VIBRATIONAL ANALYSIS FOR THE NEXT GENERATION NPL KIBBLE BALANCE |
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| 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
- Event details
- IMEKO TC:
- TC22
- Event name:
- TC22 Online Workshop 2023
- Title:
IMEKO TC22 Online Workshop on Low-Frequency Vibration Metrology
Registration deadline: 1 April 2023
Dates and times: 4 to 5 April 2023, 12 PM to 2 PM CET
Brief description: Technical Committee 22 (TC22) “Vibration Measurement” of the International Measurement Confederation (IMEKO) (www.imeko.org) invites all interested persons to participate in its online workshop on low-frequency vibration metrology, to be held online on 4 to 5 April 2023, from 12 PM to 2 PM Central European Time each day. Low-frequency vibration traceability is a topic of focused interest and development around the world, see for example the Infra-AUV project of Euramet.
- Place:
- ONLINE,
- Time:
- 04 April 2023 - 05 April 2023