TY - JOUR
T1 - Analytical study on the effects of flexural rigidity and negative stiffness in the optimal tuning of inerter-based damper for cable vibration mitigation
AU - Shi, Xiang
AU - Ma, Junchi
AU - Xing, Lanchang
AU - Li, Jin Yang
AU - Zhu, Songye
N1 - Funding Information:
The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This work was supported by the National Natural Science Foundation of China (Grant No. 52008394), the China University of Petroleum (East China) (Project No. Y18050010), the Research Grants Council of Hong Kong (No. 15214620), and the National Observation and Research Station of Material Corrosion and Structural Safety of Hong Kong-Zhuhai-Macao Bridge in Guangdong. The second last author appreciates the financial support from the Hong Kong Polytechnic University through the post-doctoral fellowship scheme (PP0034914).
Publisher Copyright:
© The Author(s) 2022.
PY - 2022/12
Y1 - 2022/12
N2 - The control performances of inerter-based dampers on stay cables, usually governed by relevant damper parameters (such as inertance, stiffness, and damping coefficients), are sensitive to parameter variation around the optimal range. Further given these inerter-based dampers amplify the vibration amplitude at the damper location, the effects of cable’s flexural rigidity, which is often ignored in previous studies, are examined in this study. The results suggest an approximate 10% increase in all three design parameters (i.e., inertance, stiffness, and damping coefficients) is required to achieve optimal control compared with the case ignoring the flexural rigidity. In addition, the potential combination of inerter-based dampers with negative stiffness elements is also discussed in this study, which offers a more flexible layout and enhances multi-mode cable vibration control performance. Consequently, the tuning procedures are updated, and the revised optimal tuning formulas taking account of both the cable’s flexural rigidity and the introduction of negative stiffness are presented in this paper.
AB - The control performances of inerter-based dampers on stay cables, usually governed by relevant damper parameters (such as inertance, stiffness, and damping coefficients), are sensitive to parameter variation around the optimal range. Further given these inerter-based dampers amplify the vibration amplitude at the damper location, the effects of cable’s flexural rigidity, which is often ignored in previous studies, are examined in this study. The results suggest an approximate 10% increase in all three design parameters (i.e., inertance, stiffness, and damping coefficients) is required to achieve optimal control compared with the case ignoring the flexural rigidity. In addition, the potential combination of inerter-based dampers with negative stiffness elements is also discussed in this study, which offers a more flexible layout and enhances multi-mode cable vibration control performance. Consequently, the tuning procedures are updated, and the revised optimal tuning formulas taking account of both the cable’s flexural rigidity and the introduction of negative stiffness are presented in this paper.
KW - flexural rigidity
KW - inerter
KW - negative stiffness
KW - stay cable
KW - vibration control
UR - http://www.scopus.com/inward/record.url?scp=85141388746&partnerID=8YFLogxK
U2 - 10.1177/13694332221133203
DO - 10.1177/13694332221133203
M3 - Journal article
AN - SCOPUS:85141388746
SN - 1369-4332
VL - 25
SP - 3316
EP - 3333
JO - Advances in Structural Engineering
JF - Advances in Structural Engineering
IS - 16
ER -