Development of Impact-absorption System by Applying Ultrasonic Vibrations

2015 Fiscal Year Final Research Report

• Project/Area Number: 25420202
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Dynamics/Control
• Research Institution: Tokuyama College of Technology
• Principal Investigator: SUZUKI ATSUYUKI 徳山工業高等専門学校, 機械電気工学科, 准教授 (40450142)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 超音波振動 / 衝撃吸収 / 高張力鋼板 / CFRP / Blaha効果

Outline of Final Research Achievements

We aim to develop an impact-reduction system by applying ultrasonic vibrations, which can change the rigidity of the material instantaneously in the event of an impact. This study was carried out to verify if the ultrasonic vibrations were applicable to some specimens such as a high-tensile steel plate and a carbon fiber-reinforced polymer (CFRP) plate which have been used in recent years to realize lightweight automobiles. When the ultrasonic vibrations were applied to the high-tensile steel plate, the impact force and the springback amount were reduced by up to 35% and 43%, respectively.

Free Research Field

工学