Results 41 to 50 of about 113,510 (320)

A six degree of freedom passive vibration isolator with quasi-zero-stiffness-based supporting

Journal of Low Frequency Noise, Vibration and Active Control, 2018
A six degree of freedom nonlinear passive vibration isolator is proposed based on Stewart platform configuration with the quasi-zero-stiffness structure as its legs. Due to the high static stiffness and low dynamic stiffness of each leg, the proposed six
Jiying Tuo, Zhaoxiang Deng, Wei Huang, Heshan Zhang   +3 more
doaj   +1 more source

Uncertainty Analysis and Optimization of Quasi-Zero Stiffness Air Suspension Based on Polynomial Chaos Method

Chinese Journal of Mechanical Engineering, 2022
To improve the vibration isolation performance of suspensions, various new structural forms of suspensions have been proposed. However, there is uncertainty in these new structure suspensions, so the deterministic research cannot reflect the performance ...
Xing Xu, Huan Liu, Xinwei Jiang, Akolbire Vincent Atindana   +3 more
doaj   +1 more source

Bistable Mechanisms 3D Printing for Mechanically Programmable Vibration Control

Advanced Engineering Materials, EarlyView.
This work introduces a 3D‐printed bistable mechanism integrated into tuned mass dampers (TMDs) for mechanically adaptive passive vibration suppression. Through optimized geometry, the bistable design provides adaptable vibration reduction across a broad range of scenarios, achieving effective vibration mitigation without complex controls or external ...
Ali Zolfagharian, Frédéric Demoly, Mohammad Lakhi, Bernard Rolfe, Mahdi Bodaghi   +4 more
wiley   +1 more source

Ergodic properties of a generic non-integrable quantum many-body system in thermodynamic limit

, 1998
We study a generic but simple non-integrable quantum {\em many-body} system of {\em locally} interacting particles, namely a kicked $t-V$ model of spinless fermions on 1-dim lattice (equivalent to a kicked Heisenberg XX-Z chain of 1/2 spins). Statistical
A. V. Andreev, B.V. Chirikov, B.V. Chirikov, D. Poilblanc, D.L. Shepelyansky, E. Fermi, E.B. Bogomolny, F. Haake, G. Casati, G. Gallavotti, G. Gallavotti, G. Jona-Lasinio, G. Montambaux, H. Castella, M. Lenci, M. Suzuki, M. V. Berry, M.L. Mehta, M.V. Berry, M.V. Berry, N. Dunford, O. Bohigas, O. Bohigas, P. Castiglione, P. Jordan, P. Mazur, R. Artuso, R. Kubo, S. Fujimoto, S. Graffi, S. Lepri, S. Lepri, S. Winograd, T. Prosen, T. Prosen, T. Prosen, T. Prosen, T.C. Hsu, Tomaž Prosen, V. I. Arnold, V.E. Korepin, V.V. Flambaum, W. H. Press, X. Zotos, X. Zotos   +44 more
core   +1 more source

Four‐Point Bending Tests at High Temperatures on Commercial MgO‐C Refractory Bricks with and Without Recyclate Considering Different Carbon Contents

Advanced Engineering Materials, EarlyView.
Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm, Lukas Knöchel, Thomas Schemmel, Christos G. Aneziris, Anja Weidner, Horst Biermann   +5 more
wiley   +1 more source

Advances in Design Methods for Quasi‑zero Stiffness Vibration Isolation

Zhendong Ceshi yu Zhenduan
Quasi-zero stiffness （QZS） vibration isolation， by introducing stiffness nonlinearity， effectively addresses the inherent contradiction between load-bearing capacity and isolation bandwidth in conventional linear isolators.
ZHANG Wenming, LU Jiajia, YAN Ge
doaj   +1 more source

Investigation of the dynamic efficiency of complex passive low-frequency vibration isolation systems

Journal of Low Frequency Noise, Vibration and Active Control, 2019
In this study, the theoretical and experimental investigations of the dynamics of complex passive low-frequency vibration systems are described. It is shown that a complex system consisting of a vibrating platform, an optical table and a vibration ...
M Jurevicius, V Vekteris, V Turla, A Kilikevicius, G Viselga   +4 more
doaj   +1 more source

Effective Frequency Range and Jump Behavior of Horizontal Quasi-Zero Stiffness Isolator

Applied Sciences, 2023
The quasi-zero stiffness (QZS) isolator shows excellent characteristics of low-frequency vibration isolation. However, the jump behavior caused by the strong nonlinearity is a primary reason for the failure of QZS isolators.
Lixin Xu, Kaili Dai, Hongyu Hao, Huizhou Zeng, Jianen Chen   +4 more
doaj   +1 more source

Експериментальні дорожні дослідження плавності ходу спеціалізованого транспортного засобу з нелінійним підресоренням [PDF]

, 2012
В роботі представлені результати експериментальних досліджень коливань вантажу, що розміщений на спеціалізованому транспортному засобі (СТЗ) під час перевезень. Експерименти проведені у вигляді дорожніх випробувань.
Водка, Олексій Олександрович, Ларін, Олексій Олександрович, Назаров, О. О., Соколовський, С. А.   +3 more
core  

Modified spin-wave theory with ordering vector optimization I: frustrated bosons on the spatially anisotropic triangular lattice

, 2009
We investigate a system of frustrated hardcore bosons, modeled by an XY antiferromagnet on the spatially anisotropic triangular lattice, using Takahashi's modified spin-wave (MSW) theory.
Akhiezer A I, Becker C Soltan-Panahi P Kronjäger J Dörscher S Bongs K Sengstock K, Berezinskii V L, Berezinskii V L, Diep H T, Eckardt A, Fetter A, Garcia-Ripoll J J, Hauke P Roscilde T Murg V Cirac I Schmied R, J Ignacio Cirac, Jaksch D, Kawamura H, Kosterlitz J M, Lhuillier C, Maleev S V, Maleev S V, Philipp Hauke, Roman Schmied, Schmied R, Tommaso Roscilde, Valentin Murg   +20 more
core   +1 more source