Results 1 to 10 of about 8,017 (257)

Vibration isolation with quasi-zero stiffness effect [PDF]

open access: yesОмский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение", 2019
The study relates to an important direction of applied mechanics — the theory of vibration isolation of vibroactive objects, such as generators, engines, pumps, compressors, fans, pipelines, etc.
Yu. A. Burian, M. V. Silkov
doaj   +2 more sources

Programmable Quasi-Zero-Stiffness Metamaterials

open access: yesEngineering
Quasi-zero-stiffness (QZS) metamaterials have attracted significant interest for application in low-frequency vibration isolation. However, previous work has been limited by the design mechanism of QZS metamaterials, as it is still difficult to achieve a
Wenlong Liu   +7 more
doaj   +2 more sources

Dynamics of a group of quasi-zero stiffness vibration isolators with slightly different parameters

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2018
This article is devoted to finding solutions of problems of vibration isolators with quasi-zero stiffness from a manufacturing point of view. The following study is appeared after experimental study and manufacturing of preproduction serial of universal ...
Anvar Valeev
doaj   +2 more sources

Design and evaluation of a quasi-zero-stiffness isolator using flexibly supported negative stiffness mechanism [PDF]

open access: yesE3S Web of Conferences, 2021
In traditional quasi-zero-stiffness (QZS) isolation system, the negative stiffness part is usually fixed rigidly, lacking of effective amplifying mechanism.
Lou Yu, Zhou Peng
doaj   +1 more source

Research on Longitudinal High Load-bearing Quasi-zero Stiffness Isolator for Propulsion Shafting [PDF]

open access: yesZhengzhou Daxue xuebao. Gongxue ban, 2023
Aiming at the problem of longitudinal low-frequency vibration isolation of ship propulsion shafting, a high-load quasi-zero stiffness isolator was designed based on disc spring with negative stiffness characteristics and positive-stiffness coil spring in
REN Zhiying   +5 more
doaj   +1 more source

Dynamic properties of a motor grader seat with quasi-zero static characteristics [PDF]

open access: yesНаучно-технический вестник Брянского государственного университета, 2023
During operation, transport and technological machines and equipment experience significant vibration effects from the working environment, which are transmitted to the human operator through the cab seat.
Korytov M.S.   +2 more
doaj   +1 more source

Use of belleville springs in the vibration protective mechanism with a part of quasi-zero-stiffness [PDF]

open access: yesНаучно-технический вестник Брянского государственного университета, 2020
Reducing vibrations transmitted to the operator of construction and road vehicles through his chair is an urgent task, since significant vibrations lead to human diseases, reduce productivity and accuracy of work performed by machines, etc.
Korytov M.S.   +2 more
doaj   +1 more source

A bistable mechanism with linear negative stiffness and large in-plane lateral stiffness: design, modeling and case studies [PDF]

open access: yesMechanical Sciences, 2020
To overcome the limitations of conventional bistable mechanisms, this paper proposes a novel type of bistable mechanism with linear negative stiffness and large in-plane lateral stiffness.
Z. Zhou, Y. Gao, L. Sun, W. Dong, Z. Du
doaj   +1 more source

An Archetypal Vibration Isolator with Quasi-zero Stiffness in Multiple Directions [PDF]

open access: yesJournal of Nonlinear Mathematical Physics, 2022
AbstractTo avoid the failure under the longitudinal, shear, and mixed wave from earthquake, an archetypal vibration isolator based on a smooth and discontinuous (SD) oscillator is proposed. This model comprises a lumped mass mounted by a vertical spring and a horizontal elastic continuum, which separately provides positive and the negative stiffness ...
Zhu, Guangnan   +3 more
openaire   +2 more sources

A Variable Parameter Ambient Vibration Control Method Based on Quasi-Zero Stiffness in Robotic Drilling Systems

open access: yesMachines, 2021
Vibrations in the aircraft assembly building will affect the precision of the robotic drilling system. A variable stiffness and damping semiactive vibration control mechanism with quasi-zero stiffness characteristics is developed.
Laixi Zhang   +4 more
doaj   +1 more source

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