Design Method of Tuned Mass Dampers with Initial Displacement for Vibration Control of Spatial Structures

2014 Fiscal Year Final Research Report

• Project/Area Number: 23560678
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Building structures/materials
• Research Institution: Osaka City University
• Principal Investigator: YOSHINAKA SUSUMU 大阪市立大学, 大学院工学研究科, 准教授 (70401271)
• Project Period (FY): 2011-04-28 – 2015-03-31
• Keywords: 建築構造 / 振動制御 / ＴＭＤ / 空間構造

Outline of Final Research Achievements

In this study, I proposed the new design formulas and verified control effect of the proposed method under impulse loading. (1) I focused on the vibration property between TMD damping ratio and modal damping ratio and proposed a new design formulas with higher control effect compared with the previous study. (2) Based on the theoretical solution for free vibration response, I proposed the formula for initial conditions to release initial displacement which can derive TMD initial displacement independently of various initial conditions. (3) By using an arch model with 40 meter span, I validated the proposed design formulas by the analytical method. (4) In order to verify control effect of the proposed method experimentally, using a small arch model with 1.5 meter span and 2.3mm thick steel plate, a vibration test using an impulse hammer was executed.

Free Research Field

工学（建築構造）