On the appearance of horseshoe chaos in a nonlinear hysteretic systems with negative stiffness
Sign Up to like & getrecommendations! Published in 2021 at "Archive of Applied Mechanics"
DOI: 10.1007/s00419-021-02038-5
Abstract: The problem of inhibition of horseshoe chaos in a nonlinear hysteretic systems using negative stiffness is investigated in this paper. The Bouc–Wen model is used to describe the force produced by both the purely hysteretic… read more here.
Keywords: chaos nonlinear; nonlinear hysteretic; hysteretic systems; negative stiffness ... See more keywords
Mechanical property analysis of disc spring
Sign Up to like & getrecommendations! Published in 2018 at "Journal of the Brazilian Society of Mechanical Sciences and Engineering"
DOI: 10.1007/s40430-018-1152-2
Abstract: Based on the finite element method, numerical simulation models of a standard disc spring were built and force–displacement curves were obtained under different displacement loads. Then the static loading experiments were conducted by the tensile… read more here.
Keywords: disc spring; negative stiffness; spring; force displacement ... See more keywords
A novel cylindrical negative stiffness structure for shock isolation
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DOI: 10.1016/j.compstruct.2019.02.030
Abstract: Abstract The negative stiffness (NS) metamaterial is a promising material that has attracted a great amount of interest. Many types of NS structures have been proposed and investigated. However, almost all of the previously proposed… read more here.
Keywords: negative stiffness; structure; shock isolation;
New rocking column with control of negative stiffness displacement range and its application to RC frames
Sign Up to like & getrecommendations! Published in 2020 at "Engineering Structures"
DOI: 10.1016/j.engstruct.2019.110133
Abstract: Abstract This paper investigates the use of rocking columns with central steel bars in RC building frames. Motivated by the adverse effects of conventional steel bars anchored at both ends, a new rocking column is… read more here.
Keywords: range; rocking column; new rocking; negative stiffness ... See more keywords
Tunable negative stiffness spring using maxwell normal stress
Sign Up to like & getrecommendations! Published in 2021 at "International Journal of Mechanical Sciences"
DOI: 10.1016/j.ijmecsci.2020.106127
Abstract: Abstract A vibration isolator based on a tunable negative stiffness mechanism combines the advantages of high-static-low-dynamic stiffness (HSLDS) isolators to expand the isolation frequency band and variable stiffness isolators to suppress resonance. In this paper,… read more here.
Keywords: stiffness; negative stiffness; using maxwell; stiffness spring ... See more keywords
Experiment study on nonlinear oscillator containing magnetic spring with negative stiffness
Sign Up to like & getrecommendations! Published in 2020 at "International Journal of Non-linear Mechanics"
DOI: 10.1016/j.ijnonlinmec.2019.103396
Abstract: Abstract The concept of negative stiffness may find extensive applications in wave manipulation and low frequency isolation of vibration. Many realizations use prestressed or buckled components, by which the negative stiffness possesses strong nonlinearity and… read more here.
Keywords: stiffness; vibration; negative stiffness; experiment study ... See more keywords
Multi-objective optimisation for improving the seismic protection performance of a multi-storey adaptive negative stiffness system based on modified NSGA-II with DCD
Sign Up to like & getrecommendations! Published in 2021 at "Journal of building engineering"
DOI: 10.1016/j.jobe.2021.103145
Abstract: Abstract Installing adaptive negative stiffness devices (ANSD) on multiple storeys of a building structure to develop a smart seismic protection system, namely multi-storey adaptive negative stiffness system (MANSS), is an effective approach to mitigate the… read more here.
Keywords: adaptive negative; seismic protection; negative stiffness; multi ... See more keywords
A novel negative stiffness magnetic spring design for vehicle seat suspension system
Sign Up to like & getrecommendations! Published in 2020 at "Mechatronics"
DOI: 10.1016/j.mechatronics.2020.102370
Abstract: Abstract By employing a couple of columnar magnets with a specific arrangement, a negative stiffness magnetic spring (NSMS) is designed, modelled and then experimentally validated in this paper. Such a magnetic spring with negative stiffness… read more here.
Keywords: negative stiffness; seat; seat suspension; magnetic spring ... See more keywords
Application of a dynamic vibration absorber with negative stiffness for control of a marine shafting system
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DOI: 10.1016/j.oceaneng.2018.02.047
Abstract: Abstract A dynamic vibration absorber (DVA) with negative stiffness is proposed to suppress the longitudinal vibration transmission along a marine shafting system. Stiffness models of the DVA with negative stiffness, which is composed of a… read more here.
Keywords: shafting system; stiffness; dva negative; vibration ... See more keywords
Multi-stopband negative stiffness composite column design for vibration absorption
Sign Up to like & getrecommendations! Published in 2019 at "Thin-Walled Structures"
DOI: 10.1016/j.tws.2019.106330
Abstract: Abstract This paper explores the basic mechanism of a multi-stopband negative stiffness composite column. The column consists of two parts: the base structure (concrete-filled steel tube (CFST)) and mass-spring-damper vibration absorbers (tungsten sphere-rubber). The local… read more here.
Keywords: column; stopband negative; vibration; multi stopband ... See more keywords
Simulated and experimental studies on a high-static-low-dynamic stiffness isolator using magnetic negative stiffness spring
Sign Up to like & getrecommendations! Published in 2017 at "Mechanical Systems and Signal Processing"
DOI: 10.1016/j.ymssp.2016.09.040
Abstract: Abstract For the purpose of isolating the low frequency vibration, a magnetic vibration isolator with the feature of high-static-low-dynamic stiffness (HSLDS) is developed in this paper, which is constructed by combining a magnetic negative stiffness… read more here.
Keywords: isolator; stiffness; frequency; magnetic negative ... See more keywords