An Experimental Investigation of Dry Friction Noise for Several Metallic Materials

Baek, Jongsu; Kang, Jaeyoung

doi:10.3795/ksme-a.2015.39.7.681

Cited by 8 publications

(1 citation statement)

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“…The friction curve has been modeled using smoothing techniques in the friction-engaged model. [38][39][40] Wolf's algorithm 37 can be used to calculate Lyapunov exponents in a smooth frictional system since the smoothing method converts the discontinuous friction curve into a differentiable one.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the stick-slip behavior of coupled oscillators with dry friction

Amer

Shaker

Dahab

2023

Journal of Low Frequency Noise, Vibration and Active Control

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In this study, a model of two nonlinear spring masses subjected to a smooth friction-velocity curve is examined. The second order governing system of motion is obtained in view of the system friction forces. This system is transformed to another suitable one of first order to investigate the points of equilibrium using Hurwitz’s theory. The excitation and critical stick-slip (SS) speeds are determined in accordance with the characteristic equation for the Jacobian matrix of the system. The stability and behavior of the system motion, along with the behavior of the SS movement, are examined. The effect of various parameters, such as excitation speed, damping and fraction coefficients, linear and nonlinear stiffness of springs, and masses that affect the motion and stability of the system is analyzed and studied. This research has numerous practical applications in a variety of industries, including airports, modern car brakes, well drilling, explaining and understanding seismic events, mechanical transportation, friction in bridges, and civil systems, which all exhibit impacted friction in dynamics and stick-slip phenomena.

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Section: Introductionmentioning

confidence: 99%