Earthquake Engineering and Disaster Prevention Laboratory
Research Field
I am a Distinguished Professor of National Chi Nan University and the host of the Disaster Prevention Laboratory. My research topic revolves around the field of disaster prevention applications, and structural control technology, experimental technology, and image measurement are the core items of the research content. I am currently implementing a bilateral international cooperation program with the French ISAE-Supmeca, and we welcome top students from home and abroad to join us.
The Disaster Prevention Laboratory is one of the key laboratories of the School of Science and Technology, National Chi Nan University. Its main regular members include professors from the Departments of Civil Engineering, Electrical Engineering, and Information Engineering. The purpose of this laboratory is the research and development of advanced disaster prevention technology, and can be divided into two sub-fields: disaster reduction technology and disaster prevention monitoring.
In addition to inter-departmental cooperation within the school, the laboratory also has close cooperative relations with National Cheng Kung University, National University of Kaohsiung, and National Chin-Yi University of Technology. Both ISAE-Supmeca – Institut superieur de mecanique de Paris in France and Department of Civil and Water Resource Engineering, Nagano University in Japan have experience in cooperation and personnel exchanges in recent 4 years. Currently, we are cooperating with ISAE-Supmeca to implement a four-year (2023~2026) Taiwan-France bilateral cooperation project, which is this project.
The field of research interestinf od the PI include: Active, Passive and Semi-Active Dampers, Structural Isolation, Adaptive Structures, Dynamic Testing, Digital Image Correlation method (DIC), Numerical Analysis, Finite Element Method (FEM), Vector Form Intrinsic Finite Element method (VFIFE), Parallel Computation with GPGPU, Computer Aided Measurement and Control.
2024/02/15 Japan Society for the Promotion of Science, FY2023 JSPS International Fellowships for Research in Japan (Short-term).
2023/05/17 ISAE SUPMECA, France, visiting professor (3 months)
2022/09/01 Japan Society for the Promotion of Science, FY2020 JSPS International Fellowships for Research in Japan (Short-term).
2023/05/15-2023/07/31 Visiting Professor, ISAE-Supmeca – Institut superieur de mecanique de Paris.
Since 2015, Distinguished Professor of National Chi Nan University.
Publications include 97 journal papers, 72 international conference papers, 21 patents
Dr. Ing., Technische Hochschule Aachen (RWTH Aachen), Aachen, Germany
2 Vacancies
Job Description
Categroies
The tasks can be devided into 3 categories including followings:
- Under the guidance of the instructor, assist in completing the programming and experimental verification of "Development of Real-time Identification Software for Bridge Dynamic Loads". For this task, knowledge of structural dynamics and system identification is required. The programming language C++ is also necessary.
- Design and produce a three-dimensional bridge deformation control mechanism and control law with torsion control capabilities, and conduct large-scale structural experimental verification. Under this topic, PID control theory, Kalman Filter, mechanism design, embedded control circuit and Arduino language must be used.
- Establish a digital twin system of the bridge. In this project, it is necessary to establish a structural system identification module based on image measurement and acceleration response, a detection module for control system failure, and complete experimental verification. For this purpose, structural dynamics and system identification theory are necessary knowledge. In addition, it would be better if you have the ability to apply AI in event detection or the interest in learning.
Topic 1 Establishment and experimental verification of three-dimensional NEM virtual bridge pier control
Objective: 1. Design, manufacture and setup of three-dimensional NEM virtual pier control hardware.
2. Develop control software on Arduino (Optionally under guidance of prof. Shih)
3. Experimental verification of the control performance
Model: NEM-IV-II
Signal used: Displacement (DIC, LVDT, Laser), Acceleration
Test method: Moving load and exciter
Hardware: PC, Jason Nano (optional), Arduino DUE
Literature: required (Active control of structures in civil and aerospace engineering)
Procedure:
- Summarize one journal paper/2 weeks [Research log]
- Learn servo motor position pulse mode control (manual, Victor’s report)
- Learn Arduino programming for controlling servo motor of NEM
- Learn Arduino programming for controlling moving load
- Design and produce a NEM single virtual bridge pier with 3D control effect on the NEM-IV-II model.
- Conduct static testing and parameter optimization
- Conduct dynamic testing (pedestrian-like excitation), stability study
- Conduct Joint experiment with Topic 3-2.
- Final report
Topic 2 Establishment of multiple NEM virtual pier control and experimental verification
Objective: 1. Design, manufacture and setup of multiple (2) NEM virtual pier control hardware.
2. Develop control software on Arduino (Optionally under guidance of prof. Shih)
3. Experimental verification of the control performance
Model: NEM-IV-0
Signal used: Displacement (DIC, LVDT, Laser), Acceleration
Test method: Moving load and exciter
Hardware: PC, Jason Nano (optional), Arduino DUE
Literature: required (Active control of structures in civil and aerospace engineering)
Procedure:
- Summarize one journal paper/2 weeks [Research log]
- Learning Servo Motor position-pulse mode control (Handbook, Victor’s report)
- Learning Arduino programming for controlling servo motor of NEM
- Learning Arduino programming for controlling moving load
- Learning Operation of NEM single virtual pier control on NEM-IV-0 model.
- Change NEM to Worm-Gear reducer on NEM-IV-0 model.
- Perform experimental parameter study
- Update to double virtual pier control
- Perform experimental parameter study
- Final report
Topic 3 Realtime identification of modal properties of NEM-IV-II model.
Objective: Realtime Identification of modal frequencies and shapes of 1st, 2nd and 3rd (optional) mode.
Signal used: Displacement (DIC, LVDT, Laser), Acceleration
Test method: Static and Dynamic testing
Hardware: PC, Jason Nano (optional), Arduino DUE
Literature: required (Identification, health monitoring and digital twin in civil and aerospace engineering)
Procedure:
- Summarize one journal paper/2 weeks [Research log]
- Establish Arduino-based ADC controller (Arduino Due+AD7606)
- Learn DIC_Realtime_V3 operation
- Synchronize DIC and Acceleration measurement (PC+DIC/Arduino Due+AD7606)
- Visuino application for graphical representation of measurement result
- Visualization of FFT spectrum (input xi -> Xi)
- Perform Static Testing on NEM-IV-II model.
- Identify static stiffness matrix, structural model.
- Perform Dynamic Testing on NEM-IV-II model.
- Identify modal parameters (shapes, frequencies, damping ratios…)
- Real-time graphical presentation of modal parameters on PC/visuino
- Final report
Topic 4 Realtime identification of external loading and control stability
Objective: 1. Realtime Identification of external loading of a well-known structure (K, M, C are given).
2. Graphical presentation of structural response and states (modal parameter, control states)
3. Define and identify the healthy state of the NEM control system.
Signal used: Displacement (DIC, LVDT, Laser), Acceleration
Test method: Static and Dynamic testing
Hardware: PC, Jason Nano (optional), Arduino DUE
Literature: required (Identification, health monitoring and digital twin in civil and aerospace engineering)
Procedure:
- Summarize one journal paper/2 weeks [Research log]
- Learn Labview (community version) + NI DAQ module for dynamic measurement of acceleration signal (1000Hz/4channels)
- Learn DIC_Realtime_V2 operation
- Synchronize DIC and Acceleration measurement (PC+DIC/Labview+NI DAQ.)
- OpenCV for real-time graphical representation of measurement result
- Perform Static Testing on NEM-IV-0 model.
- Identify static stiffness matrix, structural model.
- Identify position and magnitude of multiple static loads
- Perform Dynamic Testing on NEM-IV-0 model.
- Identify modal parameters (shapes, frequencies, damping ratios…)
- Identify position and magnitude of multiple dynamic loads (optional)
- Define an deep learning for identifying a nonstable state of NEM control
- Final report
General Requirements:
- Research log (ref. Samples, daily)
- Weekly meeting (ppt., summarize, question and discussion)
- Group meeting (reference review, 2 papers/week)
Final Report includes: (January)
- Introduction
- Literature review
- Theories
- Experimental setup
- Result and discussion
- Conclusion
Preferred Intern Education Level
The content of this internship requires in-depth foundamental knowledge of mathematics and mechanics skills and advanced programming language skills, and those with experience in creating experiments are preferred. Therefore, this internship opportunity is suitable for Ph.D. and master students to join us.
Skill sets or Qualities
Skills Required for Task 1, 2
- Proficiency in engineering mathematics, material mechanics
- Mechanical design, automation control
- Familiar with Arduino or Respberry PI
Skills Required for Task 3, 4
- Proficiency in engineering mathematics, material mechanics, structural dynamics and Signal processing
- Excellent in Programming language C++ or Python
- Familiar with using application software, eg. Solidworks, SAP2000