Performance enhancement of floating raft system by exploiting geometric nonlinearity and motion constraint in vibration isolators

Dai, Wei; Li, Tianyun; Wang, Lin; Zhu, Xiang; Shi, Baiyang; Yang, Jian

doi:10.1016/j.oceaneng.2024.119656

Ocean Engineering

2024

DOI: 10.1016/j.oceaneng.2024.119656

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Performance enhancement of floating raft system by exploiting geometric nonlinearity and motion constraint in vibration isolators

Wei Dai,

Tianyun Li,

Lin Wang

et al.

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Cited by 1 publication

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Modeling and Characteristic Test for a Crank-Connecting Rod Mem-Inerter Device

Zhang,

Chen,

Nie

et al. 2024

Machines

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This paper presents a mechanical crank-connecting rod mem-inerter device, with its output and memory characteristics being investigated and validated. Previous research suggests that a hydraulic mem-inerter generates a sizeable damping force, practically transforming it into a mem-dashpot. This greatly influences a system’s vibration characteristics when using a hydraulic mem-inerter. In contrast, the proposed crank-connecting rod inerter exhibits negligible damping force, addressing the issue of excessive damping in hydraulic inerters and potentially enhancing the actual isolation effect. We successfully developed a prototype of the trial production device, and a bench characteristic test was conducted. Our quasi-static test results indicate that frictional resistance during device operation can be negligible. Our dynamic characteristic test results reveal that the characteristic curves of the device on the momentum–velocity plane can be displayed as a pinched hysteresis loop. Our results are in agreement with the simulation outcomes, which proves that the crank-connecting rod inerter is a physical realization of a mem-inerter device.

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Modeling and Characteristic Test for a Crank-Connecting Rod Mem-Inerter Device

Zhang,

Chen,

Nie

et al. 2024

Machines

View full text Add to dashboard Cite

show abstract

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Performance enhancement of floating raft system by exploiting geometric nonlinearity and motion constraint in vibration isolators

Cited by 1 publication

References 65 publications

Modeling and Characteristic Test for a Crank-Connecting Rod Mem-Inerter Device

Modeling and Characteristic Test for a Crank-Connecting Rod Mem-Inerter Device

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