their neglection internal displacements structure members. To solve this issue, new nonlinear method proposed paper. This defines position member as...