【摘要】 运用统计能量分析方法SEA(statisticalenergyanalysis)建立了高架轻轨噪声预测理论模型 ,并在分析车轮、钢轨、支垫层和桥梁构件的噪声辐射状况的基础上 ,根据振动与辐射声能的关系 ,进行仿真计算 ,得出其辐射噪声声级 .然后 ,对计算结果进行分析 ,得出高架轻轨噪声控制的有效途径 ,这不仅为轻轨噪声预测提供了新方法 ,还将对今后轻轨噪声控制的继续研究起到促进作用更多还原

【Abstract】 Based on the principle of the statistical energy analysis (SEA), a theoretical model of SEA applied to the prediction of the noise of elevated light rail transit has been set up. In addition, by analyzing noise from wheels, rails, padding and bridges part, and considering the relationship between vibration and production of noises of the transition system, the sound level radiating from the transit system by means of simulation calculating can be got. After analyzing the calculated results, many effective conclusions about the control of the noise in elevated rail transit system are achieved, which not only provides a new method of prediction of vibration and noise in city elevated rail transit system, but also promotes the furture research of the control of light rail noise.更多还原