VIBRATIONAL ANALYSIS FOR THE NEXT GENERATION NPL KIBBLE BALANCE |
|---|
| J. Berry, P. Lovelock, I. A. Robinson, J. Urquhart |
- Abstract:
- Low uncertainty Kibble balance measurements require careful consideration of the effect of external sources of vibration. This paper compares vibrational modelling of the machine frame of the National Physical Laboratory’s next generation Kibble balance using three different software packages. The output of the modelling on the machine frame showed that the first modes of vibration were all above the design requirement of 60 Hz.
The model was then enhanced to include the moving section of the balance modelled with two types of guidance mechanism. The output from the modelling showed a reduction in the resilience of the balance to lateral vibrations but the linkage type guidance mechanism was still resilient to induced vibrations at frequencies up to 50 Hz. - Keywords:
- Kibble balance; mass; vibration; modal analysis
- Download:
- IMEKO-TC22-2022-077.pdf
- DOI:
- 10.21014/tc22-2022.077
- Event details
- IMEKO TC:
- TC22
- Event name:
- TC22 Conference 2022
- Title:
5th TC22 Conference on Vibration Measurement (together with the 24th TC3 Conference on the Measurement of Force, Mass and Torque, the 14th TC5 Conference on the Measurement of Hardness, and the 6th TC16 Conference on Pressure and Vacuum Measurement)
- Place:
- Cavtat-Dubrovnik, CROATIA
- Time:
- 11 October 2022 - 13 October 2022