Results 101 to 110 of about 65,623 (306)

Random Wind Vibration Control of Transmission Tower-Line Systems Using Shape Memory Alloy Damper

open access: yesBuildings
Shape memory alloy dampers (SMADs) are widely applied in structural vibration control due to their excellent superelastic properties. However, there has been no research on the random wind-induced vibration control of transmission tower-line (TTL ...
Mingjing Chang   +3 more
doaj   +1 more source

A Field Investigation on Vortex-Induced Vibrations of Stay Cables in a Cable-Stayed Bridge

open access: yesApplied Sciences, 2019
A field study was conducted to identify the vortex-induced vibrations (VIVs) of stay cables in a cable-stayed bridge. A full-scale health-monitoring system was established to observe the wind effects of the selected cables.
Wen-Li Chen   +3 more
doaj   +1 more source

Ultrastable Photoactive Halide Perovskite Nanocrystal‐Sensitized SnO2 Nanorods for Room‐Temperature NO2 Detection

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT Metal oxide (MOx)‐based NO2 gas sensors typically require high temperatures or ultraviolet light, limiting their practical use. To enable visible‐light activation at room temperature, efficient and stable photosensitizers should be integrated with nanostructured MOx hosts.
Yeonji Yuk   +10 more
wiley   +1 more source

Study on Wind-Induced Dynamic Response and Statistical Parameters of Skeleton Supported Saddle Membrane Structure in Arching and Vertical Direction

open access: yesBuildings
Wind tunnel tests and numerical simulations are the mainstream methods to study the wind-induced vibration of structures. However, few articles use statistical parameters to point out the differences and errors of these two research methods in exploring ...
Ziye Chen   +6 more
doaj   +1 more source

Chaotic Vibrations in a Buckled Beam Induced by a Galloping Phenomenon [PDF]

open access: yes, 2008
Chaos theory has spectacularly evolved since the pioneering work by E. Lorenz on chaotic motion in a simple, deterministic system. Since then, the chaotic behavior of many other deterministic, low-dimensional systems in a large variety of fields has been ...
Alonso Rodrigo, Gustavo   +1 more
core   +1 more source

Wind-induced vibration of tall timber buildings [PDF]

open access: yes, 2011
In various urban locations around the world, there are examples of multi-storey buildings which have recently been constructed, or are proposed to be constructed using timber as their primary structural material. Such buildings present new challenges in design and analysis.The Eurocode 1 analysis method for along-wind vibration is applied here to a ...
Reynolds, Thomas, Chang, W, Harris, R
openaire  

Nanolayer‐Encapsulated Stretchable Liquid‐Metal Sheets for Thermal Management

open access: yesAdvanced Functional Materials, EarlyView.
A stretchable liquid metal sheet with both high thermal conductivity and mechanical flexibility is developed. Its trilayer structure, comprising copper‐particle‐dispersed gallium liquid metal encapsulated by styrene‐butadiene‐styrene nanosheets, shows 40.4 W m−1 K−1 conductivity, elongation exceeding 200%, and retention of 96% of its initial ...
Daisuke Kuse   +16 more
wiley   +1 more source

A New Threshold Switching Device With Tunable Negative Differential Resistance Based on ErMnO3 Polymorphs

open access: yesAdvanced Functional Materials, EarlyView.
Polymorph engineering in ErMnO3 enables low‐voltage, forming‐free threshold switching with tunable negative differential resistance. Conducting orthorhombic regions embedded in an insulating hexagonal matrix provide controlled Joule‐heating‐enhanced Poole–Frenkel transport. The hexagonal phase prevents excessive heating and breakdown.
Rong Wu   +8 more
wiley   +1 more source

Study on Aerodynamic Optimization of II-Shaped Cable-Stayed Bridge with Vortex-Induced Vibration in Mountainous Areas

open access: yesZhongwai Gonglu
Given vortex-induced vibrations of bridges caused by high wind attack angles in mountainous canyons, this study investigated the vortex-induced dynamic characteristics of a Π-shaped steel-concrete composite beam cable-stayed bridge in a mountainous ...
ZENG Min   +5 more
doaj   +1 more source

Misalignment diagnosis of a planetary gearbox based on vibration analysis [PDF]

open access: yes, 2014
As a critical power transmission system, planetary gearbox is widely used in many industrial important machines such as wind turbines, aircraft turbine engines, helicopters.
Abdalla, Gaballa M.   +5 more
core  

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