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

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.