【摘要】 以流体声学相似原理为依据,对3种跌水坎形式进行噪声模拟试验。利用古典声学理论对背景噪声、声波反射、干涉与叠加进行分析与修正,评估降噪的效果,确定跌水坎的修改形式。并对修改方案进行不同比尺的试验,对声强进行曲线拟合,绘制趋势线,推求原型噪声的大小,为工程建设提供参考依据。更多还原

【Abstract】 Based on the principles of acoustic similarity,three forms of energy dissipater were experimented.Through the analysis and retouching of the background noise,the acoustic wave was reflected,intervened and spliced with classic sonic theory,The effect of reduce noise was evaluated.The suitable form of energy dissipater was chosen.The data requested for the engineer construction were offered.更多还原