323 鋼鉄道橋の振動騒音の予測とインパルス加振試験による検証(床衝撃音制御・振動騒音評価,OS-20:サイレント工学)

概要

論文の詳細を見る
Steel railway bridges characteristically tend to generate high-level structure-borne noise. It is an urgently required for railways, therefore, to decrease the vibration and noise of steel bridges. To develop effective countermeasures against this problem, it is important to study the noise generating mechanism and establish a method to predict the noise of steel bridge. The authors developed a new method for this purpose by combining the analysis of flexural vibration of plate based on the Rayleigh-Ritz method and finite element analysis method (FEM). The former is effective to predict vibration in a wide frequency range of including very high areas but doesn't suit the vibration analysis of a structure as a whole, while the latter dovetails the former in performance.
2004-09-27