Results 261 to 270 of about 7,612,934 (328)

A high-efficient breeze energy harvester utilizing a full-packaged triboelectric nanogenerator based on flow-induced vibration

, 2020
Wind energy is an important and promising renewable energy for the sustainable development of society. However, considering the limitations of device structures, collection of low-speed wind energy by triboelectric nanogenerators (TENGs) still faces some
Qi-Xuan Zeng, Yan Wu, Qian Tang, Wen-Lin Liu, Jun Wu, Ying Zhang, Guoying Yin, Hua-Ke Yang, Song-Lei Yuan, Du-Juan Tan, Chenguo Hu, Xue Wang   +11 more
semanticscholar   +1 more source

Flow-induced vibration of two tandem square cylinders at low Reynolds number: transitions among vortex-induced vibration, biased oscillation and galloping

Journal of Fluid Mechanics
The flow-induced vibrations (FIVs) of two identical tandem square cylinders with mass ratio m* = 3.5 at Reynolds number Re = 150 are investigated through two-dimensional direct numerical simulation (DNS) and linear stability analysis over a parameter ...
Cheng Zhang, G. Tang, Lin Lu, Yan Jin, H. An, Liang Cheng   +5 more
semanticscholar   +1 more source

Active Control Of Flow-induced Vibration

Journal of Sound and Vibration, 1993
Abstract The active control of flow-induced oscillations, specifically, vortex-induced oscillations of circular cylinders and galloping oscillations of circular cylinders and galloping oscillations of a square prism, are considered. In the case of vortex-induced oscillations, the vibrating cylinder is modeled as a single-degree-of-freedom (sdof ...
Venkatraman, K., Narayanan, S.
openaire   +2 more sources

Effect of internal flow on vortex-induced vibration dynamics of a flexible mining riser in external shear current

Marine Structures, 2021
Vortex-induced vibration (VIV) of flexible risers with both internal and external flows has received much attention recently. Hence, VIV dynamics of a fluid-conveying flexible riser subjected to external shear current is investigated.
Jin-Long Duan, Ji-Fu Zhou, Y. You, Xu Wang   +3 more
semanticscholar   +1 more source

Flow-induced vibration of a trapezoidal cylinder placed at typical flow orientations

, 2021
This paper reports the numerical results of the flow-induced vibration (FIV) of a trapezoidal cylinder with base length ratio of 0.3 placed at various flow orientations. Three typical attack angles ( θ ) of 0° (shorter base facing flow), 90° and 180° are
Hong-Jun Zhu, Tao Tang, Yun Gao, Tong-Ming Zhou, Jun-Lei Wang   +4 more
semanticscholar   +1 more source

Computational fluid dynamics analysis on flow-induced vibration of a cryogenic poppet valve in consideration of cavitation effect

Journal of Zhejiang University: Science A, 2022
Poppet valves are basic components of many manufacturing operations and industrial processes. The valve plug will withstand unbalanced pressure during the switching process due to the complex fluid-structure interaction (FSI) in the local flow condition,
Aibo Wei, Ronggang Gao, Wei Zhang, Shunyan Wang, Ruijia Zhou, Xiao-Bin Zhang   +5 more
semanticscholar   +1 more source

A formulation for turbulent-flow-induced vibration of elastic plates with general boundary conditions

International Journal of Mechanical Sciences, 2021
A formulation for studying the vibration characteristics of the rectangular plate with general boundary conditions excited by the turbulent boundary layer is developed in this paper.
Xiao-Ji Song, G. Jin, Tian-Gui Ye, Sai-Feng Zhong   +3 more
semanticscholar   +1 more source

Aerodynamic wake oscillator for modeling flow-induced vibration of tandem cylinders with short spans

, 2021
The tandem cylinders immersed in an oncoming flow undergo violent flow-induced vibration (FIV). The cylinders with short spans, in the specific conditions of airflow and mass damping, experience the galloping-like but self-limited vibration.
Xiantao Fan, Yang Wang, W. Tan
semanticscholar   +1 more source

Flow-Induced Vibrations in Bellows

Journal of Pressure Vessel Technology, 1989
Abstract Flow-induced vibrations have caused fatigue failures in a number of bellows units carrying cooling water flows. The bellows are made from Inconel 600 and have a nominal inside diameter of 20 mm. This paper presents the results of a project undertaken to study these vibrations and to develop a method for vibration alleviation ...
D. S. Weaver, P. Ainsworth
openaire   +1 more source

Flow-induced vibrations and the Landau equation

Journal of Fluids and Structures, 2013
Abstract The initial and general transient temporal behaviours of flow induced vibrations were studied particularly with regard to the extent with which self-excited, flow-induced vibrations can be described by the Landau equation. Three different cases are studied experimentally, using bodies with generic shape.
openaire   +3 more sources