埕北油田A平台生活平台的环境振动测量及数据处理分析

Enviromental Vibration Measurement and Data Processing Analysis on U/A Platform,Platform A of Chengbei Oilfield

本文介绍了1989年9月9日和1991年7月28日两次对渤海埕北油田A平台生活平台的环境振动测量过程,并对数据进行了处理分析,给出了环境荷载振动下平台的加速度、速度、位移的测量结果,分别对比了不同时期A平台的自振特性变化情况和平台不同高度测点的加速度、速度、位移变化特征,并利用同一高程两测点资料对平台的扭转进行了初步分析。本文还附上了平台长期强震观测台获得的靠船振动资料,并据此做了有关平台阻尼比的分析。

The article introduces the whole procedure of enviromen;al vibration measurement on U/A platform,platform A of Chengbei oilfield. After the data processing analysis,the measured results of acceleration,velocity and displacement of the platform are provided under the condition of enviromental vibration. And self-vibration at different period ,changeable character of acceleration, velocity and displacement at different height measuring points of the platform are compared with. A primary analysis of torsion to the platform at two different measuring points of the same height is made. The vibration of mooring ship's collision received by the long - term macroseism observation station on the platform is attached in the paper. Based upon it the analysis for damp ratio of the platform is also made.