著者

中村 友道 廣田 和生 友松 健一 高井 睦夫 岩瀬 敏彦 宇和川 誠一 班目 春樹 岩壺 卓三 齋藤 孝基

出版者

一般社団法人 日本機械学会

雑誌

日本機械学会論文集 C編 (ISSN:03875024)

巻号頁・発行日

vol.68, no.668, pp.1064-1072, 2002-04-25 (Released:2008-02-26)

参考文献数

7

被引用文献数

1 1

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A partial but full-size mock-up test of practical steam-generator U-bend tubes in nuclear power plants has been carried out, where the test model has been set in a HFCF-123 fluid two-phase flow loop. U-bend tubes are supported with so-called "Anti-vibration Bars (AVB) ", which have two types of AVBs in Japan, 7-span type and 5-span one. Both types of AVBs have been examined and it is found that tubes with AVB supports shows no large amplitude vibration up to 150% flow rate to the practical condition. Basic data for the fluidelastic instability are obtained when some tubes have been set to be flexible at some contact points with AVBs.