Results 211 to 220 of about 1,408 (249)
Some of the next articles are maybe not open access.
Vibration Control to Avoid Stick-Slip Motion
JVC/Journal of Vibration and Control, 2004Friction-induced self-sustained oscillations result in a very robust limit cycle that characterizes stick-slip motion. This type of motion should be avoided under any circumstances because it creates noise, wear, and damage. In this paper we show, by simple models, how stick-slip motion can be avoided. Effective methods are: (i) appropriate increase of
Karl Popp
exaly +2 more sources
Stick-Slip Vibration of Drill Strings
Journal of Engineering for Industry, 1991The stick-slip vibration is introduced as a new mechanism to explain the large amplitude torsional oscillation of the drill strings in oil and gas well drillings. A record of field data is identified and simulated according to the new mechanism. The analytical results derived from the numerical simulation agree with the field data with 95.6 percent ...
Yu-Hwa Wang, Yao-Qun Lin
exaly +2 more sources
Stick–slip vibration of an oscillator with damping
Nonlinear Dynamics, 2016This paper proposes a new criterion for the occurrence of stick–slip vibration in an oscillator excited by a moving belt. Equations of motion were derived for a single-degree-of-freedom oscillator excited by the friction between the oscillator mass and a moving belt, considering two types of velocity-dependent friction models: exponential and ...
Jintai Chung, Chung Jintai
exaly +2 more sources
The effect of frequency of vibration and humidity on the stick–slip amplitude
International Journal of Mechanics and Materials in Design, 2010This work examines the variation of stick–slip amplitude with the variation of frequency of vibration and relative humidity on a mild steel disc. A pin-on-disc machine, developed by the authors, capable of vibrating the disc at different frequency is used for the experiments.
Abdo Jamil
exaly +2 more sources
Vibration and Noise Behaviors During Stick–Slip Friction
Tribology Letters, 2019Frictional vibration and noise usually cause machining error and noise pollution. Stick–slip plays an important role in generating frictional vibration and noise. This study characterized frictional vibration and noise during the stick–slip of a Si3N4 ceramic/metal friction by using an acoustic emission method.
Conglin Dong, Jiliang Mo, Xiuqin Bai
exaly +2 more sources
The influence of interfacial wear characteristics on stick-slip vibration
Tribology International, 2023Z Y Xiang, J L Mo
exaly +2 more sources
MECHANICAL STICK-SLIP VIBRATIONS
International Journal of Bifurcation and Chaos, 1995In this paper we consider the behavior of a two degree-of-freedom mechanical system incorporating static and dynamic friction, assumed to be a decreasing function of the relative sliding velocity. The model consists of two blocks linked by springs, which ride upon a moving belt.
GALVANETTO, UGO +2 more
openaire +3 more sources
Stick-slip vibrations and chaos
Philosophical Transactions of the Royal Society of London. Series A: Physical and Engineering Sciences, 1990Abstract Stick-slip vibrations are self-sustained oscillations induced by dry friction. They occur in engineering systems as well as in our everyday life, e.g. the sound of bowed instruments results from stick—slip vibrations of the strings.
K. K., P. Stelter
openaire +1 more source
Control of Stick-Slip Vibration in Drillstrings with Multiple Frequencies
2020 American Control Conference (ACC), 2020Torsional vibration is a common phenomenon, known as stick-slip in oil-well drilling, that causes poor drilling performance, downhole tool failure, and bit wear. It is observed that stick-slip vibration- generally occur at multiple frequencies. To help mitigate torsional vibration, a dynamic model of drillstring is first studied where analytical ...
Zhijie Sun, Sujian Huang
openaire +1 more source
Oscillation pattern of stick–slip vibrations
International Journal of Non-Linear Mechanics, 2009Abstract This paper studies the stick–slip oscillations of discrete systems interacting with translating energy source through a non-linear smooth friction curve. The stick–slip limit cycle oscillations of a single degree-of-freedom model are examined by means of numerical time-integration and analytical methods.
Jaeyoung Kang +2 more
openaire +1 more source