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February 26, 20260 citations

多層構造化による梁構造の減衰増強に関する実験的研究

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和安和彦 安達

Key Points

  • The aim is to enhance damping in steel beam structures through multilayer construction.
  • Examined mode characteristics of single-layer and multilayer structures under free boundary conditions.
  • Conducted impact tests to measure the acceleration transmission function of steel beam structures.
  • Compared the changes in mode properties across single, double, and quadruple-layered structures.
  • Found that quadrupling layers reduced the first bending natural frequency by about 13%.
  • Increased mode damping ratio was achieved with multilayer structures.

Abstract

本研究は鋼製梁構造の多層化による減衰増強を目的とする．両端自由の境界条件の下で単層構造（一体構造）のモード特性（曲げ1次の固有振動数とモード減衰比）を基準とし，2層や4層の多層構造（組立構造）でのモード特性の変化を実験的に調べる．打撃試験で鋼製梁構造のアクセレランス伝達関数を測定した．伝達関数の比較から，4層化することで曲げ1次固有振動数の低下を約13%程度に抑えながらモード減衰比を増強できることが明らかになった．

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Cite This Study

和彦 安達 (2025) studied this question.

synapsesocial.com/papers/699f95ba1bc9fecf3dab3d99https://doi.org/10.1299/jsmedmc.2025.72
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