Stick-slip vibrations and chaos

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August undefined, 2024

Web钻采工艺 ›› 2024, Vol. 46 ›› Issue (1): 23-29.. • 钻井工艺 • 上一篇下一篇 . 塔里木盆地巴什托构造带钻井提速关键技术研究李文霞 1,2, 李少安 1,2, 卓肖 3, 刘彪 1,2 , 吴杰 3, 石祥超 3 Webof chaos. The phenomenon of stick–slip vibration is often encountered in nonsmooth mechanical sys-tems with dry friction [2,3,9], such as seismic isolation systems [4], disk brakes [5], and dynamic absorbers [6]. Stick–slip oscillations generate complex bifurcations and chaos and have been the subject of intense research [1–3,5,8,9,11–13].

Vibration Control to Avoid Stick-Slip Motion - Karl Popp, …

WebApr 10, 2024 · The entire stick–slip process forms a stable limit cycle in the relative motion plane of drill bit, and the stick–slip phenomenon occurs periodically. According to the established multi-degree-of-freedom drill string dynamics model with composite impact acceleration tool, combined with the parameters in Table 1 , the angular displacement ... flights to minneapolis google

Stick-Slip Vibrations Induced by Alternate Friction Models

http://www.zcgyzz.com/CN/Y2024/V46/I1/23 WebDec 10, 2013 · Vibration-driven systems can move progressively in resistive media owing to periodic motions of internal masses. In consideration of the external dry friction forces, … WebThe oscillations can generate two types of attractors: stick–slip and slip-only vibrations. Our numerical results show that chaos is generated by stick–slip vibrations, and these … flights to minneapolis may 31

Bifurcation analysis of stick–slip vibration in a 2-DOF nonlinear ...

塔里木盆地巴什托构造带钻井提速关键技术研究

WebJan 1, 2011 · The paper directs its analysis to the stick-slip motion which is the mostcommon form of torsional vibrations in drillstrings; stick-slip motion is defined as the continuous stopping andrelease of the bit/BHA due to the irregular downhole rotation prompted by the existing relationship between thefrictional torque and the torque applied … WebThe oscillations can generate two types of attractors: stick–slip and slip-only vibrations. Our numerical results show that chaos is generated by stick–slip vibrations, and these vibrations can be analyzed precisely using the 1D Poincaré return map. We therefore analyze the stick–slip vibrations generated by Eq. ( 5 ), or Eqs. cheryl murtagh rowley maWebAbstract In 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 … cheryl musick

"WebDec 10, 2013 · Vibration-driven systems can move progressively in resistive media owing to periodic motions of internal masses. In consideration of the external dry friction forces, the system is piecewise smooth and has been shown to … " - Stick-slip vibrations and chaos

Stick-slip vibrations and chaos

Stick–slip chaos in a mechanical oscillator with dry friction

WebJan 30, 2024 · Complex hidden attractors, such as period-3 responses and chaos, are found. It follows that jumps among multiple attractors can be easily triggered by an increase in the excitation level or a small disturbance of the initial condition. ... On this basis, the stick–slip vibrations and complex equilibrium bifurcations of a self-excited SD ... WebAug 1, 2024 · A simple 1-degree-of-freedom oscillator is used by Popp and Stelter [1] to study stick–slip vibration. The system consists of a spring–mass-model excited by a driven belt. Under external harmonic excitation, a route to chaos is revealed by tracking the transition point of stick–slip in the time history of displacement.

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WebJournal of Sound and Vibration. Volume 517, 20 January 2024, 116536. ... in the automotive industry give rise to new challenges when assessing the influence of material replacements on stick–slip effects. These effects may lead to new acoustic phenomena when aluminium is applied, e.g. coming from the interfaces of the wheel assembly between ... WebMar 1, 2024 · The stick-slip vibration (creep groan) induced by vehicle braking under low speed is one of the challenges in the automotive industry. Scholars have experimentally and theoretically studied this phenomenon.

WebAs shown in Fig. 4 the amplitude of lateral vibration decreases until the slip phase of motion vanishes and two layers of the beam vibrate as a single beam without slipping. It also indicates the details of lateral vibration in the vicinity of two motion phases and the conversion of stick-slip phase to pure stick one. ... Stick-slip chaos ... WebSep 1, 2009 · The stick–slip limit cycle oscillations of a single degree-of-freedom model are examined by means of numerical time-integration and analytical methods. Similar …

WebNov 1, 2004 · The stick-slip oscillator is extended by an additional degree of freedom, which couples the slipping motion to the normal force. The dynamic behavior of the system has been worked out by analytical investigations and numerical integration. WebMar 1, 2024 · The stick-slip vibration (creep groan) induced by vehicle braking under low speed is one of the challenges in the automotive industry. Scholars have experimentally …

WebMar 16, 1992 · They are positioned loosely between the roots of turbine blades improving the damping of blade vibrations by generating dry friction from the relative motion of blades and damper. This paper presents a theoretical approach to these stick-slip vibrations and compares theory with measurements.

WebJul 16, 1990 · 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 … Stick-slip vibrations are self-sustained oscillations induced by dry friction. They … Stick-slip vibrations and chaos By K. Popp and P. Stelter Institute of Mechanics, … Aims and scope. Continuing its long history of influential scientific publishing, … Pre-submission enquiries and submitting. Philosophical Transactions A publishes … Article types. Issues of Philosophical Transactions A contain a mix of article … The dynamics of nonlinear, dissipative systems have become a centre of … The journal bearing is ubiquitous in moving mechanical systems, and is a major … Theme issue ‘Taylor–Couette and related flows on the centennial of Taylor’s … CiteScore Very much like the Impact Factor except that it is based on the larger … cheryl musgrave indianaWebJun 19, 2013 · The present study focuses on the nonlinear analysis of the dynamical behavior of layered structures, including interfacial friction in the presence of the stick-slip phenomenon and large deformation. To achieve a proper outlook for the two-layer structure's behavior, it is essential to precisely realize the mechanisms of motion. cheryl mutrieWebStick-slip vibrations and chaos By K. Popp and P. Stelter Institute of Mechanics, University of Hannover, 11, D-3000 Hannover 1, F.R.G. 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 flights to minneapolis september 18WebThis paper presents a tribological and dynamic analysis of the stick-slip problem, under greased lubrication, taking into account. Several complex mechanisms can be responsible for undesirable friction-induced vibrations in many mechanical systems. This paper presents a tribological and dynamic analysis of the stick-slip problem, under greased ... cheryl musgrave for mayorWebFriction-induced self-sustained oscillations, also known as stick-slip vibrations, occur in mechanical systems as well as in everyday life. On the basis of a one-dimensional map, … flights to minneapolis november 5 htWebApr 1, 2014 · The pervasive stick-slip vibration during wiping is confirmed, and its temporal and spatial distributions are analyzed by way of time history and contour map. Duty ratio … flights to minneapolis round tripWebThis contribution presents simulation results of stick-slip vibrations in a multi-degree-of-freedom model for disk brake creep groan. These self-excited periodic oscillations are approximated by a combined Finite-Difference/Harmonic Balance method (FD/HB). The method shows an increased efficiency compared to a pure FD or HB approach, especially … cheryl musselman