Results 51 to 60 of about 8,268 (287)

Evaluating adaptive vertical seismic isolation for equipment in nuclear power plants [PDF]

open access: yes, 2020
Seismic isolation systems are widely recognized as beneficial for protecting both acceleration- and displacement-sensitive nonstructural systems and components.
Becker, TC   +2 more
core  

Chaotification of Quasi-Zero Stiffness System via Direct Time-delay Feedback Control [PDF]

open access: yes, 2013
This paper presents a chaotification method based on direct time-delay feedback control for a quasi-zero-stiffness isolation system. An analytical function of time-delay feedback control is derived based on differential-geometry control theory ...
Diao, Ai-min   +3 more
core   +3 more sources

Engineering Deformation and Failure in Diamond Triply Periodic Minimal Surface Lattices via 3D Wall‐Thickness Grading

open access: yesAdvanced Engineering Materials, EarlyView.
The work demonstrates that strategic wall‐thickness grading in diamond triply periodic minimal surface lattices enables precise tuning of deformation and failure behavior under compression. Different gradation patterns guide how and where the structure collapses, improving energy absorption or promoting controlled brittle failure.
Giovanni Rizza   +3 more
wiley   +1 more source

Road to entire insulation for resonances from a forced mechanical system

open access: yesScientific Reports, 2022
The effective solution to avoid machinery damage caused by resonance has been perplexing the field of engineering as a core research direction since the resonance phenomenon was discovered by Euler in 1750. Numerous attempts have been performed to reduce
Guangnan Zhu   +5 more
doaj   +1 more source

On zero stiffness [PDF]

open access: yes, 2014
Zero-stiffness structures have the remarkable ability to undergo large elastic deformations without requiring external work. Several equivalent descriptions exist, such as (i) continuous equilibrium, (ii) constant potential energy, (iii) neutral ...
Guest, SD, Schenk, M
core  

Local Thermal Conductivity Patterning in Rotating Lattice Crystals of Anisotropic Sb2S3

open access: yesAdvanced Functional Materials, EarlyView.
Microscale control of thermal conductivity in Sb2S3 is demonstrated via laser‐induced rotating lattice crystals. Thermal conductivity imaging reveals marked thermal transport anisotropy, with the c axis featuring amorphous‐like transport, whereas in‐plane directions (a, b) exhibit 3.5x and 1.7x larger thermal conductivity.
Eleonora Isotta   +13 more
wiley   +1 more source

Oscillating Systems with Elastic Element Moving between Guides with given Shape [PDF]

open access: yes, 2016
Oscillations of the systems with force characteristics with hysteresis loops of rectangular shape obtained by dry friction forces are analyzed. Linear and rotary cases of the system were analyzed. Designs of these systems are presented.
Glebov, Sergey   +2 more
core  

Laser additive manufacturing of Miura-origami tube inspired quasi-zero stiffness metamaterial with prominent longitudinal wave propagation [PDF]

open access: yes, 2023
Origami metamaterials have become frontiers of research in many disciplines due to their infinite design space, simple size variation, and topologically variable properties.
Chen, Hongyu   +5 more
core   +2 more sources

A Biologically‐Architected Wear and Damage‐Resistant Nanoparticle Coating From the Radular Teeth of Cryptochiton stelleri

open access: yesAdvanced Functional Materials, EarlyView.
The ultrahard teeth of mollusks that feed on rocky substrates contain a wear‐resistant coating on their surfaces consisting of densely packed mesocrystalline magnetic nanoparticles within an organic matrix. These coatings display significant hardness and toughness through their highly controlled mesocrystalline architectures.
Taifeng Wang   +7 more
wiley   +1 more source

Vibration isolation performance analysis of double layer vibration isolation system

open access: yesZhongguo Jianchuan Yanjiu, 2017
[Objectives] Studying the influence of the system parameters of a quasi-zero stiffness isolator on vibration isolation performance can provide a key direction for the application of quasi-zero stiffness isolation in vibration isolation systems.[Methods ...
ZHAO Jianxue   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy