Experimental Study on High Damped U-Bend Tube Bundle of Steam Generator

Autor:	Muneaki Kato, Takaya Kusakabe, Yonezo Tsujikura, Tomomichi Nakamura, Fumio Hara, Heki Shibata
Rok vydání:	1999
Předmět:	Physics Damping ratio business.industry Mechanical Engineering Boiler (power generation) Frequency dependence Structural engineering Mechanics Industrial and Manufacturing Engineering Mechanics of Materials Bundle Excited state Earthquake shaking table business
Zdroj:	TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C. 65:3567-3574
ISSN:	1884-8354 0387-5024
DOI:	10.1299/kikaic.65.3567
Popis:	This report shows an experimental study on the high damping characteristics of the U-bend tube bundle Steam Generators in PWR-type nuclear power plants. The tube bundle is tied up with a rodstructure called "anti-vibration bar (AVB)". Four test models which are the partial and the fullsize mock-up of the practical plants are excited with a three dimensional shaking table. It, at nrst, shows the basic characteristics of the tube bundle. Secondary, the quantitive estimation of the damping ratio is reported. The vibrational characteristics greatly depend on the exciting direction. Then, the estimation of the out-of-plane direction is 8%, and the one in the in-plane one is 15%. They are more than a present damping ratio, 1%.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::24bf2d23db8619d4aa423925a2919f75 https://doi.org/10.1299/kikaic.65.3567 Zobrazit plný text záznamu