نتایج جستجو برای: fluid induced vibration

تعداد نتایج: 1225740  

Journal: :journal of applied and computational mechanics 0
vincent olunloyo department of systems engineering, faculty of engineering, university of lagos charles osheku centre for space transport and propulsion, national space research and development agency patrick olayiwola department of mechanical & biomedical engineering, college of engineering, bells university of technology

in this paper, we present an analytical method for solving a well-posed boundary value problem of mathematical physics governing the vibration characteristics of an internal flow propelled fluid-structure interaction where the pipeline segment is idealized as an elastic hollow beam conveying an incompressible fluid on a viscoelastic foundation. the effect of coriolis and damping forces on the o...

In this study, the free vibration of partially fluid-filled laminated composite circular cylindrical shell with arbitrary boundary conditions has been investigated by using Rayleigh-Ritz method. The analysis has been carried out with strain-displacement relations based on Love’s thin shell theory and the contained fluid is assumed irrotational, incompressible and inviscid. After determining the...

2016
Zi-Long Zhao Zong-Yuan Liu Xi-Qiao Feng

Cattail or Typha, an emergent aquatic macrophyte widely distributed in lakes and other shallow water areas, has slender blades with a chiral morphology. The wind-resilient Typha blades can produce distinct hydraulic resistance for ecosystem functions. However, their stem may rupture and dislodge in excessive wind drag. In this paper, we combine fluid dynamics simulations and experimental measur...

The purpose of this article is to provide an analytical model of the vibroacoustic for an elastic beam submerged in low subsonic flows with mean velocities. In general, vibroacoustic modeling refers to the combined effects of sound propagation and mechanical vibration of the structure. Sound radiations from submerged structures are coupled with physical phenomena because the sound pressures act...

Journal: :CFD Letters 2021

Flow-induced vibration is an enthralling phenomenon in the field of engineering. Numerous studies have been conducted on converting flow kinetic energy to electrical using fundamental. Wake-induced one configurations used optimise generation electricity. The results study effect gap between multiple bluff bodies will provide insight into optimising harvesting process. This focuses fluid behavio...

In this paper, the nonlinear vibrations analysis of functionally graded (FG) rectangular plate in contact with fluid are investigated analytically using first order shear deformation theory (FSDT). The pressure exerted on the free surface of the plate by the fluid is calculated using the velocity potential function and the Bernoulli equation. With the aid of von Karman nonlinearity strain-displ...

Journal: :Physical therapy 2015
Yohei Hamaue Jiro Nakano Yuki Sekino Sayaka Chuganji Junya Sakamoto Toshiro Yoshimura Minoru Okita Tomoki Origuchi

BACKGROUND Cast immobilization induces mechanical hypersensitivity, which disturbs rehabilitation. Although vibration therapy can reduce various types of pain, whether vibration reduces immobilization-induced hypersensitivity remains unclear. OBJECTIVE The purpose of this study was to investigate the preventive and therapeutic effects of vibration therapy on immobilization-induced hypersensit...

Journal: :TELKOMNIKA Telecommunication Computing Electronics and Control 2023

Piezoelectric energy harvesters (PEHs) are a kind of harvester that generates electricity due to pressure or vibration. Vortex-induced vibration (VIV) is method utilized wind and bluff body generate the in PEH. The objective this research was study output voltage different bodies with various airflow velocities. Experimental simulation have done study. used PEH consists piezoelectric bimorph re...

Journal: :Journal of physics 2023

Abstract In order to analyze the vibration response of traveling temperature salt depth system cable at a certain velocity, its stress and fracture are analyzed. Based on ANSYS Workbench platform, numerical simulation model two-dimensional underwater vortex induced is built using fluid structure coupling calculation method. Six groups different speeds, including 1kn, 3kn, 6kn, 9kn, 12kn 15kn, s...

2014
Junho Suh Alan Palazzolo

This paper presents simulation results corresponding with the theoretical Morton effect model explained in Part I, where the 3D finite element models of bearing, shaft, and fluid film are adopted. In addition, it explains how thermal bow induced imbalance force develops in the spinning journal with time and how the vibration level is affected by the thermal bow vector. Shaft asymmetric thermal ...

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