Measurement of Tube/Tube Support Clearance via Induced Vibration Analysis
801127
09/01/1980
- Event
- Content
- 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.
- Pages
- 16
- 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.