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Miyazaki, Akemi
Kozo Kogaku Rombunshu, B, 52B, p.119 - 124, 2006/03
Since it is generally difficult to predict the occurrence of natural disasters such as earthquakes, a performance management system that always maintains the safety and functionalities of structures is required, especially for critical ones like nuclear power plants. In order to realize such a system, it is becoming important to carry out modeling procedures and analyses in detail to better understand the real phenomena. Such details are important in understanding the phenomena occurring in frame structures such as piping systems which are considered to be one of the vulnerable parts in nuclear power plants. The aim of our research is to solve the dynamic behavior of piping systems in nuclear power plants which are complicated assemblages of parts. The spectral element method is adopted in this work and the formulation considering a shear deformation of a frame element is described. The Timoshenko beam theory is introduced for the purpose of this formulation. The validity of the presented element will be shown through comparisons made with the conventional beam.
Serizawa, Hiroyuki; Kikuchi, Hironobu; Iwai, Takashi; Arai, Yasuo; Kurosawa, Makoto; Mimura, Hideaki; Abe, Jiro
JAERI-Tech 2005-039, 23 Pages, 2005/07
JAERI-Tech-2005-039.pdf:2.89MB
A high-temperature ultrasonic measuring system had been designed and installed in a glovebox (711-DGB) to study a mechanical property of nuclear fuel containing trans-uranium (TRU) elements. A figuration apparatus for the cylinder-type sample preparation had also been modified and installed in an established glovebox (142-D). The system consists of an ultrasonic probe, a heating furnace, cooling water-circulating system, a cooling air compressor, vacuum system, gas supplying system and control system. An A/D converter board and an pulsar/Receiver board for the measurement of wave velocity were installed in a personal computer. The apparatus was modified to install into the glovebox. Some safety functions were supplied to the control system. The shape and size of the sample was revised to minimize the amount of TRU elements for the use of the measurement. The maximum sample temperature is 1500 
C. The performance of the installed apparatuses and the glovebox were confirmed through a series of tests.
Miyazaki, Akemi
Proceedings of 13th International Conference on Nuclear Engineering (ICONE-13) (CD-ROM), 6 Pages, 2005/05
Since it is generally difficult to predict the occurrence of the natural disasters such as earthquakes, a performance management system that always maintains the safety of the structures is required, especially for the critical ones like the nuclear power plants. To realize such a system, it is becoming important to carry out modeling procedures and analyses in detail to capture the real phenomena. Such details are important in understanding the phenomena occurring in the frame structures such as piping systems which are considered to be one of the most weakest and vulnerable parts in the nuclear power plants. The aim of our research is to solve the dynamic behavior, especially the wave propagation phenomena for the piping systems in the nuclear power. The spectral element method is adopted in this work and the formulation considering a shear deformation of a frame element is described. Timoshenko beam theory is introduced for the purpose of this formulation. The validity of the presented element will be shown through the comparisons made with the conventional beam element.
; Anoda, Yoshinari; Kukita, Yutaka
Proc. of 2nd Int. Conf. on Multiphase Flow (ICMF)95-KYOTO,Vol. 2, 0, p.P1_97 - P1_102, 1995/00
no abstracts in English
; Anoda, Yoshinari; Kukita, Yutaka
Nihon kikai Gakkai Dai-72-Ki Zenkoku Taikai Koen Rombunshu, Vol.II, 0, 3 Pages, 1994/00
no abstracts in English
; ; ; ; ; *; *; *
Nuclear Physics A, 456, p.298 - 316, 1986/00
Times Cited Count：14 Percentile：62.04(Physics, Nuclear)no abstracts in English
; ; *; *
Plasma Physics and Controlled Nuclear Fusion Research 1984, Vol.l, p.665 - 672, 1985/00
no abstracts in English
; *
Japanese Journal of Applied Physics, 21(4), p.L203 - L205, 1982/00
Times Cited Count：1 Percentile：12.39(Physics, Applied)no abstracts in English
