KS R ISO 6798-2006 Reciprocating internal combustion engines-Measurement of emitted airborne noise-Engineering method and survey method《往复式内燃机 辐射的空气噪声测量 工程法和简易法》.pdf

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KS R ISO 6798-2006 Reciprocating internal combustion engines-Measurement of emitted airborne noise-Engineering method and survey method《往复式内燃机 辐射的空气噪声测量 工程法和简易法》.pdf_第1页
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1、 KSKSKSKS SKSKSKS KSKSKS SKSKS KSKS SKS KS 2006 12 29 http:/www.kats.go.krKS R ISO 6798 KS R ISO 6798: 2006 (2011 ) R ISO 6798: 2006 : ( ) ( ) () ( ) : (http:/www.standard.go.kr) : :2006 12 29 :2011 12 27 2011-0713 : : ( 02-509-72713) (http:/ www.kats.go.kr). 10 5 , . ICS 17.140.20; 27.020 KS R ISO

2、6798: 2006(2011 )Reciprocating internal combustion engines Measurement of emitted airborne noise Engineering method and survey method 1995 1 ISO 6798 Reciprocating internal combustion engines Measurement of emitted airborne noise Engineering method and survey method . 1. 1.1 , . , A 1/3 . . 1.2 2 (

3、) ( 1 ). 1.3 dB 3 dB , 2 dB 7 dB 3 ( ) ( 2 ). (“ engineering” ) (“ survey” ) . 1.3 KS R ISO 3046 1 , . 1.4 . A . 1.5 3 . 3 , ( , 250 Hz ) “ ” . . 1. , , 3 . 2. 3 , , . 3 R ISO 6798: 2006 2 ( , ). 1 (1) KS A ISO 3744 (2 ) 15 m A 1/3 , , KS A ISO 3746 (3 ) . : . A , (1) ISO 2204 2 : dB 2 3 (1) 1.3 1.3

4、 3 3 2 2 7 7 (1) / . . 3 : dB 31.5 63 Hz(1) 125 Hz 250 500 Hz 1000 4 000 Hz 8 000 Hz A 2 5 3 2 1.5 2.5 2 5 3 4 (1) 2. . . KS A ISO 3744 KS A ISO 3745 KS A ISO 3746 KS R ISO 3046 1 1: , R ISO 6798: 2006 3 KS R ISO 3046 3 3 : IEC 60225: 1966 Octave, half octave and third octave band filters intended f

5、or the analysis of sounds and vibrations IEC 60651: 1979 Sound level meters IEC 60804: 1985 Integrating-averaging sound level meters 3. KS A ISO 3744 KS A ISO 3746, . 3.1 (airborne noise) , ( , , , , ) 1. . ( ), 2. / , . 3. , (KS A ISO 3744 KS A ISO 3746) . 3.2 (background noise) , 4. 4.1 , . 4.1.1

6、KS A ISO 3744 A . , (4.2 ). KS A ISO 3744 A . 4.1.2 KS A ISO 3746 A . 4.2 4.2.1 , 3 6 dB , 10 dB . 2 6 dB . 2 R ISO 6798: 2006 4 . 4.2.2 , A A 3 dB . 3 dB . 3 A . . 4.3 . . 5. KS A ISO 3744 ( IEC 60651 1, IEC 60804 1 ). IEC 60225 2 . 6. 6.1 , (KS R ISO 3046 1 ) . , (KS A ISO 3744 KS A ISO 3746) . (3

7、.1 ). (3.1 ). . . , ( ). . . . . 6.2 KS R ISO 3046 1 . 45 . ISO ISO , ISO ISO . R ISO 6798: 2006 5 , 9.1 e), f) g) . , , . KS R ISO 3046 1 KS R ISO 3046 3 . 10 % . 7. 1/3 7.1 (reference box) . ( 1 ). , , . , . 7.2 S1 , S( ) , d( ) . 7.3 d . , 1.0 m . 0.5 m d 1.0 m . KS A ISO 3744 A KS A ISO 3746 A d

8、 1.0 m . 7.4 7.4.1 ( , ), . 4 . 4 l1m l2m l3m 2 2 2.5 9(5) 1 2 4 2.5 12 2 4 2.5 15 3 (1) (1) 2.5 19 4 (1) . 15 . 7.4.1.1 , . 5 dB . . . R ISO 6798: 2006 6 LW KS A ISO 3745 7.7.1.2( ) . 7.4.1.2 1 dB . . . 7.4.1.3 ( , ) , . 9.4 b) . 2 4 KS A ISO 3744 KS A ISO 3746 . , 0.5 dB(A) . 7.4.2 l1 l2 2 m, l3 2

9、.5 m , 1 9 1 9 . 1 4 (l3 d)/2 , 5 9 (l3 d) . 1 4 , 9 5 . 5 ( 1 1, 2, 3, 4 9) A 9 LWA ( LWA 0.7 1.8 dB .). 5 LWA . LWA . LWA 0.5 dB(A) . 7.4.3 2 l1 4 m, l3 2.5 m , 2 12 1 12 . 1 . 7.4.2 . 7.4.4 l1 4 m, l3 2.5 m , . 3 1 15 . 7.4.2 . 7.4.5 2.5 m , 4 19 1 19 . 1 8 (l3 d)/4 . 3(l3 d)/4 9 16 . 17 19 (l3 d

10、) . R ISO 6798: 2006 7 d 7.3 . 1 9(5) ( , l1 2 m, l2 2 m, l3 2.5 m) d 7.3 . 2 12 ( , 2 m l14 m, l3 2.5 m) d 7.3 . 4 19 ( , 2.5 m) 7.5 7.5.1 . ( , , , ) . R ISO 6798: 2006 9 . . 2 m . . 7.5.2 IEC 60651 , “S” . “S” 3 dB , (steady) , . (non steady) IEC 60804 . . 7.5.3 6. A , , 1/3 ( 3 ) , . . 4 . 7.5.4

11、 A , , 1/3 ( 3 ) . . . (1.5 2. ). . . 8. 8.1 A 1/3 5 . R ISO 6798: 2006 10 5 : dB , 3 4 5 3 2.2 1.7 6 7 8 9 10 10 1.3 1 0.7 0.6 0.5 0 8.2 A 1/3 pAL ( 8.1 ) A 1/3 Lpi . KNLNiLppi=11.0A 101lg10 (1) ApL : A 1/3 ( : 20 Pa) Lpi: , i A 1/3 ( : 20 Pa) N: K: . K (4.1 ). K 0 2 dB , 0 7 dB . 7.4.2 5 , . A11.0A 101lg10WNiLp LKNLpi=8.3 A 1/3 LWA . LWA ApL +10 lg(S1/S0)(2) LWA: ( : 20 Pa) S1: 4(ab bc ca) . , ( : S0 1 m2) R ISO 6798: 2006 11 a21l d b22l d c l3 d l1, l2, l3: 8.4 (8.1 ) K (8.2 ) .

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