1、 KS I ISO 9611KSKSKSKSSKSKSKS KSKSKS SKSKS KSKS SKS KS KS I ISO 9611: 2007(2012 ) 2007 7 6 http:/www.kats.go.krKS I ISO 9611: 2007 : ( ) ( ) ( ) : (http:/www.standard.go.kr) : :2007 7 6 :2012 12 29 2012-0837 : : ( 02-509-7294) (http:/www.kats.go.kr). 10 5 , . KS I ISO 9611: 2007 i 1996 1 ISO 9611, A
2、coustics Characterization of sources of structure-borne sound with respect to sound radiation from connected structures Measurement of velocity at the contact points of machinery when resiliently mounted . KS I ISO 9611: 2007 (2012 ) Acoustics Characterization of sources of structure-borne sound wit
3、h respect to sound radiation from connected structuresMeasurement of velocity at the contact points of machinery when resiliently mounted 1 1.1 1/3 ( , ) . . . 1 H . A E . . . , . . a) b) c) 1.2 f1 f2 . f1 . KS I ISO 9611: 2007 2 . A f1 . f2 . B f2 . 2 , 20 40 Hz f1 . 3 1 4 kHz f2 . 1.3 . 1.4 6 ( ).
4、 , , ( F ). 1.5 . . , f1 f2( A B ) . 2 . . ( ) . ISO 5348: 1998, Mechanical vibration and shock Mechanical mounting of accelerometers IEC 60651, Sound level meters Electromagnetic and electrostatic compatibility and test procedures IEC 60804 Ed. 2.0 b: 2000, Integrating-averaging sound level meters
5、IEC 61260 Ed. 1.0 b: 1995, Electroacoustics Octave-band and fractional-octave-band filters 3 , . 3.1 KS I ISO 9611: 2007 3 3.2 ( 2 ) 3.3 3.4 3.5 , Lv 202lg10vvLV= dB (1) v : r.m.s., , . v0: (510 8m/s)1) . 3.6 , L 202lg10L= dB (2) : r.m.s., 0: (510 8s 1)1) . 3.7 , r . 4 (ISO 3534 1 KS A ISO 5725 1) 3
6、.8 1) 10 9m/s 10 9s 1 510 8m/s 510 8s 1 34 dB / . KS I ISO 9611: 2007 4 / (ISO 3534 1 KS A ISO 5725 1). 3.9 . 5 (ISO 3534 1 KS A ISO 5725 1) 3.10 / . 4 1/3 1/3 ( , )( 1 ). 5 5.1 (5.2 ). 5.3 . , , , 1 . 10 dB . , . D . 6 , (: 10 kW ) , . f1 . 5.2 . f1 (7. A ). f1 . . 7 , . . G . KS I ISO 9611: 2007 5
7、 . 8 . , (7.1 G ). 5.3 , (: , , ). . . “ ” D . 1 5.4 5.4.1 . Lvz Ly , 2 , , 3 . 0.5 Dx 1.5 Dx . Dx x . . z . y . 2 3 A . A ( , ). Lx , 2 3 z 90 . (5.3 ) KS I ISO 9611: 2007 6 2 Lvz Ly 3 Lvz Ly Lvx Lvy x y . . a) A 0.25 Dx 0.75 Dx 0.25 Dy, 0.75 Dy . , b) 3 Lvx Lvy Lz . A , , C . ISO 5348 . 5.4.2 KS I
8、 ISO 9611: 2007 7 . . Lvz . ( 4 ). xDh51yDy 2yDz2012 3 . . yDz2013 Lvx Lvy ( x y y x). 4 Lvz KS I ISO 9611: 2007 8 5 Lvy A . xD21 yD21 9 . , B , f2 . f2 . 5.5 , . , , . . a) b) a) c) ( ). d) e) f) g) 6 6.1 . ( 4 % ). 1 (x1, y1, z1) 2 (x2, y2, z2) 3 (x3, y3, z3) KS I ISO 9611: 2007 9 . , . , 10 % . (
9、1.2 ), “ ” . 1/3 1 dB . 1 dB . , . 20 dB . 6.2 , . (FFT) . . FFT . 0.1 , . , . 6.3 , IEC 60651 IEC 60804 0 1 . IEC 61260 . , 1/3 ( ) . r.m.s. , Lv L . 6.4 , ( ). , . , . . 10 ( F), . 7 KS I ISO 9611: 2007 10 7.1 , A B f1 f2 . , 1/3 ( , ) . 2 dB . 1/3 ( ) . , . , . ( , 7.2 ) . 10 dB . 5.1 7.2 ( ) ( 6
10、 ). az a1 a2 . az 0.5(a1 a2) (3) vz faafaafavzz 4)(2)(5.022121+=+= (4) f . 11 (4) . , (4) 1/3 0.2 dB 0.8 dB . , (4) 1/3 1 dB . . r.m.s. 2/102.)s.m.(rd)(1= ttvTvTzz(5) Lvz 20.)s.m.(r2lg10vvLzvz= dB(6) v0 510 8m/s KS I ISO 9611: 2007 11 T : , 6 y . flaay221= (7) 12 11 (7) . Ly . 022.)s.m.(rlg10Lyy= dB
11、 (8) 180s105= 2/10)(2.)s.m.(rd1=TtyytT T . , , T . T 1 280/f1 (: f1 20 Hz, T 64 f1 ). 7.3 1/3 ( ) . , . . =10/1101lg10vxiLNivxNL dB (9) =10/1101lg10xiLNixNL dB (10) KS I ISO 9611: 2007 12 vxL : , x xL: , x N : Lvxi: , i x Lxi: , i x 8 r R (3.7 3.9 ). r R . , f1 f2 r 2 dB R 4 dB . 5.4.1 , r R . 13 ,
12、KS A ISO 5725 1 KS A ISO 5725 2 . 9 , . a) b) c) ( , , , ) d) ( ), e) f) f1 f2 g) , 7.1 h) , 5.1 i) , j) , , , k) l) , 7.3 m) , rKS I ISO 9611: 2007 13 A ( ) f1 f1 1/3 ( ) . f1 , f1 0f . . 0f , , . 0f . 1/3 ( , ) 0f . KS I ISO 9611: 2007 14 B ( ) f2 f2 ( , .) 1/3 ( , ) . f2 , ( B.1 ). 1/3 ( ) 6. , 5.4 7.2 . . f2 4 dB 1/3 ( , ) . 1.5 D , D . D . A . 3 . 14 , f2 . B.1 f2 KS I ISO 9611: 2007 15 C ( ) , . v x, v y, v z, x, y, z A vx, vy, vz, x, y, z( C.1 ) . x xy y z z vz v z C.1 , . vx v x h yvy v y h xvx , . , . FFT (6.2 ). 15 .