首页|Cable vibration mitigation by using an H-bridge-based electromagnetic inerter damper with energy harvesting function

Cable vibration mitigation by using an H-bridge-based electromagnetic inerter damper with energy harvesting function

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The mitigation of bridge cable vibration has long been a research hotspot withsubstantial developments contributed to the field. In addition to vibration control,a recent development trend incorporates auxiliary sensors, local computingmodules, and data transmission devices to establish a comprehensive,integrated cable control and health monitoring system, which requires externalenergy input. However, an external power supply for these devices is notconsidered an attractive option, considering that the kinetic energy embodiedin cable vibrations can be potentially harvested to cover such power demand,leading to the establishment of an independent self-powered control andhealth monitoring system. In this regard, we proposed an unprecedentedsolution for cable vibration mitigation by developing a novel H-bridge-basedelectromagnetic inerter damper (HB-EMID) in this work, in which HB-EMIDcan emulate the control behavior of an inerter damper and possess an energyharvestingfunction. Meanwhile, the newly proposed HB-EMID is granted withgreat flexibility that can alter its equivalent mechanical properties by merelyadjusting the corresponding coding. Following the introduction of the systemtopology and working mechanism, this study applies an HB-EMID to a cablestructure and systematically investigates the balanced control and energyharvestingperformances, as well as its feasibility to full-scale application. Bothsatisfactory control performance and sufficient harvested power are confirmedthrough numerical validation.

cableelectromagnetic damperinerter damperself-powered controlwind excitation

Jin-Yang LI、Songye Zhu

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Department of Civil and EnvironmentalEngineering, The Hong Kong PolytechnicUniversity, Kowloon, Hong Kong

2022

Structural control and health monitoring

Structural control and health monitoring

EI
ISSN:1545-2255
年,卷(期):2022.29(12)
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