Results 21 to 30 of about 209,989 (310)

Permeability and dynamic elastic moduli of controlled porosity ultra-precision aerostatic structures [PDF]

open access: yes, 2014
Porous ceramic aerostatic bearings enable precise and smooth motion and improved stiffness compared with widely used orifice restrictor bearings. However, the processing techniques so far used are too complex or rely in lowering the sintering temperature
Corbett, John   +2 more
core   +1 more source

Recent Advances in Non-Traditional Elastic Wave Manipulation by Macroscopic Artificial Structures

open access: yesApplied Sciences, 2020
Metamaterials are composed of arrays of subwavelength-sized artificial structures; these architectures give rise to novel characteristics that can be exploited to manipulate electromagnetic waves and acoustic waves. They have been also used to manipulate
Jeonghoon Park, Dongwoo Lee, Junsuk Rho
doaj   +1 more source

Creep and Hardening Characteristics of Anthracite under Graded Static–Dynamic Coupled Loading

open access: yesApplied Sciences, 2023
Remaining coal pillars in remining areas exhibit clear creep characteristics, and dynamic pressure accelerates their instability and failure. The creep and hardening characteristics of coal under dynamic pressure are of great engineering significance for
Shaofei Yue   +5 more
doaj   +1 more source

Study on magnetic preparation of dual disk based on silica gel magneto-elastic abrasive particles

open access: yesXibei Gongye Daxue Xuebao, 2021
Magneto-elastic abrasive grains have magnetism, low elastic modulus and excellent abrasive performance, and have the characteristics of bonded abrasive grains and loose abrasive grains.
Zhao Xuefeng   +5 more
doaj   +1 more source

Energy Radiation from a Multi-Story Building [PDF]

open access: yes, 2004
Damping limits the resonance of vibrating systems and thus higher anelastic damping is generally favored for engineered structures subjected to earthquake motions, because it means that a structure can dissipate a larger percentage of its energy per ...
Favela, Javier
core   +1 more source

Experimental Determination of the Elastic-Viscous Characteristics of Elastic Ropes

open access: yesProcedia Engineering, 2015
Abstract The conducted analytical, numerical and experimental studies for waiving of the elastic-viscous characteristics of elastic ropes are presented in the current report. The analytical studies are related to the creation of a dynamic and mathematical model of a vibrating system, supported by such ropes.
Pavlov, Peter, Evlogiev, Daniel
openaire   +1 more source

Intrinsically Elastic Robots: the Key to Human Like Performance [PDF]

open access: yes, 2012
Intrinsically elastic robots, which technically implement some key characteristics of the human muskoskeletal system, have become a major research topic in nowadays robotics. These novel devices open up entirely new control approaches.
Friedl, Werner   +21 more
core   +1 more source

Dynamic Characteristics Study of Elastic Ring Squeeze Film Damper with Rigid–Elastic–Oil Coupled Model

open access: yesLubricants, 2023
Due to the coupling of the damper journal with the elastic ring and oil film, the elastic ring squeeze film damper (ERSFD) shows better dynamic performance in comparison with the traditional squeeze film damper (SFD). Therefore, a novel rigid–elastic–oil
Yan Li, Haisheng Yang, Sier Deng
doaj   +1 more source

On Love-type waves in a finitely deformed magnetoelastic layered half-space [PDF]

open access: yes, 2012
In this paper, the propagation of Love-type waves in a homogeneously and finitely deformed layered half-space of an incompressible non-conducting magnetoelastic material in the presence of an initial uniform magnetic field is analyzed.
Saxena, P.   +3 more
core   +1 more source

Elastic Behaviour and Microstructural Characteristics of Nd60Al10Fe20Co10 Bulk Metallic Glass Investigated by Ultrasonic Measurement under Pressure [PDF]

open access: yes, 2003
An ultrasonic pulse-echo method was used to measure the transit time of longitudinal and transverse (10 MHz) elastic waves in a Nd60Al10Fe20Co10 bulk metallic glass (BMG). The measurements were carried out under hydrostatic pressure up to 0.5 GPa at room
Wang, WH (reprint author), Chinese Acad Sci, Inst Phys, POB 603, Beijing 100080, Peoples R China.   +6 more
core   +1 more source

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