中国工程科学2011，Vol.13Issue(5)：79-87,9.
渤海JZ9-3WHPB平台冰激振动测量与分析
The measurement and analysis of ice induced vibration of JZ9-3WHPB oil platform in Bohai Sea
摘要
Abstract
Based on the structure and layout of the untended JZ9-3WHPB platform, remote controllable ice induced vibration monitoring system was designed and installed on JZ9-3WHPB platform to record the vibration of the structure so as to learn its dynamic characteristics. Short time Fourier transform was employed to study the temporal variations and mode frequencies of the vibration. Vibration mode was analyzed by comparison of the phase difference between the vibrations of the upper and lower deck and applying bandpass filtering to the signal. Based on the count and analysis of the maximum amplitude and duration of the vibrations, tide and current of the water,and the structure of the platform, the defects of anti-ice induced vibration structure were analyzed, and ice resistant proposals were presented.关键词
海洋平台/渤海海冰/冰激振动/振动加速度/短时傅里叶分析Key words
offshore platform/ sea ice of Bohai Sea/ ice induced vibration/ vibration acceleration/ short time Fourier transform分类
海洋科学引用本文复制引用
兰志刚,赵英年,国建凤,周振涛,邢健,白刚,鲁红革,李辉辉..渤海JZ9-3WHPB平台冰激振动测量与分析[J].中国工程科学,2011,13(5):79-87,9.基金项目
海洋石油总公司科技发展项目(C/KJFJDSY 003-2008) （C/KJFJDSY 003-2008）
