KS B ISO 13347-4-2005 Industrial fans-Determination of fan sound power levels under standardized laboratory conditions-Part 4:Sound intensity method《工业风扇 标准化实验室条件下风扇声功率级的测定 第4部分 声强.pdf

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1、 ?G?G?G?GKS B ISO 13347 4G?G?G?G ?G?G?G G?G?G ?G?G G?G ?G 3 0 y J 3 0 D h ;C (j D $; KS B ISO 13347 4: 2005 2005 12 29 B ISO 13347 4: 2005 ( ) ( ) ( ) ( ) : : 2005 12 29 2005 1145 : : ( ) ( 02 509 7287 90) . 7 5 , .B ISO 13347 4: 2005 1 1. 1 2. 1 3. 1 4. 3 5. 10 6. 14 7. 15 A() 17 B() 18 C() 19 21 2

2、2 i ICS 17.140.20; 23.120 KS B ISO 4 : 13347 4: 2005Industrial fans Determination of fan sound power levels under standardized laboratory conditions Part 4: Sound intensity method 2004 1 ISO 13347 4 Industrial fans Determination of fan sound power levels under standardized laboratory conditions Part

3、 4: Sound intensity method . 1. ISO 5801 KS B ISO 13349 . , . . , , , . ISO 5801 KS B ISO 13347 2 . 2. . . KS A ISO 5136 KS A ISO 9614 1 1 : KS A ISO 9614 2 2 : KS B ISO 13347 1 1 : KS B ISO 13347 2 2 : KS B ISO 13349 KS C IEC 61094 2 2 : ISO 5801 Industrial fans Performance testing using standardiz

4、ed airways 3. 3.1 KS B ISO 13347 1 . . 3.2 ( Reference Sound Source: RSS) RSS B ISO 13347 4: 2005 , . RSS RSS , . RSS KS B ISO 13347 1 . 1 , (probe) 2 . . . 1 1/3 Hz dB 50 80 100 4 000 5 000 8 000 10 000 12 500 1.5 1.0 1.5 2.0 3.0 3.3 . . , KS C IEC 61094 2 0.5 dB . KS C IEC 61094 2 , . , 1 . , . ,

5、. , . 180 , . . 2 2 . 2 . 2 Hz dB 63 125 250 4 000 8 000 1.5 1.0 1.5 3.4 , KS B ISO 13347 1 (RSS) . 3 . 2 B ISO 13347 4: 2005 3 Hz dB 63 125 25 500 1 000 4 000 8 000 5.0 3.0 2.0 1.5 2.5 3.5 KS A ISO 9614 1 . , KS A ISO 9614 1 . . , KS A ISO 9614 1 . . , . . , . . RSS . , RSS . KS B ISO 13347 2 . KS

6、B ISO 13347 2 . 4. 4.1 4.1.1 , (KS B ISO 13347 2 ) . , . , . 6.2 . 4.1.2 , . , . , . . A . 4.1.3 , . 3 B ISO 13347 4: 2005 , . . , . KS B ISO 13347 2 . , . A . 4.2 4.2.1 , . . ( 1 ). (LWm LW) . 2 ( 2 3 ). (LWmi LWi) (LWmo LWo) . m . m . . 4.2.2 ISO 5801 . 4.2.3 . . , . . . , . , . , , . 4 B ISO 1334

7、7 4: 2005 1 2 1 ( A: , B: ) 4.2.4 2 3 ISO 5801 . , . 2 , ISO 5801 , . 4.2.5 (A: , ) 1 . EWdB A: 0 LW(A, tot) . , . , . 5 B ISO 13347 4: 2005 a) A: , b) B: , c) C: , d) D: , 1 4 2 5 3 (common part) a . 2 6 B ISO 13347 4: 2005 4.2.6 2 a) d) . EWdB A: O LW(A, in) B: O LW(B, in) C: EiLW(C, in) D: EiLW(D

8、, in) . a) . . b) , . c) . d) , . 7 B ISO 13347 4: 2005 a) A: , b) B: , c) C: , d) D: , 1 4 2 5 3 a . 3 8 B ISO 13347 4: 2005 4.2.7 3 a) d) . EWdB A: O LW(A, out) B: O LW(B, out) C: EiLW(C, out) D: EiLW(D, out) . a) . . b) , . c) . d) , . 4.3 , . . 4 , , . 4 C . C . 3 m/s . . . RSS . , . 10 % , . 4

9、. , . 4.4 (RSS) , 5.2 RSS . , 4 RSS . , RSS . , RSS 4 9 B ISO 13347 4: 2005 . RSS , (s) . S (surface as shown) 2 r2 (circumscribing rectangular parallelepiped) 12 r21 3 2 4 a) S I II (surface as shown) 2 r2(r 1) 2 r2(r 1) (circumscribing rectangular parallelepiped) 4 r(3r 21) 2 r(3 21)1 5 I 2 ( I II) 6 II 3 7 4 b) 5. 5.1 / , . , 10 4 . , KS A ISO 5136 . , B ISO 13347 4: 2005 . 5.2 . . . a) (KS A ISO 9614 1 ) b) (KS A ISO 9614 2 ) , . . 4 a) , z . 4 b) , (半 ) z ( I) ( II) . I , RSS ( , ) . II , l z RSS , (半 ) 2 . , RSS

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