Vibrations Induced by Dry Friction

Jarvis, Roger P.; Mills, B.

doi:10.1177/0020348363178001124

Cited by 102 publications

(45 citation statements)

References 2 publications

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“…This school of thought is based on the work of Spurr [112] and has been extended in other works e.g. [113,114,115].…”

Section: Sprag-slipmentioning

confidence: 99%

Overview of disc brakes and related phenomena - a review

Rashid

2014

IJVNV

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Disc brakes have evolved over time to be a reliable method of decelerating and stopping a vehicle. There have been different designs of disc brake systems for different applications. This review gives a detailed description of different geometries of the components and the materials used in a disc brake system. In spite of all the improvements, there are still many operational issues related to disc brakes that need to be understood in a greater detail and resolved. There has been a lot of research going on about these issues and at the same time different methods are being proposed to eliminate or reduce them. There has also been an intensive fundamental research going on about the evolution of tribological interface of disc-pad system. One major purpose of the present paper is to give a comprehensive overview of all such developments.

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“…This school of thought is based on the work of Spurr [112] and has been extended in other works e.g. [113,114,115].…”

Section: Sprag-slipmentioning

confidence: 99%

Overview of disc brakes and related phenomena - a review

Rashid

2014

IJVNV

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“…(1)), and the relationship between the normal stress and the tangential stress (Eqs. (2) and (3)), the global expression of the nonlinear terms F NL can be expressed. The latter have been presented in a previous study [14] and are developed in Appendix A.…”

Section: Friction Modelingmentioning

confidence: 99%

“…First, Spurr [1] proposed a sprag-slip phenomenon based on geometrically induced instability. With the works of Jarvis and Mills [2], his theory was expanded into a more generic coupling of degrees of freedom. Most recent studies on friction-induced instabilities have been performed on the basis of this theory.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear transient vibrations and coexistences of multi-instabilities induced by friction in an aircraft braking system

Chevillot¹,

Sinou²,

Hardouin³

2009

Journal of Sound and Vibration

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Hardouin. Nonlinear transient vibrations and coexistences of multi-instabilities induced by friction in an aircraft braking system. Journal of Sound and Vibration, Elsevier, 2009, 328 (4-5) AbstractFriction-induced vibration is still a cause for concern in a wide variety of mechanical systems, because it can lead to structural damage if high vibration levels are reached. Another effect is the noise produced that can be very unpleasant for end-users, thereby making it a major problem in the field of terrestrial transport. In this work the case of an aircraft braking system is examined. An analytical model with polynomial nonlinearity in the contact between rotors and stators is considered.Stability analysis is commonly used to evaluate the capacity of a nonlinear system to generate frictioninduced vibrations. With this approach, the effects of variations in the system parameters on stability can be easily estimated. However, this technique does not give the amplitude of the vibrations produced. The integration of the full set of nonlinear dynamic equations allows computing the time-history response of the system when vibration occurs. This technique, which can be time-consuming for a model with a large number of degrees of freedom (dof), is nevertheless necessary in order to calculate the transient-state behavior of the system. The use of a Continuous Wavelet Transform (CWT) is very suitable for the detailed analysis of the transient response. In this paper, the possibilities of coexistence of several instabilities at the same time will be examined. It will be shown that the behavior of the brake can be very complex and cannot be predicted by stability analysis alone.

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“…The vibrations induced by dry friction have been studied by Jarvis and Mills [4]. By means of numerical analysis they showed, theoretically, that the variation in the coefficient of friction with the relative velocity is insufficient to cause vibrations and that the instability is due to the manner in which the motions of the components take place.…”

Section: Introductionmentioning

confidence: 99%

The influence of the interface coefficient of friction upon the propensity to judder in automotive clutches

Centea

Rahnejat

Menday

1999

Proceedings of the Institution of Mechanical Engineers, Part D:

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This paper presents an investigation of the driveline torsional vibration behaviour, referred to as judder, which takes place during the clutch engagement process, particularly on small trucks with diesel engines. A non-linear multibody dynamic model of the clutch mechanism is employed to study the effect of various clutch system and driveline components on the clutch actuation performance. The paper demonstrates that judder is affected by driveline inertial changes, variation in the coefficient of friction, v, of the friction disc linings with slip speed, 6, and the loss of clamp load. The results of the simulations show that various friction materials with different v-6 characteristics produce torsional self-excited vibrations of the driveline. The results also show that loss of clamp load relating to the speed of clutch actuation also contributes to judder. Furthermore, it is shown that the simulation results conform closely to the experimental findings.

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Vibrations Induced by Dry Friction

Cited by 102 publications

References 2 publications

Overview of disc brakes and related phenomena - a review

Overview of disc brakes and related phenomena - a review

Nonlinear transient vibrations and coexistences of multi-instabilities induced by friction in an aircraft braking system

The influence of the interface coefficient of friction upon the propensity to judder in automotive clutches

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