Graduate School of Engineering

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Research Areas

Design Engineering

Studies in Design Engineering include strength of engineering materials, computer-integrated engineering, CAD/CAM, kinematics, dynamics and vibration, machine control and robotics in the wide area of mechanical engineering. Research topics cover (1) evaluation of engineering materials, such as fatigue damage detection, materials testing and strain measurement using optical method and image analysis, (2) vibration analysis of composite materials and rotating object, (3) motion control of manipulators, learning control forrobotic systems, (4) design of sports equipments such as skis, snowboards and golf clubs, (5) digital feedforward control for automatic machine and feedback control by visual servo for transportation machine.

Crane control based on 3D camera vision

Energy Engineering

Energy Engineering aims at the achievement of the sustainable society in this course, and the research and the education of generation, storing, and the control of energy are done. Concretely, the development design and the combustion evaluation of an environment-friendly biomass fuel and the DME fuel are studied. Micro thermal fluid, particularly on its heat and mass transfer and chemical reaction, is studied with developing visualization techniques on the properties of reactive fluid.

Micro-Flame Array

Sound propagation and attenuation are studied using experimental, analytical and numerical approach. This figure shows calculated sound intensity in an outer field and sound pressure distribution in an inner field of a ventilator with a semi-closed area acting as a resonator.

Sound distribution in and around a ventilator.

Production Engineering

Production Engineering plays a vital role as a pillar of all industries. Some of the particular fields involving production engineering are the following; development of new machining processes including a hybrid honing and improvement of the machined surface integrity; development of surface origination technique using high-speed collision of fine-particles of metal or non-metal, improvement of sliding characteristics and fatigue strength of machine elements; study on the improvement in fatigue strength of welded joints, study on the joining of plastics; environment-conscious cutting system and intelligent machine tools.

Research Group for Production Engineering

Precision Engineering

The main aim of Precision Engineering is to develop new products, such as X-ray telescopes, X-ray microscopes, EUV optics, LCD, DVD, digital cameras, high power laser optics and sensors, by exploiting novel physical and chemical properties. The challenges of making ultra-precision aspherical surfaces with nano or sub-nano meter precision have been met by developing new machining and measuring methods. Thin film deposition is one of these key technologies. The measurement of nano surface texture and functional properties is then carried out by specially-designed measuring machines such as SPM, TEM and SEM. This group has very tight and world-wide connections with industry and academia.

Ultra-precision machine of 1nm control for micro structured mold.

Ultrasonic 2-axis vibration assisted polishing machine.

Hard X-ray telescopes onboard ASTRO-H satellite (from JAXA).

Ultra-precision aspheric molding dies

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