Study of Air Inflow Type Variable Damping Force Particles Damper

2023 Fiscal Year Final Research Report

• Project/Area Number: 20K04372
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 20010:Mechanics and mechatronics-related
• Research Institution: Toba National College of Maritime Technology
• Principal Investigator: Hayashi Koichi 鳥羽商船高等専門学校, その他部局等, 教授 (30613947)
• Project Period (FY): 2020-04-01 – 2024-03-31
• Keywords: ダンパ / オイルレス / 粒状体 / 減衰力

Outline of Final Research Achievements

In this study, properties of the damping force and properties of the vibration damping of the air inflow type particles damper were investigated. When the particles damper was installed horizontally, no difference due to air flow rate was observed in properties of the damping force and properties of the vibration damping. On the other hand, when the particles damper was installed vertically, notable difference due to air flow rate was observed in properties of the damping force and properties of the vibration damping. Therefore, it was clarified that the air inflow type particles damper functions as variable damping force damper when the particles damper installed vertically.

Free Research Field

機械工学

Academic Significance and Societal Importance of the Research Achievements

本研究では，粒状体ダンパの有効な減衰力可変方法を示した．このことにより粒状体ダンパも，状況に応じて減衰力を変化させることが求められる際に使用できるダンパの候補の一つとして挙げることができるようになったものと思われる．このことは，現在広く使われているオイルダンパの代わりとして粒状体ダンパを用いることができる適用範囲が広がったことを示唆しており，オイルダンパが引き起こす可能性がある環境問題や資源問題の解消につながることが期待できる．