KS B ISO TR 7849-2007 Acoustics-Estimation of airborne noise emitted by machinery using vibration measurement《声学 振动测量仪器发射的气载噪音评估》.pdf

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1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS B ISO TR 7849 KS B ISO TR 7849: 2007(2012 ) 2007 11 23 http:/www.kats.go.krKS B ISO TR 7849: 2007 : ( ) ( ) ( ) : (http:/www.standard.go.kr) : :2007 11 23 :2012 12 29 2012-0837 : : ( 02-509-7294) (http:/www.kats.go.kr). 10 5 , . KS B ISO TR 7849: 2007 (20

2、12 ) Acoustics Estimation of airborne noise emitted by machinery using vibration measurement 1987 1 ISO/TR 7849, Acoustics Estimation of airborne noise emitted by machinery using vibration measurement , . ISO( ) . ISO . . , ISO . ISO . . 1: 2: 3: ISO . 1 2 3 . 3 . ISO/TR 7849 ISO/TC 43, . 2 . 0 0.1

3、2 1979 ISO/TC 43/SC 1 . . 1982 , , KS B ISO TR 7849: 2007 2 . TC 43 . 2 . , . , . 0.2 . ( ) ( ) . . , . ( , ), 0.3 . , . 0.3 0.3.1 PS . PS c S2Sv c : : c : 2v : SS SS: KS B ISO TR 7849: 2007 3 : c , 2v , SS, . 0.3.2 2v r.m.s. , . 2v . . 7.2 7.3 . . . . a) b) ( , ) c) . 0.3.3 SS ( ). , , , , . SS ( )

4、. 0.3.4 . a) . b) c) . ( ). , . . , , . d) ( ) . KS B ISO TR 7849: 2007 4 a) b) . 0.3.1 . 2SSvcSP = PS KS A ISO 3741, ISO 3742, KS A ISO 3743, KS A ISO 3744, KS A ISO 3745 KS A ISO 3746 . c, SS, 2v . c) . a) b) . (8.3.2) (f ) , . 1 . PS . 1 . KS A ISO 3741, ISO 3742, KS A ISO 3743, KS A ISO 3744, KS

5、 A ISO 3745 . . . . D . E . . 2 . . ( ) . KS A ISO 1683: 2003, KS A ISO 3741, KS B ISO TR 7849: 2007 5 KS A ISO 3743( ), KS A ISO 3744, KS A ISO 3745, ISO 3742, Acoustics Determination of sound power levels of noise sources Precision methods for discrete-frequency and narrow-band sources in reverber

6、ation rooms ISO 3748, Acoustics Determination of sound power levels of noise sources Engineering method for small, nearly omnidirectional sources under free-field conditions over a reflecting plane1)ISO 5348, Mechanical vibration and shock Mechanical mounting of accelerometers1)IEC 60225, Octave, ha

7、lf-octave and third-octave band filters intended for the analysis of sounds and vibrations IEC 60651, Sound level meters 3 . 3.1 . . 3.2 a) b) 3.3 (r.m.s.) v . . r.m.s. s . fvs2= (1) . r.m.s. a . a 2 f v(2) 3.4 , Lv ( ) . 1) KS B ISO TR 7849: 2007 6 202lg10vvLv= (3) v : r.m.s. v0 : 510 8m/s( 50 nm/s

8、) . 1 v0 , (KS A ISO 1683 ). 2 La Lv F . 3.5 . 2SSvcSP = (4) PS : c : : c : SS : ( : 3.8 ) 2v : SS r.m.s. , PS 2v . 3.6 10 log . 3.7 LW 10 . , 1/3 . ( : 1 pW). LWS . 0Slog10PPLWS= (5) PS: P0: ( 10 12 W 1 pW) 3.8 . SS . KS B ISO TR 7849: 2007 7 3.9 . . 3.10 4 4.1 , . 4.2 ( ) . . . a) 1 . A- A- . b) (

9、: ), . . A- . c) . A- . 5 5.1 . . ( , ). 5.2 . KS B ISO TR 7849: 2007 8 . , . . 1/3 , 1 dB . , ( ). . , . 0.2ScLh2/f, (13) . 5.3 r.m.s. . IEC 60651 0 1 , . IEC 60225 . 5.4 , . , ( F ). 5.5 . 9.81 m/s2 . 2 . ( v0: 510 8m/s) Lv( ) . 22log200fvaLv= (6) 2m/s81.9=a f 100 Hz 106.9 dB . 6 , KS B ISO TR 784

10、9: 2007 9 6.1 , 6.2 6.4 . . 6.2 , . . . . . 6.3 . ( ) , ( B ). 6.4 . (6.1 ). a) b) a) c) ( ) d) e) 7 7.1 7.2 7.8 , . . , . 7.2 7.2.1 KS B ISO TR 7849: 2007 10 7.2.2 7.2.4 . (7.2.4 ) ( , ) . 7.2.2 , , . 7.2.3 SS/N N . . 7.2.4 . i SSi (8.2 ). 7.3 1 . 1 SS m2 SS1 1 SS10 SS 10 10 20 20SSS( S0 1 m2) 1 . , . vL (8.2 ), 1 dB . 7.4 (5.2 ) . (A.2 ) . KS B ISO TR 7849: 2007 11 7.5 Lv . Lv F La (5.4 ) . S( ) . . 200 Hz 10 . . ( , E ) , (6.2 ) (8.1 ) . ( ) 8. . 7.6 . ISO 5348 . A . 7.7 (5.2 ). , B . . 7.8 D 8.3.2 . 8 8.1 2 . KS B ISO TR 7849: 2007 12 2 : dB ( )

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