On the Design of a Linear Composite Magnetic Damper

Bissal, Ara; Salinas, Ener; Magnusson, Jesper; Engdahl, Göran

doi:10.1109/tmag.2015.2440770

Cited by 11 publications

(3 citation statements)

References 9 publications

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“…These dampers have been analysed in high-rise building structures and have reduced the seismic force of natural disasters [22,23]. Analysis and performance evaluation of a damper with a high damping force using the contact force of permanent magnets was performed [24][25][26][27][28]. In recent years, computational methods such as the finite element approach have been used to improve the damper structure [27][28][29][30][31].…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Simulation of a Novel Magnetic Pole Repulsive Passive Damper for Vibration Control

Sathish Kumar,

Vijayakumar,

Cruze

et al. 2023

ACAE

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This article presents a novel magnetic pole repulsive damper (MPRD) incorporating neodymium magnetic repulsive blocks and springs. The study explores the mechanical properties of the springs and magnetic blocks through numerical simulations using ANSYS and experimental evaluation. To gain deeper insights into the behaviour of the MPRD, an accurate and high-fidelity finite element model was developed. The evaluation process involved a comprehensive comparison between the numerical simulations and experimental tests, explicitly focusing on cyclic compression–tension forces. The study encompassed the functioning, design implications, fabrication technique, mechanical performance, and numerical simulation for the cyclic compression–tension forces of the MPRD. The cyclic compression–tension tests revealed a gradual increase in force, with the MPRD achieving an ultimate force of 2,877 kN. The MPRD exhibited robust hysteresis behaviour in cyclic loading, showing its capacity to undergo and uphold the stability of the combination of its materials. The cyclic compression–tension results indicated the maximum force carrying capability of the damper. This resilience implies its full reusability in such scenarios. The comparison between cyclic compression–tension tests confirmed the alignment between the numerical simulation and experimental investigation.

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Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Simulation of a Novel Magnetic Pole Repulsive Passive Damper for Vibration Control

Sathish Kumar,

Vijayakumar,

Cruze

et al. 2023

ACAE

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“…The absence of friction eliminates lubricant requirements and increases the system lifetime. Recent and innovative configurations are currently developing the damping capacity of this technology [4,5]. However, magnetic damping shares the common limitation of pure passive vibration isolation techniques: the incapability of damping low frequency microvibrations.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Impedance Matching Using a Magnetic Linear Gear

Valiente–Blanco¹,

Cristache²,

Sanchez-Garcia-Casarrubios³

et al. 2017

Shock and Vibration

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As part of the Fp7 Clean Sky Project, a linear magnetic gear prototype, called -transmitter, for aerospace application was designed, built, and tested. It demonstrates a maximum force capacity of 4700 N at 25 ∘ C and 4500 N at 90 ∘ C. Force ratio between slow and fast stages remains constant and equal to the design value: 7.0. The behavior of the real -transmitter as a mechanical impedance matching device when any stiffness is attached to the fast stage including the limit cases of a blocked fast stage or a free to move fast stage is experimentally explored. Although the real -transmitter deviates from the ideal, frictionless and massless, device, it still provides an impedance matching effect large enough to potentially become an extremely useful technology for vibration control when combined with other elements such as dampers, springs, or active elements.

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“…For instance, Cheung [46] investigated the effect of spacer thickness variance on the magnitude of induced voltage in the coils. Bissal et al [47] developed finite-element-method-based models to determine the magnet arrangement, topology, and spacer materials that results in the highest damping forces.…”

Section: Electromagnetic Dampingmentioning

confidence: 99%

Computational and Experimental Characterization of a Novel Nonlinear Magnetic Shock Absorber with Applications to Ground Vehicles

Daliri Shadbad

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The aim of this thesis is to propose a novel magnetic nonlinear shock absorber and to study the feasibility of the system in real-world applications. This shock absorber consists of an array of identical repelling magnets with an electromagnetic coil energy harvesting system.The nonlinear dynamics of the shock absorber were developed analytically and are implemented in a simulation environment. A parametric study was conducted to study the effects of the magnet mass, repelling force, inter-lattice equilibrium distance, and coil damping on the response of the system. Additionally, to experimentally validate the nonlinear dynamic modelling of the novel magnetic shock absorber, a magnetic shock absorber prototype was developed. The unknown parameters of the shock absorber, such as the magnetic repelling force relationship, were identified. The static and transient responses of the simulation were compared with those of the manufactured magnetic shock absorber prototype and it was shown that the simulation and the experimental results are in agreement.

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On the Design of a Linear Composite Magnetic Damper

Cited by 11 publications

References 9 publications

Experimental and Numerical Simulation of a Novel Magnetic Pole Repulsive Passive Damper for Vibration Control

Experimental and Numerical Simulation of a Novel Magnetic Pole Repulsive Passive Damper for Vibration Control

Mechanical Impedance Matching Using a Magnetic Linear Gear

Computational and Experimental Characterization of a Novel Nonlinear Magnetic Shock Absorber with Applications to Ground Vehicles

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