Our Research Concept
Since we are concerned with novel analysis and synthesis of coupled problems, we develop and apply computational methods for multi–physics, multi–scale, and multi–system coupled problems. Examples of current projects are the multi–physics and multi–scale coupled analyses of the resistance spot welding, the multi–physics and multi–system coupled analysis of insect flapping flight, and the design and fabrication of the insect–like MEMS.
Methods
a. Current-heat-structure interaction analysis
Coupled finite element analysis method among electric current, thermal conduction, and contacted structures. Coupled analysis computing frame work and multiscale coupled analysis method are also developed.
b. Structure-fluid-electric interaction analysis
Structure–fluid–electric interaction appears in various scientific and engineering problems such as MEMS. Therefore, we have been developing the novel finite element method to analyze this problem accurately.
c. Electromagnetic-structure interaction analysis
Coupled finite element analysis method, coupled characteristics, and numerical instability for magnetic damping phenomena are studied.
d. Fluid-structure interaction analysis
We study the novel finite element methods for fluid–structure interaction problems appear in biomechanics and thin flexible structure in fluid.
Applications
a. Resistance spot welding analysis
Mechanisms of the coupled phenomena during the resistance spot welding are examined using coupled finite element analyses.
b. Insect flapping analysis
Insect flapping flight is analyzed using the novel finite element method to reveal its mechanism. We found the passive mechanisms in flapping wings.
c. MEMS
Micro Electro Mechanical System is analyzed using the novel finite element method for the accurate prediction of vibration characteristics. We are also designing and developing the biomimetic MEMS.
d. Piezo electric actuator
Piezoelectric actuators such as the bimorph and SAW actuators are analyzed using the novel finite element method.
