1、 (ISO 11205:2003, IDT) , ()INTERSTATE COUNCIL FOR STANDARDIZATION, METROLOGY AND CERTIFICATION(ISC) 11205200692006/227, - 1.092 . - 1.297 . , . , , -, 1 - - ( ) - , 42 3 , (- 30 7 2006 .) : ( 3166) 00497 ( 3166) 00497 AMBYKZKGMDRUTJUA - - 4 11205:2003 . . - (ISO 11205:2003 Acoustics Noise emitted by
2、 machinery and equipment Engineering method for thedetermination of emission sound pressure levels in situ at the work station and at other specified positions usingsound intensity). . , , - , -, .E. / 43 . (en). (IDT)5 14 2007 . 132- 112052006 1 2007 .6 ( ) - ., . , 2007 -, II 1120520061 .12 13 14
3、35 .36 .46.1 46.2 47 47.1 47.2 .57.3 .57.4 .57.5 68 .68.1 68.2 .68.3 78.4 78.5 88.6 88.7 .88.8 .89 .89.1 89.2 89.3 .89.4 .99.5 99.6 .99.7 .910 , 9 () . . 10 () 5000 11 () .11 D () 12 .E () , , .1314III 112052006 Noise emitted by machinery.Determination of emission sound pressure levels at the work s
4、tation and at other specified positions using sound intensity.Engineering method1 (2- ) . 11201, 11202 11204 . -, .,. , .2 . . - ( ). 7574-1 . - . 1. - 12001 . , . 60942:2003 . 61043:2003 . . 3 :3.1 c114I,/2(sound intensity): - , - .1 112052006 200710011 c114I = lim10TptutdtT()()c114c242, p(t) , ;c1
5、14u(t) , /;T , .2 .3.2 c114Ixyz,/2(sound intensity vector): - .3.3 LIxyz,(level of the sound intensity vector): I0.1 LIxyz= 10lg|IIc114xyz|0c230c232c231c231c246c248c247c247.2 I0=1012/2.3.4 FpIxyz(sound field pressure-intensity indicator or field indicator): - c162Lp LIxyz.1 FpIxyz= c162Lp LIxyz.2 x,
6、y z, FpIx, FpIyFpIz.3 9614-1 F2.3.5 c100pI 0(pressure-residual intensityindex): , , - . (acoustic coupler ) - , , - .3.6 Lp,(emission sound pressure level): - () , - , .3.7 (specified position): , , - . , - , , . , , .3.8 Ld,(dynamic capability index): K:Ld= c100pI 0 K. K = 10 .2 1120520063.9 K5(hem
7、i-free fieldintensity correction): , , .1 K5=1.2 - , . 916. K5 , , . K5A.4 , - - , , , . - , - ; , . 8. 7574-1, .- . , - . - , , . 1. , - 95 %, , . 1 )c115RA, ), b)c115rA, ), , d),1,5)c115rA c115c115RA rA22c43 2 c115c115RA rA22c43) . - c115r(c115rc187 0,5 ).b) ( c115r 0,5 ).) 5000 , c115RA , . .d)95 %- .) c115r. 11, 12, 15 17.5 , ( ), - . , 3 112052006 . , . , , - , . , () - , . . K5 , , ,
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