国防交通工程与技术
國防交通工程與技術
국방교통공정여기술
TRAFFIC ENGINEERING AND TECHNOLOGY FOR NATIONAL DEFENCE
2012年
5期
72-74
,共3页
声强%声功率%装载机%噪声源%识别
聲彊%聲功率%裝載機%譟聲源%識彆
성강%성공솔%장재궤%조성원%식별
sound intensity%sound power%loader%noise sources%identification
介绍了声强法测定工程机械辐射噪声的优点与其原理,依据GB/T16404—1996标准,应用P—P声强技术对ZL50G型装载机进行了测试,得到主要噪声源和整个装载机的噪声辐射声功率级,并对其噪声辐射特性进行频谱分析,识别出主要噪声频率构成,为装载机辐射噪声的测试与防治提供了重要依据。
介紹瞭聲彊法測定工程機械輻射譟聲的優點與其原理,依據GB/T16404—1996標準,應用P—P聲彊技術對ZL50G型裝載機進行瞭測試,得到主要譟聲源和整箇裝載機的譟聲輻射聲功率級,併對其譟聲輻射特性進行頻譜分析,識彆齣主要譟聲頻率構成,為裝載機輻射譟聲的測試與防治提供瞭重要依據。
개소료성강법측정공정궤계복사조성적우점여기원리,의거GB/T16404—1996표준,응용P—P성강기술대ZL50G형장재궤진행료측시,득도주요조성원화정개장재궤적조성복사성공솔급,병대기조성복사특성진행빈보분석,식별출주요조성빈솔구성,위장재궤복사조성적측시여방치제공료중요의거。
The principle and advantages of the sound-intensity-based method for the determination of the radiation noise of engi- neering machinery are introduced in the paper. In the light of the standard of GB/T 16404-1996, the p-p sound intensity tech- nique is used to test the radiation noise of ZL50G type of loader, with the power degree of the main noise sources and the radia- tion noise of the whole loader obtained, the characteristics of the noise in radiation spectrum-analyzed, and the main frequencies of the noise identified. The paper provides an important basis for the tests on and the prevention of the radiation noise of the loader.
