内燃机车水阻试验复合声屏障的研究与设计

内燃机车在进行水阻试验时会产生高强噪声 ,对周围的环境产生了严重的噪声污染。使用全封闭式降噪方法时 ,会获得较好的降噪效果 ,但所引起的机车散热以及投资增加使得人们试图去寻求更简洁、投资更省、效果又能满足当地环保部门要求的方法。通过对水阻试验噪声的传播分析和计算 ,提出了一种复合声屏障的设计方案 ,并取得了良好实效。

Study and Design on the Compound Sound Burrier for Power Loading Test of the Internal Combustion Locomotive

Internal-combustion locomotive will produce noise of high intensity and make serious noise pollution to the ambient environments when the power load test is being carried out.Fully close method could obtain good noise-reduction effect,but the locomotive cooling problem and the relatively huge investment have people try to find the new way that is simpler and cheaper and also meets the requirements of the locals environment protection departments.This article analyzed and computed noise transmission in the power load test,and a design scheme based on compound sound barrier was brought forward which has achieved the satisfied effect in a real application.