Yuki Laboratory, The University of Electro-Communications

Research Subjects

Acoustic Emission Technology

The phenomenon in which elastic waves are generated associated with a sudden change that occurs in a solid, such as cracking, is called acoustic emission (AE). The sound of snapping wood chips and earthquakes due to the movement of underground plates are examples of AE around us. We can know how fracture goes on and where damage occurs by the AE method, discussing parameters on measured AE signals, such as the amplitude and the count, and analyzing the waveforms. The AE method has the advantage of obtaining global information in real time, so it is effective for ensuring the safety of things. We have been investigating the applicability of the AE method to various targets and developing elemental technologies of the AE method.

Computer Assisted Instruction System

The capability to imagine the movement of mechanisms and drawing literacy are requirements for a mechanical engineer. Acquiring these skills is preferable not only to listening to lectures and reading books but also to watching real machines and thinking for oneself. However, today's industrial products tend to become black boxes, so there are fewer opportunities to see how those work. In addition, changes in the circumstances surrounding higher education make it difficult to find time to study specialized subjects in depth and with care. Although computers have the potential to fill such gaps, only the professionals in mechanical engineering know the essentials to learn mechanical engineering. We have been developing computer-assisted systems that enable exercises utilizing the flexibility of computers.

Members

Associate Professor Hironobu Yuki, 1 Graduate Student (Master's Course), 3 Undergraduates

Publications

Journals / Proceedings / Oral Presentations