大众噪音测试流程 Volkswagen noise measurement procedure.pdf

大众噪音测试流程 Volkswagen noise measurement procedure.pdf

  1. 1、本文档共11页,可阅读全部内容。
  2. 2、有哪些信誉好的足球投注网站(book118)网站文档一经付费(服务费),不意味着购买了该文档的版权,仅供个人/单位学习、研究之用,不得用于商业用途,未经授权,严禁复制、发行、汇编、翻译或者网络传播等,侵权必究。
  3. 3、本站所有内容均由合作方或网友上传,本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺!文档内容仅供研究参考,付费前请自行鉴别。如您付费,意味着您自己接受本站规则且自行承担风险,本站不退款、不进行额外附加服务;查看《如何避免下载的几个坑》。如果您已付费下载过本站文档,您可以点击 这里二次下载
  4. 4、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等,请点击“版权申诉”(推荐),也可以打举报电话:400-050-0827(电话支持时间:9:00-18:30)。
查看更多

SubscribetoDeepLPrototranslatelargerdocuments.

Visitwww.DeepL.com/proformoreinformation.

DRAFT:TirenoisemeasurementspecificationVWGroup

1.Purpose

1.1.Thistestprocedurespecifiesaprocedurewithwhichtheoveralltirenoise(consistingoftirerolling

noiseandaccelerationinfluence)canbeassessedonadefinedroadsurface.Thistestofthetire

componentisnecessaryinordertobeabletoevaluateandlimitthecontributionofthiscomponentto

theoverallvehicleduringthetypetestoftheexteriornoise.

1.2.Duetoexpectedfurtherreductionsinoverallvehiclenoiseemissions,tirenoisewillbecomethe

dominantsourceofoverallvehiclenoise.Thisresultsintheneedforearlyanddetailedknowledgeof

tirenoise.

1.3.Theassessmentcriteriaare:

-Thepass-bynoiseaccordingtoUNR51.03(measurementmethodforvehiclesofcategoryM1,N1

andM2withupto3,500kggrossvehicleweight),aswellasthedraftofUNR51.04

-Rollingnoiseinthespeedrangeoftheabove-mentionedpass-bymeasurements(20to100km/h)

2.Areaofapplication

2.1.Thistestmethodisvalidfordevelopmentmeasurementsaswellasreleasetestsand

seriesmonitoringoftires.

2.2.ThemeasurementsarecarriedoutbytheCompleteVehicleAcousticsdepartmentorbya

serviceproviderorsuppliercommissionedbythisdepartment.

2.3.Theexactscopeofmeasurementisagreedbetweentherespectivepartiesinvolvedintheorder.

3.Definitionofterms

3.1.Tiretester

Thetiretesterisavehiclethatisdesignedtomeasuretires.Ideally,itissoquietthattheresultsofthe

tiremeasurementsarenotaffected.

3.2.Vehicleresidualnoise

Theresidual

文档评论(0)

NVH小白 + 关注
实名认证
内容提供者

NVH小白的日常文档

1亿VIP精品文档

相关文档