Traffic signals and information signs play a vivid role in maintaining safe travel by guiding drivers on highways urban roads. mast arm structures are susceptible to vibrations induced wind loads. Fatigue-induced failure is common these structures. However, it crucial ascertain the functionality of signal support This paper lays foundation for fully computational framework model mitigate wind-i...

The subsea jumper has become an essential part of production systems as a gas–liquid mixing pipeline connecting the end manifold (PLEM) to Christmas tree. During oil and gas transportation, common flow pattern, alternating characteristics slug easily cause vibration, resulting in instability or fatigue damage. present study investigates experimentally numerically M-shaped its induced vibrations...

Prediction and measurement of vibration power flow in structures are both important for locating vibration sources and sinks and for confirming vibration propagating paths. From the point of view of noise and vibration control in industries, the method is very important for practical reasons. Consequently, it is essential to address the state of the art of the method, its effectiveness and limi...

Anti-vibration bars (AVBs) are essential components of a steam generator (SG) and used to prevent tubes (SGTs) from vibrating intensely because flow-induced vibration. However, the contact force generated at surfaces between AVBs can change natural frequency wear behavior tube. Contact is represented by clamping in this study. Considering effect on sliding distance SGT, dynamic under different ...

A numerical simulation of vortex-induced vibration of a 2-dimensional elastic circular cylinder with two degree of freedom under the uniform flow is calculated when Reynolds is 200. 2-dimensional incompressible Navier-Stokes equations are solved with the space-time finite element method, the equation of the cylinder motion is solved with the new explicit integral method and the mesh renew is ac...

In order to study the acoustic resonance effect of a new type water drop labyrinth regulating valve, structural modal information and flow field valve under typical operating conditions are calculated by using ANSYS; Then distribution characteristics flow-induced noise LMS software boundary element method. The results show that minimum natural vibration frequency is 133.29 Hz; low frequency, ma...

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...

[Purpose] To investigate the effects of pre-induced muscle damage vibration stimulation on the pressure-pain threshold and muscle-fatigue-related metabolites of exercise-induced muscle damage. [Subjects and Methods] Thirty healthy, adult male subjects were randomly assigned to the pre-induced muscle damage vibration stimulation group, post-induced muscle damage vibration stimulation group, or c...