Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : September 03, 2017 - September 06, 2017
Biomimetics has received much attention in recent years. This study takes notice of the auditory ossicles, especially the ossicles have a flat sound conductive property. There is little research of making a model that has the function of the auditory ossicles. Therefore, this study evaluates the vibration characteristics of a model mimicking the auditory ossicles. Two types of models were made with 3d printers. The first model imitated only the shape of the ossicles. The second model adds 4 beams that imitate some kind of ligaments. The size of two models are 10 times. The experiment measures the amplitude of the bottom of stapedis. At that time, a spring imitating the inner ear pressure was attached to models. Experimental Vibration was given by the speaker and diaphragm. The frequency was set from 300 Hz to 1400 Hz. Sound pressure was constant at 110dB. As the result, amplitudes of 400Hz, 700Hz, 900Hz were amplified by attaching a spring. However, the models didn’t have a flat sound conductive function.
