English to German translations [PRO]
Tech/Engineering - Mechanics / Mech Engineering / Mechanik | | English term or phrase: shaker excitation | http://ip.com/patapp/US20100164187
FIG. 5 demonstrates a Frequency-Response-Function (FRF) ensemble of the thin-walled cylindrical component 10 shown in FIG. 1, measured with ***shaker excitation*** and no fixture applied. From the logarithmic expression of the curve above, an obvious congestion of vibration modes 13, identified as a group of congested peaks on the curve, is observed within the frequency range around 1000 Hz. From the linear expression of the curve below, irregular and reverberant less-damped vibration amplitudes 14 (Hmax 1=2.43 g/N, in this case) are observed within the same frequency range. These are typical dynamic characteristics of thin-walled shell/cylindrical components, as defined.
FIG. 6 demonstrates a Frequency-Response-Function (FRF) ensemble of the thick-walled arbour 5 shown in FIG. 1, measured with ***shaker excitation***. From the logarithmic expression of the curve above, an obvious sparseness of vibration modes 15 exists, identified as countable sparsely-distributed peaks on the curve, within the frequency range around 1000 Hz. From the linear expression of the curve below, regular and small vibration amplitudes 16 (Hmax 2=0.12 g/N, representing a high rigidity in this case) are observed within the same frequency range. These are typical dynamic characteristics of thick-walled components, as defined.
FIG. 7 demonstrates a Frequency-Response-Function (FRF) ensemble of the same thin-walled cylindrical component 10 shown in FIG. 1, measured with ***shaker excitation***, but wherein the adaptive fixture 100 of the present invention is applied, with inflation pressure set as 2.0 Bar. From the logarithmic expression of the curve above, an irregular but obvious sparseness of vibration modes 17, identified as countable sparsely-distributed peaks on the curve, is observed within the frequency range around 1000 Hz. From the linear expression of the curve below, irregular but heavy-damped vibration amplitudes 18 (Hmax 3=0.91 g/N, in this case) are observed within the same frequency range.
Vibration-Amplitude-Ratio between the thin-walled component 10 with fixture shown in FIG. 7, and without fixture shown in FIG. 5 is identified as: RH=Hmax 3/Hmax 1=2.67. As a validation criterion, the Vibration-Amplitude-Ratio should be in the range of RH≧2.5, for all the thin-walled shell/cylindrical components with the fixture applied, as defined. |
| heimoKudoZ activityQuestions: 743 ( 5 open) ( 25 without valid answers) ( 4 closed without grading) Answers: 33
| | Local time: 02:45
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| | German translation:Schwingungserregung | Explanation:
... würde ich hier als Abstraktum nehmen.
Ein Konstrukt mit Schwing-/Rüttel-/Schütteltisch würde ich vermeiden wollen. |
| Selected response from:
  Bernd Runge
Germany
Local time: 02:45
| Grading comment Herzlichen Dank!
4 KudoZ points were awarded for this answer |
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The translation workplace 
