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   Articles with "isolator" as a keyword



Dynamic characteristics of a quasi-zero stiffness vibration isolator with nonlinear stiffness and damping

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recommendations! Published in 2019 at "Archive of Applied Mechanics"

DOI: 10.1007/s00419-019-01541-0

Abstract: A quasi-zero stiffness (QZS) isolator is devised to acquire the feature of high-static-low-dynamic stiffness. Cam–roller–nonlinear spring mechanisms, where two horizontal dampers are installed symmetrically, are employed as a negative stiffness provider to connect in parallel… read more here.

Keywords: quasi zero; frequency; zero stiffness; spring ... See more keywords

A high-static–low-dynamic-stiffness vibration isolator with the auxiliary system

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recommendations! Published in 2018 at "Nonlinear Dynamics"

DOI: 10.1007/s11071-018-4441-5

Abstract: High-static–low-dynamic-stiffness (HSLDS) vibration isolators seek to widen the frequency range of isolation by decreasing the dynamic stiffness so as to reduce the natural frequency, while maintaining the same static displacement as equivalent linear isolators. However,… read more here.

Keywords: dynamic stiffness; isolator; system; auxiliary system ... See more keywords

Superharmonic resonance of the quasi-zero-stiffness vibration isolator and its effect on the isolation performance

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recommendations! Published in 2020 at "Nonlinear Dynamics"

DOI: 10.1007/s11071-020-05509-6

Abstract: Quasi-zero-stiffness (QZS) vibration isolator seeks better isolation performance by lowering the natural frequency while maintaining the same static load bearing capacity as equivalent linear isolator. In previous works on QZS isolator, the steady-state response is… read more here.

Keywords: superharmonic resonance; vibration; isolator; isolation performance ... See more keywords
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Numerical evaluation of effects of the isolator height and the leading-edge bluntness on a scramjet inlet

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recommendations! Published in 2020 at "Journal of the Brazilian Society of Mechanical Sciences and Engineering"

DOI: 10.1007/s40430-020-02352-z

Abstract: Air-breathing hypersonic vehicles can be powered by scramjet (supersonic combustion ramjet) engines, whose inlet requires blunt leading edges in order to overcome the high heat fluxes that are inherent of hypersonic flights. Thus, this work… read more here.

Keywords: isolator height; edge bluntness; isolator; leading edge ... See more keywords

On the characteristics of a quasi-zero-stiffness vibration isolator with viscoelastic damper

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recommendations! Published in 2020 at "Applied Mathematical Modelling"

DOI: 10.1016/j.apm.2020.06.068

Abstract: Abstract Quasi-zero-stiffness (QZS) vibration isolators have been widely studied in previous literature, in which the viscous damping was adopted. In this paper, the QZS isolator with viscoelastic damper is studied, to seek an approach for… read more here.

Keywords: isolator; zero stiffness; viscoelastic damper; quasi zero ... See more keywords

Space-wave isolator based on remanence at microwave frequencies

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recommendations! Published in 2021 at "Optik"

DOI: 10.1016/j.ijleo.2020.165531

Abstract: Abstract A platy isolator for plane waves at microwave frequencies is proposed and investigated theoretically. The isolator is a layered structure which consists of a dielectric layer sandwiched by two yttrium-iron-garnet (YIG) layers with opposite… read more here.

Keywords: isolator; isolator based; wave isolator; transverse resonance ... See more keywords

Low frequency vibration isolator with adjustable configurative parameter

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recommendations! Published in 2017 at "International Journal of Mechanical Sciences"

DOI: 10.1016/j.ijmecsci.2017.09.050

Abstract: Abstract This paper will develop a low frequency vibration isolator with a mechanism for adjusting the configurative parameter (shorted LFVIM). This isolator offers a large isolation range, ensures a load bearing capacity and maintains the… read more here.

Keywords: isolator; vibration isolator; frequency; configurative parameter ... See more keywords

Improved hybrid isolator with maglev actuator integrated in air spring for active-passive isolation of ship machinery vibration

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recommendations! Published in 2017 at "Journal of Sound and Vibration"

DOI: 10.1016/j.jsv.2017.07.007

Abstract: Abstract A hybrid isolator consisting of maglev actuator and air spring is proposed and developed for application in active-passive vibration isolation system of ship machinery. The dynamic characteristics of this hybrid isolator are analyzed and… read more here.

Keywords: hybrid isolator; isolator; maglev actuator; vibration ... See more keywords

Shock isolation performance of a geometric anti-spring isolator

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recommendations! Published in 2018 at "Journal of Sound and Vibration"

DOI: 10.1016/j.jsv.2017.10.024

Abstract: Abstract In this paper, shock isolation performance of a geometric anti-spring (GAS) isolator is investigated. The static and dynamic stiffness property of GAS isolator is discussed. The mathematical simulation is used to explore the effect… read more here.

Keywords: isolation; isolator; shock isolation; isolation performance ... See more keywords
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A tunable quasi-zero stiffness isolator based on a linear electromagnetic spring

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recommendations! Published in 2020 at "Journal of Sound and Vibration"

DOI: 10.1016/j.jsv.2020.115449

Abstract: Abstract High-static-low-dynamic stiffness (HSLDS) or quasi-zero stiffness (QZS) has attracted a great deal of attention in vibration isolation research. However, most existing HSLDS isolators have a nonlinear stiffness, which may lead to nonlinear behavior under… read more here.

Keywords: isolator; stiffness; electromagnetic spring; zero stiffness ... See more keywords

Compact and low loss magneto-optical waveguide isolator for TE mode based on lithium niobate on insulator

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recommendations! Published in 2021 at "Optics Communications"

DOI: 10.1016/j.optcom.2021.127088

Abstract: Abstract A novel optical isolator for fundamental transverse electric (TE) mode light based on asymmetric Mach–Zehnder interferometer (MZI) configuration is proposed. Asymmetric Mach–Zehnder interferometer (MZI) configuration is employed to generate nonreciprocal phase shift (NRPS). The… read more here.

Keywords: lithium niobate; mode; isolator; niobate insulator ... See more keywords