Model Test Study on Ice-Induced Vibrations of Compliant Multi-Cone Structures  

作　　者：黄焱 史庆增 宋安 

机构地区：[1]School of Civil Engineering,Tianjin University

出　　处：《China Ocean Engineering》2009年第2期317-328,共12页中国海洋工程（英文版）

基　　金：supported bythe National High Technology Research and Development Program of China(863Program,Grant No.2003AA602150-3);the National Natural Science Foundation of China(Grant No.50609015)

摘　　要：For the study on the ice-induced vibration of a compliant mono-cone structure,a series of model tests were performed from 2004 to 2006.In these tests,the ice sheet before the compliant conical structure was found to be failed in two-time breaking.Based on this important finding,model tests study of the ice force on a compliant multi-cone structure were performed from 2006 to 2007.In these tests,the ice sheet broke before each single cone non-simultaneously.The exciting energy of the total ice force was found to be in a wide range of frequencies,and the structure can be easily excited with nonlinear resonance.For the study on the ice-induced vibration of a compliant mono-cone structure,a series of model tests were performed from 2004 to 2006.In these tests,the ice sheet before the compliant conical structure was found to be failed in two-time breaking.Based on this important finding,model tests study of the ice force on a compliant multi-cone structure were performed from 2006 to 2007.In these tests,the ice sheet broke before each single cone non-simultaneously.The exciting energy of the total ice force was found to be in a wide range of frequencies,and the structure can be easily excited with nonlinear resonance.

关 键 词：model test dynamic ice force compliant multi-cone structure two-time breaking 

分 类 号：TU311.3[建筑科学—结构工程]