Frequency-Domain Estimation Method for Vibration-Induced Additional Cable Tension Based on Acceleration Monitoring

被引：4
|
作者：
Xu, Bin [1 ]
Dan, Danhui [2 ]
Zhao, Yiming [1 ]
机构：
[1] Tongji Univ, Dept Bridge Engn, Shanghai 200092, Peoples R China
[2] Tongji Univ, Minist Educ, Key Lab Performance Evolut & Control Engn Struct, Dept Bridge Engn, Shanghai 200092, Peoples R China
来源：
JOURNAL OF VIBRATION AND ACOUSTICS-TRANSACTIONS OF THE ASME | 2019年 / 141卷 / 06期
基金：
国家重点研发计划;
关键词：
modal analysis; smart materials and structures; structural dynamics and control; system identification; INTERMEDIATE DAMPER; BEAMS;
D O I：
10.1115/1.4044673
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
Under excitation due to the environment or traffic load, cable vibration never ceases; thus, fatigue cycles generated by vibration-induced additional cable tension (VACT) owing to the change of the cable configuration from static to dynamic are significantly frequent. Therefore, VACT is a non-negligible cable-fatigue load. To investigate the cable dynamic stability and fatigue, it is necessary to determine VACT in a dynamic environment. Herein, a method for estimating VACT in the frequency-domain by using acceleration data is proposed. In this method, according to the cable vibration control equation, the frequency-domain relationship between the VACT and the vibration response of the measuring point is established based on the dynamic stiffness. Parameter analysis simplifies the proposed model to estimate VACT using only acceleration data. The proposed method is verified with cable acceleration data.
引用
收藏
页数：5
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