双色球复式计算

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公路声屏障的工作原理是什么

来源:首金交通安全设施      作者:声屏障厂家      发布时间:2019-09-30       浏览量:267

     公路声屏障的工作原理是什么

    GENJUJIHESHENGXUEYUANLI,SHENGYINZAISHIWAISHIYANZHIXIANCHUANBODE,RUGUOZAISHENGYUANHEJIESHOUDIANZHIJIANCHARUYIDAOQIANGTIHUOZHEJUYOUYIDINGGESHENGLIANGDEWUTIZUDANGSHENGYINDECHUANBOLUJING,SHIDEZAIJIESHOUWEIZHIKANBUDAOSHENGYUAN,JIESHOUBUDAOZHIDASHENG,ZEZAIJIESHOUDIANDESHENGYAJIJIUHUIMINGXIANJIANGDI,ZHEIJIUSHISHENGPINGZHANGGESHENGYUANLI。(YOUXIESHIHOUWOMENWUFAJIANGZAOSHENGYUANWANQUANFENGBIQILAI,YOUXUYAOJIAODIDEZAOJIAHUODELIXIANGDEJIANGZAOXIAOGUO。)

双色球复式计算   YOUYUSHENGBOZAIYUDAOZHANGAIWUSHIHUIFASHENGFANSHEXIANXIANG,GUZAISHENGYUANHEJIESHOUZHEZHIJIANCHARUMISHIDEPINGZHANGHUIJIANGDIZAOSHENG。

  由于声源具有波动特性,所以总有一部分声波从声屏障的顶端绕射过去,这使得公路声屏障双色球复式计算的衰减受到了一定的限制。

  CHARUSUNSHISHIZAISHENGYUANHEJIESHOUDIANZHIJIANCHARUYIGESHENGPINGZHANGHOU,ZAIJIESHOUDIANCHUJIESHOUDAODESHENGYAJIYUMEIYOUSHENGPINGZHANGSHISHENGYAJIDECHAZHI。

双色球复式计算  KAOLVDAOQICHEFADONGJIDEAJIQUANPINPUZHUYAOYI250~2000HzZUIWEITUCHU,YINCIJIAOTONGZAOSHENGASHENGJIDESHUAIJIANLIANGDAZHISHANGKEANSHENGPINGZHANGZAI500HzSUOCHANSHENGDESHUAIJIANLAIQUEDING。

  ZAIGUANCHAZHERHEPINLVWEI500HzDEDIANSHENGYUANZHIJIANFANGZHIYIGEGAOWEIhDESHENGPINGZHANGSUOCHANSHENGDESHUAIJIANLIANG,SHIYONGYUdYUANDAYUrDEQINGKUANG。RUd=r。 

 

双色球复式计算  SHENGYUANJULIrHEJIESHOUZHEJULIdJUNDAYUPINGZHANGGAODUh;

双色球复式计算  JULIrBIdDADEDUO,HUOZHEdBIrDADEDUO;

双色球复式计算  PINGZHANGJIAOBO,QIEBIAOMIANSHIFANSHETI;

双色球复式计算  PINGZHANGZHANGDUZHISHAOBIrHUOdZHONGRENYIGEDA4BEIYISHANG。

双色球复式计算  DUIYUYIGEWUXIANZHANGQIECAILIAOGESHENGLIANGZUGOUDADESHENGPINGZHANG

  SHIZHONG,ΔLWEICHARUSUNSHI(dB);dWEISHENGCHENGCHA,d=a+b-c(m);fWEIPINLV(Hz)。

双色球复式计算  CONGSHANGSHIZHONGKEYIKANCHU:

双色球复式计算  JIBIANSHENGCHENGCHAHENXIAO,YEDAGAIYOU5dBDECHARUSUNSHI。

  CONGLILUNSHANGJIANG,SHENGPINGZHANGDECHARUSUNSHIYEJIUYUEDA,DANBUHUIDAYU24dB。 

双色球复式计算  ZAISHENGYINGQU,SHENGPINGZHANGDEZUOYONGJIAOMINGXIAN;ERZAIZHAOMINGQU,SHENGPINGZHANGJIHUBUQIZUOYONG。

  MEIYOUKAOLVSHENGYINCONGSHENGPINGZHANGTOUSHEDEYINGXIANG,YIBANQINGKUANG,ZHIYAOSHENGPINGZHANGDETOUSHESUNSHIGAOYUCHARUSUNSHI10dB,QIYINGXIANGKEYIHULVEBUJI,FOUZEJIANGHUIJIANGDISHENGPINGZHANGDUISHENGYINDESHUAIJIANXIAOGUO。

双色球复式计算  ZAISHENGPINGZHANGWUXIANZHANGDETIAOJIANXIACHENGLI,JISHENGYINZHICONGPINGZHANGDEDINGDUANRAOSHE,ERBUCONGSHENGPINGZHANGDELIANGCERAOSHE,ERSHIJISHANGSHENGPINGZHANGBUKENENGSHIWUXIANZHANG。

  DUIYUXIANSHENGYUAN,RUJIAOTONGZAOSHENG,SHENGPINGZHANGDEZHANGDUYINGMANZU:

  SHIZHONG,lWEISHENGPINGZHANGDEZHANGDU;DWEIJIESHOUDIANZHISHENGPINGZHANGDECHUIZHIJULI;θWEIJIESHOUDIANZHISHENGPINGZHANGLIANGDUANLIANXIANZHIJIANDEJIAJIAO。

双色球复式计算  YINGXIANGSHENGPINGZHANGCHARUSUNSHIDEYINSUZHONGDUO,RUSHENGPINGZHANGDEXIANGDUIWEIZHI、GAODUYIJIXINGSHIDENG。

  SHENGPINGZHANGDEWEIZHIYINGJINLIANGKAOJINSHENGYUAN,ZHEIYANGYOULIYUKUODASHENGYINGQU,CONGERTIGAOSHENGSHUAIJIAN。

双色球复式计算  SHENGPINGZHANGYUEGAO,QIYINYINGQUYUEDA,DUISHENGYINDESHUAIJIANZUOYONGYEJIUYUEDA,ZHEISHIXIANERYIJIANDE。

双色球复式计算  SHENGPINGZHANGDEXINGSHIDUISHENGSHUAIJIANYEYOUJIAODADEYINGXIANG。


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