STUDY ON DYNAMIC FEATURES OF DELIVERY VALVE OF SHIP LOCKS OF THE THREE-GORGE PROJECT

摘要：

A method of experimental mode analysis is applied in the prototype tests of dynamic features of delivery valve of ship locks of the Three-Gorge Project. The frequency response scope of field strikes meets the requirement of tests and analyses of hydraulic gates. A structural coupling theory based on dynamic flexibility is used to identify the modal frequency of 1 rank and 2 rank of valve-boom coupling system, i.e. 12.5Hz and 32.5Hz respectively, fundamentally out of the high energy zone produced by hydrodynamic strikes. Without a special loading, there will be no harmful vibration of delivery valve. Comparison result of dynamic features between prototype and hydraulic model tests shows that the boundary constraint of delivery valve in prototype controls the occurrence of lateral vibration and the modal frequency of low ranks corresponding to different vibration types is multiplied.

关键词： delivery valve of ship locks prototype observation test of dynamic features dynamic flezibility comparison between prototype and hydraulic model

作者: Shaoze Luo Baokang Fan Yaan Hu Feng Sun

作者单位: State Key Lab of Hydrology, Water Resources and Hydraulic Engineering,Nanjing Hydraulic Research Institute, Nanjing 210029, China

会议类型: 国际会议

会议名称: 第16届亚太地区国际水利学大会暨第3届水工水力学国际研讨会(16th IAHR-APD Congress and 3rd Symoposium of IAHR-ISHS)

会议地点: 南京

会议语种:英文

页码: 1562-1567

在线出版日期: 2008-10-20（万方平台首次上网日期，不代表论文的发表时间）