Potential reduction of the inertial mass of tuned vibration absorbers by means of mechanical impedance matching

In this paper, a new technology for vibration isolation based on impedance matching using a linear magnetic gear is presented. Using that operational principle, a prototype of an Impedance Matching Tuned Vibration Absorber (Z-TVA) is designed, manufactured and tested. An inertial mass is coupled to...

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Bibliographic Details
Published inJournal of sound and vibration Vol. 442; pp. 90 - 107
Main Authors Valiente-Blanco, I., Perez-Diaz, J.L., Cristache, C.
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier Ltd 03.03.2019
Elsevier Science Ltd
Subjects
Absorbers
Dynamics
Gear ratios
Impedance matching
Magnetic
Maintenance costs
Mechanical design
Mechanical impedance
New technology
Passive damping
Reduction
Structural damping
Tuned mass damper
Vibration
Vibration absorber
Vibration absorber
Structural damping
Passive damping
Magnetic
Tuned mass damper
Impedance matching
Dynamics
Mechanical design
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Summary:In this paper, a new technology for vibration isolation based on impedance matching using a linear magnetic gear is presented. Using that operational principle, a prototype of an Impedance Matching Tuned Vibration Absorber (Z-TVA) is designed, manufactured and tested. An inertial mass is coupled to the fast-moving stage of the linear magnetic gear, increasing its motion proportionally to the square of the gear ratio, and therefore its effectiveness as a vibration absorber. A theoretical model is postulated and validated with tests at a component level, demonstrating a promising solution for drastically reducing the required mass and installation and maintenance cost. A potential reduction of the required mass of a vibration absorber of more than an order of magnitude is predicted.
ISSN:0022-460X
1095-8568
DOI:10.1016/j.jsv.2018.10.043