Buscar
Mostrando ítems 1-10 de 4010
Experimental characterization of a nonlinear vibration absorber using free vibration
(2016-04-14)
Knowledge of the nonlinear characteristics of a vibration absorber is important if its performance is to be predicted accurately when connected to a host structure. This can be achieved theoretically, but experimental ...
On the undamped free vibration of a mass interacting with a Hertzian contact stiffness
(2011-12-01)
Three methods are used to determine the natural frequency of undamped free vibration of a mass interacting with a Hertzian contact stiffness. The exact value is determined using the first integral of motion. The harmonic ...
On the spectrum of rail vibration generated by a passing train
(2017-01-01)
Recent work in rail vibration has investigated methods for estimating track support stiffness from trackside vibration. This vibration, induced by the passage of a train, is mainly due to the load applied by the wheels, ...
Impedance-based damage detection under noise and vibration effects
(2018-05-01)
The electro-mechanical impedance technique has been extensively studied in recent decades as a non-destructive method for detecting structural damage in structural health monitoring applications using low-cost piezoelectric ...
Freezing of gait in Parkinson's disease: Evidence of sensory rather than attentional mechanisms through muscle vibration
(2016-08-01)
Introduction The role of proprioceptive integration impairments as the potential mechanism underlying Freezing of gait (FOG) in Parkinson's disease (PD) is still an open debate. The effects of muscle vibration (a well-known ...
Identifying the stiffness and damping of a nonlinear system using its free response perturbed with Gaussian white noise
(2020-05-01)
Measurement uncertainty can affect the accuracy of estimating parameters of vibrating systems. This article is concerned with the development of a method for estimating parameters from the free vibration response of a ...
Plantar thermographic evaluation after short-term whole body vibration in magellanic penguins with and without bumblefoot
(2016-01-01)
Background and Objective: The aim of the study was to investigate the acute effects of whole body vibration on the cutaneous temperature of the plantar surface of the feet in healthy penguins and in penguins with bumblefoots ...
Dynamical behavior and optimization of a nonlinear vibration absorber
(2016-10-01)
The paper concerns the introduction of cubic nonlinearity into a vibration absorber to improve its effectiveness. The nonlinear stiffness is offered by a thin clamped circular plate which undergoes large flexural deflection. ...
On the multi-mode behavior of vibrating rods attached to nonlinear springs
(2020-05-01)
This paper investigates the harmonic response of vibrating rods with an array of nonlinear springs. The proposed analysis is multi-mode in the sense that the response functions are plotted over wide frequency bands where ...