CONTEXT More research is needed to understand the flow characteristics of hyaluronic acid (HA) during motions used in osteopathic manipulative treatment and other manual therapies. OBJECTIVE To apply a 3-dimensional mathematical model to explore the relationship between the 3 manual therapy motions (constant sliding, perpendicular vibration, and tangential oscillation) and the flow characteri...

In this study, three-dimensional finite element models of high-mast light poles without and with spiral helical strakes were built using ANSYS software to investigate their vibration characteristics in a wind environment. Based on two-way, fluid–structure interaction simulation method, the dynamic responses under different windspeeds analyzed. The results indicate that pole structure may suffer...

Flow induced vibration and smart control of elastically coupled double-nanotube-systems (CDNTSs) are investigated based on Eringen’s nonlocal elasticity theory and Euler-Bernoulli beam model. The CDNTS is considered to be composed of Carbon Nanotube (CNT) and Boron-Nitride Nanotube (BNNT) which are attached by Pasternak media. The BNNT is subjected to an applied voltage in the axial direction w...

1. Vibration problems which focus on the resonant frequencies and their vibration mode shapes (eigenvalues and eigenvectors); 2. Transient response analysis of structural, fluid and thermal systems which are characterized by low-frequency response components; 3. Wave propagation which is dominated by high-frequency response components and often characterized by discontinuous response fields suc...

Numerical simulations are carried out to investigate the vortex-induced vibrations of a two-degree-of-freedom (2DOF) near-wall rotating cylinder. Considering effects gap ratio, reduced velocity and rotational rate, amplitude response, wake variations fluid forces analyzed, with Reynolds number 200 mass ratio set 1.6. The correlative mechanism in wake–hydrodynamics–vibration is revealed. results...

The pressure changes in the liquid-filled fluid circuits of Hydraulically Interconnected Suspensions (HIS) often lead to vibration of the whole pipeline and associated structures and hence become a source of structural noise, which degrades ride comfort. This paper presents the numerical and experimental investigation into the vibration of this kind of hydraulic circuit. The one-dimensional wav...

this paper describes the effects of induced magnetic field and partial slip on the peristaltic flow of a couple stress fluids in an asymmetric channel. the two dimensional equation of couple stress fluid are simplified by making the assumptions of long wave length and low reynolds number. the exact solutions of reduced momentum equation and magnetic force function have been computed in wave fra...

Afterbody—the portion of the body downstream shear layer separation points—was believed to be essential for vortex-induced vibration (VIV) a bluff body. A recent study by Zhao et al. [“Flow-induced D-section cylinders: An afterbody is not vibration,” J. Fluid Mech. 851, 317–343 (2018)] made an important forward demonstrate “an required VIV” through water tunnel experiments reversed prism. Howev...

Modal analysis of fluid flows is essential for understanding flow physics and fluid–solid interaction mechanisms implementing control. Unlike unstable flows, the intrinsic stability subcritical has led to failures in experimentally extracting clear structure modes. To this end, paper proposes an experimental modal testing method flows. Using dynamic mode decomposition, dominant modes around a c...

Because the underlying physiology of pathological tremor in a Parkinson's patient is not well understood, the existing physical and drug therapies have not been successful in tremor treatment. Different mathematical modeling of such vibration has been introduced to investigate the problem and reduce the existing vibration. Most of the models have represented the induced vibration as a sinusoida...