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vanhalen1983

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The verification shall be done by dynamic force measurements on a supporting structure with low mobility. The vertical dynamic blocked force level shall be measured and presented narrow-banded and in 1/3-octave bands from 16 Hz to 3.15 kHz.

For the blocked force measurements, it has to be shown experimentally that the supporting structure has a vertical dynamic mobility of less than -90 dB re. 1m/Ns at least in the frequency range covering the 1/3-octave band range from 16 Hz ¨C 3.15 kHz.

The vertical source dynamic mobility Ysource at the mounting points must be measured narrow-banded according to ISO 7626-2 or ISO 7626-5 in the frequency range covering the 1/3-octave band range(±¶Æµ³Ì·¶Î§)from 16 Hz ¨C 3.15 kHz.

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mikehuihui

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vanhalen1983(½ð±Ò+5, ·­ÒëEPI+1): 2010-12-31 11:42:37
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slz146

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vanhalen1983(½ð±Ò+5): 2011-01-10 09:53:45
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slz146

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vanhalen1983(½ð±Ò+3): 2011-01-10 09:53:49
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