Abstract The subject of the article is analysis ride comfort for a passenger selected types rail vehicles on basis main factor determining its level - mechanical vibrations. research was based measurements vibration accelerations and RMS values in one-third octave bands which were calculated from measured accelerations. tested objects four vehicles. This presents results carried out each vehicl...

A rotating machine is a very complex device that involves electrical, mechanical and control systems. Therefore, the whole representation of a machine requires the specification of electrical and mechanical parameters, as well as control system data. The representation of the mechanical part and the control systems are only needed for low frequency transients [1]. An accurate representation of ...

The aim of the study is to characterize the local muscles motion in individuals undergoing whole body mechanical stimulation. In this study we aim also to evaluate how subject positioning modifies vibration dumping, altering local mechanical stimulus. Vibrations were delivered to subjects by the use of a vibrating platform, while stimulation frequency was increased linearly from 15 to 60 Hz. Tw...

Abstract Mechanical vibrations from heavy machines, building structures, or the human body can be harvested and directly converted into electrical energy. In this paper, potential to effectively harvest mechanical locally generate energy using a novel piezoelectric-rubber composite structure is explored. Piezoelectric lead zirconate titanate bonded silicone rubber form cylindrical composite-lik...

Mechanical vibrations of core internals are among the main perturbations that induce oscillations in neutron flux field, also known as noise. In this work, different simulation models for study influence mechanical fuel assemblies on reactor have been discussed. These methodologies employ diffusion approximation, with or without a previous homogenization model, to simulate noise time frequency ...