MODEL-BASED ANALYSIS OF THE DYNAMIC BEHAVIOUR OF A 250 KN SHOCK FORCE CALIBRATION DEVICE |
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| Michael Kobusch, Leonard Klaus, Thomas Bruns |
- Abstract:
- An analysis of the dynamic behaviour of the 250 kN primary shock force calibration device at PTB is presented. Two airborne mass bodies with the force transducer under test are brought to collision, and the generated inertial forces are determined by means of laser vibrometers. Measurements with a heavy transducer revealed modal oscillations which were identified by acceleration sensors. The dynamic system behaviour was analysed with a finite element model. It showed that the elastic coupling between the transducer and the reference mass body causes low-frequency oscillations that have to be taken into account for calibration purposes.
- Keywords:
- shock force calibration, impact bodies, inertial forces, dynamic modelling
- Download:
- IMEKO-WC-2012-TC3-O10.pdf
- DOI:
- -
- Event details
- Event name:
- XX IMEKO World Congress
- Title:
Metrology for Green Growth
- Place:
- Busan, REPUBLIC of KOREA
- Time:
- 09 September 2012 - 12 September 2012