Structural Model Updating of Jacket Platform by Control Theory Using Vibration Measurement Approach

作     者：Farhad HOSSEINLOU Farhad HOSSEINLOU

作者机构：Faculty of civil engineering and architectureShahid Chamran University of AhvazAhvaz 61357Iran 

出 版 物：《China Ocean Engineering》 (中国海洋工程（英文版）)

年 卷 期：2021年第35卷第1期

页      面：96-106页

核心收录：

学科分类：081505[工学-港口、海岸及近海工程] 08[工学] 0815[工学-水利工程] 0824[工学-船舶与海洋工程] 0814[工学-土木工程] 082401[工学-船舶与海洋结构物设计制造] 

主　　题：offshore platform calibrated model control theory vibration test reduction model 

摘      要：The identification of variations in the dynamic behavior of structures is an important subject in structural integrity *** and servicing of offshore platforms in the marine environment with constant changing,requires understanding the real behavior of these structures to prevent possible *** this work,empirical and numerical models of jacket structure are investigated.A test on experimental modal analysis is accomplished to acquire the response of structure and a mathematical model of the jacket structure is also ***,based on the control theory using developed reduction system,the matrices of the platform model is calibrated and *** current methodology can be applied to prepare the finite element model to be more adaptable to the empirical *** results with the proposed approach in this paper are very close to those of the actual model and also this technique leads to a reduction in the amount of calculations and *** research clearly confirms that the dynamic behavior of fixed marine structures should be designed and assessed considering the calibrated analytical models for the safety of these structures.