Optimisation and measurement of eddy current damping in a passive tuned mass damper

Beek, TA Tom van; Pluk, Kjw Kevin; Jansen, J.W.; Lomonova, E.A.

doi:10.1049/iet-epa.2015.0445

Cited by 6 publications

(4 citation statements)

References 23 publications

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“…However, the design is simple and constraint to the specific linear motor stage. In [23], the eddy current damping is applied in a passive tuned mass damper using a Halbach array of magnets against a copper plate.…”

Section: Eddy Current Dampers Eddy Current Dampers (Ecds)mentioning

confidence: 99%

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Review of Passive Electromagnetic Devices for Vibration Damping and Isolation

Díez-Jiménez

Rizzo

Gómez-García

et al. 2019

Shock and Vibration

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Passive electromagnetic devices for vibration damping and isolation are becoming a real alternative to traditional mechanical vibration and isolation methods. These types of devices present good damping capacity, lower cost, null power consumption, and higher reliability. In this work, a state-of-the-art review has been done highlighting advantages and drawbacks, application fields, and technology readiness level of most recent developments. In addition, a general introductory section relates presents key considerations that any engineer, electrical or mechanical, needs to know for a deep comprehension and correct design of these types of devices.

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Section: Eddy Current Dampers Eddy Current Dampers (Ecds)mentioning

confidence: 99%

“…ECD can also be found working independently or in combination with tuned mass dampers (TMD) [26,27] or magnetorheological dampers [28]. In any case, references [22][23][24][25][26][27][28] are far from a product-oriented design and they remained just as interesting proof-ofconcept prototypes.…”

Section: Eddy Current Dampers Eddy Current Dampers (Ecds)mentioning

confidence: 99%

Review of Passive Electromagnetic Devices for Vibration Damping and Isolation

Díez-Jiménez

Rizzo

Gómez-García

et al. 2019

Shock and Vibration

View full text Add to dashboard Cite

show abstract

“…Moreover, different types and configurations of EC damper have been proposed (Li et al, 2019;Liu and Lui, 2020;Shi et al, 2017), such as the EC-embedded base isolation (Villaverde, 2017), tuned mass damper (TMD) (Wang et al, 2012(Wang et al, , 2019, the electromagnetic damper with increased energy density (Zuo et al, 2011), and the EC damper with friction (Amjadian and Agrawal, 2018). To fully utilize the energydissipation efficiency of the EC damping, researchers have attempted to increase the damping density by optimizing the magnet configuration (Beek et al, 2016). For example, an EC damper with alternating magnetic field directions is proposed and presents a significantly increased damping capacity of three to five times (Zuo, et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Equivalent circuit model of eddy current damping regarding frequency-dependence with test validation

Shi

Loong

Shan

2021

Advances in Structural Engineering

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This study proposes an equivalent circuit model to simulate the mechanical behavior and frequency-dependent characteristic of eddy current (EC) damping, with the validations from multi-physics finite element (FE) modeling and dynamic testing. The equivalent circuit model is first presented with a theoretical expression of the EC damping force. Then, the transient analysis with an ANSYS-based FE model of an EC damper is performed. The time-history forces from the FE model are compared with that from the proposed equivalent circuit model. The favorable agreement indicates that the proposed model can simulate the nonlinear behavior of EC damping under different excitation scenarios. A noncontact and friction-free planar EC damper is designed, and its dynamic behavior is measured by employing shake table testing. The experimental observations can be reproduced by the proposed equivalent circuit model with reasonable accuracy and reliability. The proposed equivalent circuit model is compared with the classical viscous model and the higher-order fractional model using a complex EC damper simulated in ANSYS to show the advantages of the proposed model regarding model simplicity and prediction accuracy. A single-degree-of-freedom (SDOF) structure with different EC damping models is further analyzed to illustrate the need for accurate EC damping modeling.

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“…Some smart materials and structures that possess unique electromechanical characteristics have been widely used for active vibration control, such as magneto-rheological fluid damper [1], piezoelectric damper [2][3][4][5], shape memory alloy [6,7] and eddy current damper [8][9][10][11]. The active vibration control system consists of actuators, controllers, and sensors.…”

Section: Introductionmentioning

confidence: 99%

Shunt Damping Vibration Control Technology: A Review

Yan

Wang

et al. 2017

Applied Sciences

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Smart materials and structures have attracted a significant amount of attention for their vibration control potential in engineering applications. Compared to the traditional active technique, shunt damping utilizes an external circuit across the terminals of smart structure based transducers to realize vibration control. Transducers can simultaneously serve as an actuator and a sensor. Such unique advantage offers a great potential for designing sensorless devices to be used in structural vibration control and reduction engineering. The present literature combines piezoelectric shunt damping (PSD) and electromagnetic shunt damping (EMSD), establishes a unified governing equation of PSD and EMSD, and reports the unique vibration control performance of these shunts. The schematic of shunt circuits is given and demonstrated, and some common control principles and equations of these shunts are summarized. Finally, challenges and perspective of the shunt damping technology are discussed, and suggestions made based on the knowledge and experience of the authors.

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Optimisation and measurement of eddy current damping in a passive tuned mass damper

Cited by 6 publications

References 23 publications

Review of Passive Electromagnetic Devices for Vibration Damping and Isolation

Review of Passive Electromagnetic Devices for Vibration Damping and Isolation

Equivalent circuit model of eddy current damping regarding frequency-dependence with test validation

Shunt Damping Vibration Control Technology: A Review

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