Simulation Study for Free Spanning VIV Displacement Reconstruction Method Based on Novel Integration in Time Domain

摘要：

　　Vortex-induced vibration (VIV) is one of the important factors that lead to the free spanning system fatigue damage.The displacement reconstruction which cased by VIV become the main topic in free spanning pipelines fatigue damage monitoring.However,reconstructed the VIV displacement through direct double integrating the vibrate acceleration signal may be lead to the results are not reliable and accurate.In this paper,a new displacement reconstruction algorithm in time domain is presented,firstly we remove trend terms by polynomial least square curve fitting technique,we obtain corrected acceleration,then we apply frequency and time domain hybrid integral method to reconstruct VIV displacement.To verify the proposed algorithm,numerical simulation is carried out.

关键词： VIV free spanning displacement reconstruction polynomial least square curve fitting

作者: Xiaodong LIU Haiyan WANG Xiaohong SHEN Yixuan ZHAO

作者单位: Northwestern Polytechnical University Xian, China

会议类型: 国际会议

会议名称: 2016 Sixth International Conference on Instrumentation and Measurement,Computer,Communication and Control (IMCCC2016)(第六届仪器测量、计算机通信与控制国际会议)

会议地点: 哈尔滨

会议语种:英文

页码: 774-778

在线出版日期: 2016-07-21（万方平台首次上网日期，不代表论文的发表时间）