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Measurement of Tube/Tube Support Clearance via Induced Vibration Analysis
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Language:
English
Abstract
A number of nuclear power plant steam generators have been troubled with corrosion buildup between the tubes and supporting plates. A vibration type probe which traverses the interior of the tubes during plant shutdown has been developed to inspect the tube and support crevices. The probe incorporates a miniature electric vibrator and accelerometers to induce and measure tube motion at the support plate junctions. Laboratory investigation indicates that clearance gaps ranging from 1 to 30 mils can be accurately and rapidly measured even in the presence of tube misalignment and varied tube support conditions. The probe system is also suited to in-situ measurements of heat exchanger tube vibration characteristics.
Authors
Citation
Barrett, D., Scharton, T., and Kidd, C., "Measurement of Tube/Tube Support Clearance via Induced Vibration Analysis," SAE Technical Paper 801127, 1980, https://doi.org/10.4271/801127.Also In
References
- Nuclear News January 1979 34