High-damping rubber damper for taut cable vibration reduction

Cu, Viet Hung; Han, Bing

doi:10.1080/13287982.2015.1092690

Cited by 15 publications

(21 citation statements)

References 13 publications

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“…In general, the damping ratio calculated by the present model shows high agreement with findings of Cu and Han [11]. The validation metrics of present model and [11] are shown in Table 1. The predicted value of the present model and [11] exhibits a high correlation.…”

Section: Model Validationsupporting

confidence: 80%

“…They concluded that the efficiency of the damper can be increased by adding more rotational restrain 2 of 12 stiffness. According to previous studies [4,[9][10][11], the maximum modal damping of stay cable is directly proportional to the distance of the damper from its end. The effect of single HDR damper and other damper types on stay cable damping has attracted many further studies [4,6,8,9,[11][12][13][14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 93%

“…According to previous studies [4,[9][10][11], the maximum modal damping of stay cable is directly proportional to the distance of the damper from its end. The effect of single HDR damper and other damper types on stay cable damping has attracted many further studies [4,6,8,9,[11][12][13][14][15][16][17][18]. However, due to the bridge aesthetic, the damper is often installed near the cable end within a few percentages of cable length that lessens the efficiency of the damper.…”

Section: Introductionmentioning

confidence: 93%

“…Figure 3 presents the damping ratio computed by present model and [11] for different damper locations. In general, the damping ratio calculated by the present model shows high agreement with findings of Cu and Han [11]. The validation metrics of present model and [11] are shown in Table 1.…”

Section: Model Validationmentioning

confidence: 99%

“…In addition, Fujino Y., and Nam H. [7] proposed the formulas for calculating the cable damping ratios of stay cable with a single HDR-damper. Cu et al, further investigated on stay cable with HDR damper [11]. They found that the damping ratio has strong dependency on loss factor and damper location.…”

Section: Introductionmentioning

confidence: 99%

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Theoretical Investigation on the Impact of Two HDR Dampers on First Modal Damping Ratio of Stay Cable

Nguyen

Haque

2021

Applied Sciences

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Stay cables are one of the vital components of a cable-stayed bridge. Due to their flexible nature, stay cables are vulnerable to external excitation and often vibrate with large amplitude under wind action which leads to the fatigue failure of the cables. To suppress such kind of large amplitude vibration by improving the damping ratio of the cable various dampers such as magnetorheological damper, friction damper; oil damper; or high damping rubber (HDR) damper are utilized and gained popularity over time. This paper focuses on improving the damping ratio of stay cables using a combination of two HDR dampers. First, the theoretical model is formulated considering cable bending stiffness to evaluate the damping effect of cable-HDR dampers system. Then, the impact of various design parameters of HDR dampers on cable damping considering the cable stiffness is performed. The comparative analysis of results shows that the considered parameters such as loss factor, spring factor, and installation location of dampers have much effect on the stay cables damping ratio. Finally, the optimal parameters of the two HDR dampers are proposed for damper design.

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Section: Model Validationsupporting

confidence: 80%