Fretting wear of thin steel wires. Part 1: Influence of contact pressure

Cruzado, A.; Härtelt, M.; Wäsche, Rolf; Urchegui, M.A.; Gómez, X.

doi:10.1016/j.wear.2010.02.017

Cited by 106 publications

(30 citation statements)

References 16 publications

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“…It decreases from 15.1 to 9.46 mm 2 with the velocity increases from 6 to 42 mm/s. However, with the increase in stroke, the projection area increases from 10.34 to 15.1 mm 2 . This indicates that high sliding velocity is not conducive to the enlargement of wear scar when the contact load is small (100 N), and the larger stroke is easier to enlarge the wear region, which will cause more serious damage to wire rope.…”

Section: Wear Behaviormentioning

confidence: 95%

Tribological properties of winding hoisting rope between two layers with different sliding parameters

Chang

Peng

Zhu

et al. 2016

Advances in Mechanical Engineering

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The friction and wear behavior exists in ultra-deep coal mine between multi-layer winding hoisting ropes, and it decreases the rope's service life directly, which threatens the safety coal mine hoist. In order to obtain the tribological properties of winding hoisting rope, the effects of sliding velocity, displacement amplitude, and their combination on the tribological behavior of winding hoisting rope in ultra-deep coal mine were investigated on a self-made test rig. The results show that the effect of velocity on the coefficient of friction and temperature rise is more obvious than the stroke. Additionally, the mean value of the coefficient of friction in steady stage decreases from 0.721 to 0.524 with an increase in velocity and stroke at the same time. Furthermore, the temperature rise increases from about 3.43°C to 13.73°C with the velocity at stable stage, and the stroke has little influence on the temperature rise. Moreover, with the increase in velocity and stroke simultaneously, the damage in the wear region does not become more severe. In addition, the wear mechanisms include abrasive wear and adhesive wear, and its wear characteristics in the wear region are plastic deformation, pits, furrows, broken wires, cracking, and spalling.

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Section: Wear Behaviormentioning

confidence: 95%

Tribological properties of winding hoisting rope between two layers with different sliding parameters

Chang

Peng

Zhu

et al. 2016

Advances in Mechanical Engineering

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show abstract

“…On the one hand, fretting stroke is established between 0 and 300 μm [1]. On the other hand, previous works identified that premature rupture of the wires occurred for a contact force higher than 3 N [2,3]. Furthermore, it should be considered that the construction of a rope presents multiple wire contacts at different angles.…”

Section: Design Requirementsmentioning

confidence: 99%

An ad-hoc fretting wear tribotester design for thin steel wires

Llavori

Zabala

Urchegui³

et al. 2018

MATEC Web Conf.

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Abstract. Steel wire ropes experience fretting wear damage when the rope runs over a sheave promoting an oscillatory motion between the wires. Consequently, wear scars appear between the contacting wires leading to an increase of the stress field and the following rupture of the wires due to fatigue. That is why the understanding and prediction of the fretting wear phenomena of thin wires is fundamental in order to improve the performance of steel wire ropes. The present research deals with the design of an ad-hoc fretting wear test machine for thin wires. The test apparatus is designed for testing thin wires with a maximum diameter of 1.0 mm, at slip amplitudes ranging from 5 to 300 μm, crossing angle between 0-90º, and contacting force ranging from 0,5 to 5 N. The working principle of displacement amplitude and contacting force as well as the crossing angle between the wires are described. Preliminary studies for understanding the fretting wear characteristics are presented, analysing 0.45 mm diameter cold-drawn eutectoid carbon steel (0.8% C) wires (tensile strength higher than 3000 MPa).

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“…A la hora de la simulación del desgaste se utiliza el coeficiente de rozamiento correspondiente a la segunda mitad del ensayo ya que, inicialmente, se observa un periodo en el que el coeficiente de rozamiento varía alcanzando, finalmente, un valor estable [12] .…”

Section: Medidas Tribológicasunclassified

Definición de una metodología optimizada para la simulación del desgaste en materiales metálicos

Cruzado¹,

Zabala²,

Urchegui³

et al. 2010

REVMETAL

Self Cite

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ResumenLa simulación del desgaste mediante el Método de Elementos Finitos (MEF) es una técnica que presenta grandes ventajas para la mejora del diseño de componentes ya que permite reducir el coste que conlleva la experimentación (tiempo de ensayo, materiales, medidas tribológicas). En el caso concreto de la optimización de sistemas multihilo sometidos a fretting, como es el caso de los cables metálicos donde se dan contactos cilindro-cilindro, este método puede resultar especialmente eficiente. Sin embargo, la simulación del desgaste resulta una técnica compleja ya que consta de dos núcleos importantes: por un lado, la resolución del contacto y, por otro, la introducción del modelo de desgaste, requiriendo, para ello, de un coste computacional muy importante. Por ello, en este trabajo se define una metodología a seguir con el fin de optimizar el modelo, en términos de tiempo computacional, para un sistema bloque-cilindro. La metodología definida sería aplicable a todos los modelos de desgaste, de geometrías más complejas. Finalmente, se introduce una técnica que consiste en la introducción de un acelerador de desgaste variable y autoajustable, teniendo en cuenta la evolución de la presión máxima de desgaste y el incremento umbral de desgaste. Esta técnica resulta indispensable en cuerpos sometidos a grandes desgastes, reduciendo el tiempo computacional en un 87 % y un error inferior al 1 %. Palabras claveDesgaste; Elementos finitos; Acelerador variable; Materiales metálicos; Metodología optimizada. Optimized methodology for the wear simulation of metallic materials AbstractThe wear simulation with finite element method (FEM) presents great advantages for the improvement of components, because of the reduction in the cost in comparison to the experimental procedure (test time, materials, tribological measurements). In the case of wire rope optimization, where one of the great problems is wear due to fretting in cylinder-cylinder contact points, this method could be efficient. Nevertheless, the wear simulation results in a complex methodology: on the one hand is needed to solve the contact problem and on the other hand the introduction of the wear model. For this reason, this methodology results in high computational time consuming. Consequently an efficient methodology for the optimization of the model, in terms of the reduction of computational time, is presented in this work for a block-on-ring system. Finally a variable wear speed factor and auto-fitting with respect to the evolution of maximum contact pressure and with respect to the maximum limit wear increment is introduced. This is necessary, in systems where high amount of wear is presented with a reduction of 87 % in computational time and an error of less than 1 %.

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Fretting wear of thin steel wires. Part 1: Influence of contact pressure

Cited by 106 publications

References 16 publications

Tribological properties of winding hoisting rope between two layers with different sliding parameters

Tribological properties of winding hoisting rope between two layers with different sliding parameters

An ad-hoc fretting wear tribotester design for thin steel wires

Definición de una metodología optimizada para la simulación del desgaste en materiales metálicos

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