Countermeasures for dynamic instability of large-scaled Tainter gate for long-term safety operation

2014 Fiscal Year Final Research Report

• Project/Area Number: 24560270
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Dynamics/Control
• Research Institution: Ashikaga Institute of Technology
• Principal Investigator: ANAMI KEIKO 足利工業大学, 工学部, 准教授 (30346077)
• Co-Investigator(Kenkyū-buntansha): ISHII Noriaki 大阪電気通信大学, 工学部, 教授 (40098083)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 流体関連振動 / 自励振動 / 連成振動 / 動的不安定 / 安全対策 / 理論解析 / モデル実験 / 実機試験

Outline of Final Research Achievements

In order to maintain the long-term safety operation of the practical use Tainter gates, theoretical and experimental studies were conducted. First, the operational dynamic stability were secured by using the previous field test results and our theoretical analysis. Second, the countermeasure and reinforcement, such as installation of damper and additional mass for the skinplate structure were examined by theoretical and FEM analysis. In addition, the flexible wire cables of the gate to ensure the safety, were examined its validity in model experiments. Moreover, the safety operating range with small gate opening were expanded after confirmation of the long-term dynamic stability from the field vibration test for practical use Tainter gate.

Free Research Field

機械力学・計測制御