Research

1. Mechanical properties of metal solid, foam and polymer materials

- High/low strain rate of material properties

- Constitutive equation and model parameter

2. Safety analysis of structure in robot and architectural field

3. Finite element method in structural field

4. Development of experiment method for achieving exact mechanical properties

5. Development on smart materials for absorbing the impact fore and dynamic force

8. Principal investigator (PI), “ Study on the development of constitutive model for human skin and numerical collision model for human safety in human-robot collaboration ”, NRF, June. 2017 ~ May. 2020

The main purpose of the research is to develop a control system for intelligent robots that utilizes mechanical-physical properties of the human skin and collision model of numerical analysis. The primary objectives of the research are pointed out below:

1) Presentation and verification of development methodology of the constitutive equation of skin and development of three-dimensional numerical analysis collision model based on the dynamics

2) Determination of constitutive equations of human skin and development of three-dimensional numerical analysis collision model considering contact and material nonlinearity

3) Injury safety evaluation method using collision model and developing the methodology for Intelligent Robot System

7. Co-PI, “Microcell-polyurethane foam for improving flame retardancy of battery pack for electric vehicles”, SMBA, May. 2017 ~ April.2019

• Microcell polyurethane foam excellent in compressibility and shock absorption

• Microcell urethane foam excellent in environment

• Continuously manufactured polyurethane foam

- Development of constitutive model of polyurethane foam model for FEM

6. Team member, “Development of fundamental safety technology for mobile robots and wearable robots in human-robot collaboration environments”, MOTIE, Sep. 2015 ~ present

• Development of constitutive model of skin and impact FEM skin model

• Development on standard of injury factor of impact between human and robot

5. Team member, “Evaluation of Mechanical Properties of Basalt Composites with MMT and Reliability Evaluation of Materials with Seawater Absorption”, KIMST, Mar. 2014 ~ Feb. 2015

• Adhesive strength on contact surface with various shape based on simulation

• Experiment on mechanical properties according to presence/absence of seawater absorption

4. Team member, “Development of fundamental safety technology for mobile robots and wearable robots in human-robot collaboration environments”, MOTIE, Sep. 2015 ~ present

• Development of constitutive model of skin and impact FEM skin model

• Development on standard of injury factor of impact between human and robot

3. Team member, “Evaluation of Mechanical Properties of Basalt Composites with MMT and Reliability Evaluation of Materials with Seawater Absorption”, KIMST, Mar. 2014 ~ Feb. 2015

• Adhesive strength on contact surface with various shape based on simulation

• Experiment on mechanical properties according to presence/absence of seawater absorption

2. Team member, “Development on measurement and analysis technology of continuous passive motion for functional recovery in knee joint”, KRISS, Jan. 2008 ~ Oct. 2009

• Kinematic analysis of knee and instrument during continuous manual motion

• Development of 3D-CAD Knee Joint model and Continuous Exercise Mechanism Model

• Measurement and evaluation of human body mechanics during continuous manual exercise

1. Team member, “Development of evaluation technology for intelligent surgical robot system”, MFDS, Feb. 2007 ~ Nov. 2007

• Development of performance and safety evaluation items for surgical robots and surgical planning systems

• Developed optimized performance and safety evaluation method for each selected item