Results 51 to 60 of about 91,375 (296)
The influence of forces of viscous resistance on the efficiency of damping in hinges with large gaps in the crane-manipulator installations [PDF]
Научно-технический вестник Брянского государственного университета, 2016 The article considers regularities of the influence of forces of viscous resistance generated by the damper device in the cylindrical hinges of the nodes connect the links of the crane-manipulator units mobile transport-technological ma-chines.
Lagerev I.A., Milto A.A., Lagerev A.V.
doaj
Advanced Functional Materials, EarlyView.Cuttlebone‐inspired metamaterials exploit a septum‐wall architecture to achieve excellent mechanical and functional properties. This review classifies existing designs into direct biomimetic, honeycomb‐type, and strut‐type architectures, summarizes governing design principles, and presents a decoupled design framework for interpreting multiphysical ...
Xinwei Li, Zhendong Li
wiley +1 more source
Validation of equivalent viscous damping methodologies [PDF]
CEAS Space Journal, 2013 An important step in the design and verification process of spacecraft structures is the coupled dynamic analysis with the launch vehicle in the low-frequency domain. To obtain accurate predictions of the satellite’s dynamic environment, it is essential that the damping of the system is correctly defined and taken into account within the resolution ...
Xavier Vaquer Araujo +3 more
openaire +1 more source
Critical Torsional Oscillations of a Rotating Accelerated Shaft [PDF]
, 1932 We assume that the forces applied to the shaft have a variable part which is a moment of constant amplitude M(x) per unit length, distributed along the shaft, and varying with a frequency proportional to the angular velocity.
Biot, M.
core
Adaptive Hydrogels With Spatiotemporal Stiffening Using pH‐Modulating Enzymes
Advanced Functional Materials, EarlyView.The chemomechanical coupling in an adaptive hydrogel is studied to further the development of adaptive hydrogels. This coupling is achieved by embedding a pH‐modulating enzyme in a pH‐responsive hydrogel. The enzymatic reaction can be triggered locally, which generates a pH‐decreasing wave throughout the system, increasing the crosslinking density and ...
Natascha Gray +3 more
wiley +1 more source
Frequency dispersion of small-amplitude capillary waves in viscous fluids [PDF]
, 2016 This work presents a detailed study of the dispersion of capillary waves with small amplitude in viscous fluids using an analytically derived solution to the initial value problem of a small-amplitude capillary wave as well as direct numerical simulation.
Denner, F
core +4 more sources
Intelligent Acousto‐Electrical Metamaterials (IAM) for Sound Source Detection
Advanced Materials, EarlyView.Our proposed metamaterial concept enables sound source detection using a single material, in contrast to conventional arrays that require dozens or even hundreds of transducers. We show that the coupled acoustic–vibrational–electrical responses in piezoelectric metamaterials give rise to topology‐governed charge transport, producing distinct voltage ...
Victor Couëdel +7 more
wiley +1 more source
THREE-DIMENSIONAL FRACTAL MODEL OF DAMPING FOR TANGENTIAL CONTACT IN JOINT INTERFACES
Jixie qiangdu, 2021 Based on fractal theory,continuous smooth exponential model of elastic-plastic contact,and considering the influence of friction factors and applying an improved W-M function that simulating three-dimensional fractal profile surface,the fractal model of ...
LAN GuoSheng +5 more
doaj
Nonlinear spiral density waves - Viscous damping
The Astrophysical Journal, 1985 The formalism of Borderies, Goldreich, and Tremaine (1984), as simplified by Shu and Stewart (1985), is used to develop a theory for the viscous damping of nonlinear density waves in particulate disks of moderate collision frequency. The specific application is to Saturn's rings, but the development is general enough to allow application to a wider ...
F. H. Shu +4 more
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Advanced Materials, EarlyView.Ordered three‐dimensional anodic aluminum oxide (3D‐AAO) nanoarchitectures with longitudinal and transverse pores enable architecture‐driven metamaterials. The review maps fabrication advances, including hybrid pulse anodization, and shows how 3D‐AAO templates tailor properties across magnetism, energy, catalysis, and sensing.
Marisol Martín‐González
wiley +1 more source