Abstract
Vibration surveillance and diagnostics of fuel rods and fuel assemblies are important tasks in NPPs. Thus accurate knowledge of vibration phenomena and measurability is very important. Experimental results on models without limiter give good coincidence with theoretical calculations. Spectra measured on impacting rod become smoother with increasing impacting level. Spectra of fuel rods have a wider range in impacting rate and higher level of smoothing than spectra of model rod have. The impacting rate strongly depends on mechanical properties of the rod. By the experiments, one can state that as for Fourier spectra the only thing caused by the impacts is the smoothening. However, there is a chance to give faulty diagnosis by Fourier spectra only. Consequently, investigation of fuel rod vibration requires increased caution. (author) 4 refs.; 12 figs.; 1 tab.
Citation Formats
Kiss, S, and Lipcsei, S.
Laboratory experiments with impacting fuel rods.
Hungary: N. p.,
1994.
Web.
Kiss, S, & Lipcsei, S.
Laboratory experiments with impacting fuel rods.
Hungary.
Kiss, S, and Lipcsei, S.
1994.
"Laboratory experiments with impacting fuel rods."
Hungary.
@misc{etde_10129221,
title = {Laboratory experiments with impacting fuel rods}
author = {Kiss, S, and Lipcsei, S}
abstractNote = {Vibration surveillance and diagnostics of fuel rods and fuel assemblies are important tasks in NPPs. Thus accurate knowledge of vibration phenomena and measurability is very important. Experimental results on models without limiter give good coincidence with theoretical calculations. Spectra measured on impacting rod become smoother with increasing impacting level. Spectra of fuel rods have a wider range in impacting rate and higher level of smoothing than spectra of model rod have. The impacting rate strongly depends on mechanical properties of the rod. By the experiments, one can state that as for Fourier spectra the only thing caused by the impacts is the smoothening. However, there is a chance to give faulty diagnosis by Fourier spectra only. Consequently, investigation of fuel rod vibration requires increased caution. (author) 4 refs.; 12 figs.; 1 tab.}
place = {Hungary}
year = {1994}
month = {Oct}
}
title = {Laboratory experiments with impacting fuel rods}
author = {Kiss, S, and Lipcsei, S}
abstractNote = {Vibration surveillance and diagnostics of fuel rods and fuel assemblies are important tasks in NPPs. Thus accurate knowledge of vibration phenomena and measurability is very important. Experimental results on models without limiter give good coincidence with theoretical calculations. Spectra measured on impacting rod become smoother with increasing impacting level. Spectra of fuel rods have a wider range in impacting rate and higher level of smoothing than spectra of model rod have. The impacting rate strongly depends on mechanical properties of the rod. By the experiments, one can state that as for Fourier spectra the only thing caused by the impacts is the smoothening. However, there is a chance to give faulty diagnosis by Fourier spectra only. Consequently, investigation of fuel rod vibration requires increased caution. (author) 4 refs.; 12 figs.; 1 tab.}
place = {Hungary}
year = {1994}
month = {Oct}
}