Review Article

Review of Passive Electromagnetic Devices for Vibration Damping and Isolation

Table 2

Summary and main conclusions of PEDVDI review.

TypeFields of applicationAdvantagesDrawbacks

ECDAerospace, civil engineering, precision instrumentation, robotics, and automotiveContactless damping, best specific damping coefficient, cleanness, temperature resistantMagnetic contamination and heat generation
EMSDMicrovibration and low-frequency energy harvestingDissipation transportable and energy harvestingPerformance restricted to resonance frequency
MNSDPrecision manufacturing, optical and scientific instrumentation, vehicles seat, and rotary machineryReduced resonance frequency, enhancement of damping at higher frequencies, and easy manufactory, reliabilityNo direct damping capacity
PMRDAutomotive elements like dampers, clutches, or brakesHigh specific damping coefficientOil contamination

TypeCharacteristic parametersDevelopment level

ECDDamping coefficient from 1 to 35000 Ns/m; specific damping coefficient between 1000 and 2000 Ns/m·kgCommercialized products
EMSDDamping coefficient from 1 to 10000 Ns/m; energy harvesting density from 0.1 to 10 mW/cm3Laboratory demonstrator
MNSDReduced resonance frequency up to ten timesLaboratory demonstrator
PMRDDamping coefficient from 1 to 50000 Ns/m; specific damping coefficient between 10000 and 20000 Ns/m·kgLaboratory demonstrator