環(huán)境噪聲預測模式的探討與軟件設計.pdf

1、合肥工業(yè)大學碩士學位論文環(huán)境噪聲預測模式的探討與軟件設計姓名：廖俊彥申請學位級別：碩士專業(yè)：環(huán)境工程指導教師：李志遠20080501r盯1’^一●’lne11iscUssionolenvironmentalnolsepredictin2modeandthedesignofthepredictingsoftAbstract：Withthefastdevelopmentofurbanindustryandtraffic，noisehasbe

2、enaseriousenvironmentalproblemwhicheffectspeople’Slife，studyandhealthThenoisepollutionproblemhasbeenattachedincreasingimportanceThecalculationofenvironmentalnoiseisveryimportantandpracticableInhispaper，wediscusstheprinci

3、pleoftheoutdoorpointsourceaswellasroadtrafficandrailwaynoiseandairplanenoisepredictingmodethatisoftenusedinenvironmentalnoiseimpactassessmentThenweintroducethemodeincludinginthepredictingsoftandthefunctionaswellasuseofth

4、eeachmodeOnthisbase，wetaketheBaoAnconverterstationforexampleofoutdoorpointsourcepredictingmode，whileestablishingpropersoundbroadcastmodeltopredicttheenvironmentalnoisebymeansofoctavesoundpressurelevelandAweightedsoundpre

5、ssurelevelTheresultswillbecomparedwiththeresultswhichispracticallymeasuredandresultspredictingbytheB&KPredictorType7810softTheresultsshowthattheprecisionofthetwopredictingmethodsisbothrelativelyhigh，andtheresultspredicti

6、ngbyoctavesoundpressurelevelismoreprecisethanbyAweightedsoundpressurelevelAsthepartofthehearablenoisepredictingsoftcampaignin800kVDCsystemwhichissubordinatetoUHVpowertransmissionandtransformationcampaignanddemonstrationp

7、rojectsupportedbyOutlineoftheEleventhFive—YearPlan，itisofgreatsignificancetotheimplementoftheprojectInthediscussionofthetheoryandtheapplicationofthepracticalissues，wefindtheinadequateinthepredictingmodesabove，andwehavema

8、deseveralamendmentsonthemtomakethepredictionmorepreciselyFortherespectswhichcannotbesolvedatthemoment，webringforwardthemasissuesKeyword：EnvironmentalNoise；prediction；pointsoundsource；roadtrafficnoise；railwaynoise；airplan