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隔音墙可以有效的阻隔直达声的传播

最后更新时间:2020/1/5 12:28:31   作者:   已经有79个人浏览并咨询。

  隔音墙鼎盛彩票app可以有效的阻隔直达声的传播

  GEYINQIANGSHIGEYINSHEBEIZHONGBIJIAOCHANGJIANDEYIZHONG,TAYIQIDUTEDEXIAOGUOBEIHENDUORENSUOJIESHOU,XIAMIANLAIXUEXIXIAGEYINQIANGDEXIANGGUANZHISHI。

  声波在传播过程中,遇到声屏障时,就会发生反射、透射和绕射三种现象。通常我们认为声屏障能够阻止直达声的传播,并使统射声有足够的衰减,而透射声的影响可以忽略不计。因此,声屏障的隔声效果一般可采用减噪量表示,它反映了声屏障上述两种屏蔽透声的本领。在声源和接收点之间插入一个声屏障,设屏障无限长,声波只能从屏障上方绕射过去,而在其后形成一个声影区,就象光线被物体遮挡形成一个阴影那样。在这个声影区内,人们可以感到噪声明显地减弱了,这就是声屏障的减噪效果。

  GEYINQIANGDEGEYINXIAOGUO,GAODUYUZHANGDUSHILIANGGEGUANJIAN,GEYINQIANGZHIYAONENGZUGEDAOLUHESHOUTIDESHIXIAN,ZHISHAOJIUNENGJIANSHAO5FENBEIDEYINLIANG,ERQIEMEIZENGJIA1MI,NENGJIANSHAO1.5FENBEI。ERZHANGDUFANGMIAN,BUNENGGENSHOUTIDEKUANDUGANGGANGHAO,BIXUYUZUIJINSHOUTIDECHUIZHIJULIWEIZHUN,XIANGZUOYOULIANGBIANYANSHEN4BEIJULIDEZHANGDU,CAINENGFANGZHISHENGYINCONGLIANGDUANLIUJINSHOUTI。



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